Patent Publication Number: US-2022218509-A1

Title: Systems, methods, and devices for alleviating erectile dysfunction

Description:
CROSS-REFERENCE 
     This application claims the benefit of U.S. Provisional Application No. 62/846,572, filed May 10, 2019, and U.S. Provisional Application No. 62/933,930, filed Nov. 11, 2019 which are hereby incorporated by reference in its entirety herein. 
    
    
     BACKGROUND OF THE INVENTION 
     Erectile dysfunction (ED), also known as impotence, is a type of sexual dysfunction characterized by the inability to develop or maintain an erection of the penis sufficient for sexual activity. Erectile dysfunction may have psychological consequences as it can be tied to relationship difficulties and self-image. 
     Some studies regarding erectile dysfunction have reported an average prevalence of 52%, which tends to increase with age. Some studies have further shown that approximately 40% and 70% of 40-year-old men and 70-year-old men are affected, respectively, whereby age is the variable most strongly associated with ED. ED has been further shown to increase with stress. 
     SUMMARY OF THE INVENTION 
     The present invention generally relates to medical devices, systems, and methods, and more particularly relates to devices, systems, and methods related to alleviating erectile dysfunction. 
     Erection is generally enabled in men through, in part, increased blood flow into the penis through arteries on the ventral side of the penis and decreased blood flow out from the penis through the veins on the dorsal side of the penis. Currently available ED devices attempt to alleviate ED in one of two ways—each with their own deficiencies. 
     The first type of ED device is rigid (e.g., made of metal, wood, glass, etc.). As the penis is shaped like an oval (wider than it is tall) and these devices are based on a circle, trying to fit an oval in a circle results in additional pressure being put on the sides in an effort to achieve minimal pressure on the top. This additional pressure on the side of the penis creates a distortion of the penis and an encumbrance of the arteries and corpora cavernosa. This works against the natural physiology of an erection. This pressure from rigid devices may be detrimental to the health of the tissue, arteries, and veins in the penis. Additionally, this pressure may hinder the ability of the user to employ Kegel exercises or other activities to their maximum effectiveness to increase inward blood flow and maintain the erection. Further, this uniform pressure may also limit natural inward blood flow into the penis, limiting the erection. Moreover, these rigid ED devices are less effective on a flaccid penis or an individual with severe ED, making these devices not ideal for initiating an erection. The second type of ED device is typically soft and malleable. However, these softer ED devices are ineffective in providing the appropriate constriction to either initiate or maintain a sufficient erection. These devices typically apply uniform pressure around the circumference of the penis to slow the outwards blood flow from the penis. However, the uniform pressure from these devices may be detrimental to the health of the tissue, arteries, and veins in the penis. Additionally, this uniform pressure may hinder the ability for the user to employ Kegel exercises or other activities to their maximum effectiveness to increase inward blood flow and maintain the erection. Further, this uniform pressure may also limit natural inward blood flow into the penis, limiting the erection. 
     In addition, currently available ED device configurations do not account for the particular shape (e.g., the devices are shaped like a perfect circle) or the specific anatomical regions and characteristics therein (e.g., location, size, and function of the superficial and deep dorsal veins, dorsal arteries, dorsal nerves, cavernous arteries, urethra, and corpus spongiosum) of the penis, which is not shaped like a circle. Nor do currently available ED devices provide adequate features on the exterior of the device to directly stimulate the partner&#39;s sexual experience, which may have negative psychological impact on the user and exacerbate any ED issues. Finally, none of the currently available ED devices offer instructions or guidance on selecting the properly sized device for the specific user. 
     Provided herein are ED methods, devices, and systems configured to more effectively prevent outwards blood flow from the penis to the body. Further provided herein are methods, devices, and systems that more effectively promote inward blood flow into the penis. Further provided herein are methods, devices, and systems that aid initiation and maintenance of an erection. Further provided herein are methods, devices, and systems that more directly and effectively stimulate the partner&#39;s sexual experience. Further provided herein are methods, devices, and systems that are configured to reduce physical ED symptoms and/or eliminate ED exacerbating performance stress. 
     A first aspect provided herein are penile constriction devices comprising an arched rod comprising: a first arm comprising a first coupling end and a first converging end having a first terminus; a second arm comprising a second coupling end and a second converging end having a second terminus disconnected from the first terminus, wherein the first converging end and the second converging end converge to form a constriction region; and a bridge connecting the first coupling end to the second coupling end, the bridge comprising a compression region rising inferiorly from an inferior side of the bridge. 
     Optionally, in this or any other embodiment, the device has a constriction gap width, wherein the constriction gap width is measured as a minimum distance between the first converging end and the second converging end within the constriction region. Optionally, in this or any other embodiment, the device has a constriction gap width of about 0 inches to about 1.25 inches. Optionally, in this or any other embodiment, the device has a constriction gap width of at least about 0 inches. Optionally, in this or any other embodiment, the device has a constriction gap width of at most about 1.25 inches. Optionally, in this or any other embodiment, the device has a constriction gap width of about 0 inches to about 0.125 inches, about 0 inches to about 0.375 inches, about 0 inches to about 0.5 inches, about 0 inches to about 0.625 inches, about 0 inches to about 0.75 inches, about 0 inches to about 0.875 inches, about 0 inches to about 1 inch, about 0 inches to about 1.125 inches, about 0 inches to about 1.25 inches, about 0.125 inches to about 0.375 inches, about 0.125 inches to about 0.5 inches, about 0.125 inches to about 0.625 inches, about 0.125 inches to about 0.75 inches, about 0.125 inches to about 0.875 inches, about 0.125 inches to about 1 inch, about 0.125 inches to about 1.125 inches, about 0.125 inches to about 1.25 inches, about 0.375 inches to about 0.5 inches, about 0.375 inches to about 0.625 inches, about 0.375 inches to about 0.75 inches, about 0.375 inches to about 0.875 inches, about 0.375 inches to about 1 inch, about 0.375 inches to about 1.125 inches, about 0.375 inches to about 1.25 inches, about 0.5 inches to about 0.625 inches, about 0.5 inches to about 0.75 inches, about 0.5 inches to about 0.875 inches, about 0.5 inches to about 1 inch, about 0.5 inches to about 1.125 inches, about 0.5 inches to about 1.25 inches, about 0.625 inches to about 0.75 inches, about 0.625 inches to about 0.875 inches, about 0.625 inches to about 1 inch, about 0.625 inches to about 1.125 inches, about 0.625 inches to about 1.25 inches, about 0.75 inches to about 0.875 inches, about 0.75 inches to about 1 inch, about 0.75 inches to about 1.125 inches, about 0.75 inches to about 1.25 inches, about 0.875 inches to about 1 inch, about 0.875 inches to about 1.125 inches, about 0.875 inches to about 1.25 inches, about 1 inch to about 1.125 inches, about 1 inch to about 1.25 inches, or about 1.125 inches to about 1.25 inches. Optionally, in this or any other embodiment, the device has a constriction gap width of about 0 inches, about 0.125 inches, about 0.375 inches, about 0.5 inches, about 0.625 inches, about 0.75 inches, about 0.875 inches, about 1 inch, about 1.125 inches, or about 1.25 inches. Optionally, in this or any other embodiment, the device has a constriction gap width of at least about 0 inches, about 0.125 inches, about 0.375 inches, about 0.5 inches, about 0.625 inches, about 0.75 inches, about 0.875 inches, about 1 inch, about 1.125 inches, or about 1.25 inches. Optionally, in this or any other embodiment, the device has a constriction gap width of at most about 0.125 inches, about 0.375 inches, about 0.5 inches, about 0.625 inches, about 0.75 inches, about 0.875 inches, about 1 inch, about 1.125 inches, or about 1.25 inches. 
     Optionally, in this or any other embodiment, the device has a constriction height, wherein the constriction height is measured as a normal distance between a constriction point and the inferior side of the bridge, and wherein the constriction point is defined as the midpoint of the constriction gap width. Optionally, in this or any other embodiment, the device has a constriction height of about 0.5 inches to about 2.5 inches. Optionally, in this or any other embodiment, the device has a constriction height of at least about 0.5 inches. Optionally, in this or any other embodiment, the device has a constriction height of at most about 2.5 inches. Optionally, in this or any other embodiment, the device has a constriction height of about 0.5 inches to about 0.75 inches, about 0.5 inches to about 1 inch, about 0.5 inches to about 1.25 inches, about 0.5 inches to about 1.5 inches, about 0.5 inches to about 1.75 inches, about 0.5 inches to about 2 inches, about 0.5 inches to about 2.25 inches, about 0.5 inches to about 2.5 inches, about 0.75 inches to about 1 inch, about 0.75 inches to about 1.25 inches, about 0.75 inches to about 1.5 inches, about 0.75 inches to about 1.75 inches, about 0.75 inches to about 2 inches, about 0.75 inches to about 2.25 inches, about 0.75 inches to about 2.5 inches, about 1 inch to about 1.25 inches, about 1 inch to about 1.5 inches, about 1 inch to about 1.75 inches, about 1 inch to about 2 inches, about 1 inch to about 2.25 inches, about 1 inch to about 2.5 inches, about 1.25 inches to about 1.5 inches, about 1.25 inches to about 1.75 inches, about 1.25 inches to about 2 inches, about 1.25 inches to about 2.25 inches, about 1.25 inches to about 2.5 inches, about 1.5 inches to about 1.75 inches, about 1.5 inches to about 2 inches, about 1.5 inches to about 2.25 inches, about 1.5 inches to about 2.5 inches, about 1.75 inches to about 2 inches, about 1.75 inches to about 2.25 inches, about 1.75 inches to about 2.5 inches, about 2 inches to about 2.25 inches, about 2 inches to about 2.5 inches, or about 2.25 inches to about 2.5 inches. Optionally, in this or any other embodiment, the device has a constriction height of about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, or about 2.5 inches. Optionally, in this or any other embodiment, the device has a constriction height of at least about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, or about 2.5 inches. Optionally, in this or any other embodiment, the device has a constriction height of at most about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, or about 2.5 inches. 
     Optionally, in this or any other embodiment, the device has a maximum inner width, wherein the maximum inner width is measured as a maximum normal distance between a mesial vertex of the surface of the first arm and a mesial vertex of the surface of the second arm, and wherein the maximum inner width is superior to the constriction gap. Optionally, in this or any other embodiment, the device has a maximum inner width of about 0.5 inches to about 3 inches. Optionally, in this or any other embodiment, the device has a maximum inner width of at least about 0.5 inches. Optionally, in this or any other embodiment, the device has a maximum inner width of at most about 3 inches. Optionally, in this or any other embodiment, the device has a maximum inner width of about 0.5 inches to about 0.75 inches, about 0.5 inches to about 1 inch, about 0.5 inches to about 1.25 inches, about 0.5 inches to about 1.5 inches, about 0.5 inches to about 1.75 inches, about 0.5 inches to about 2 inches, about 0.5 inches to about 2.25 inches, about 0.5 inches to about 2.5 inches, about 0.5 inches to about 2.75 inches, about 0.5 inches to about 3 inches, about 0.75 inches to about 1 inch, about 0.75 inches to about 1.25 inches, about 0.75 inches to about 1.5 inches, about 0.75 inches to about 1.75 inches, about 0.75 inches to about 2 inches, about 0.75 inches to about 2.25 inches, about 0.75 inches to about 2.5 inches, about 0.75 inches to about 2.75 inches, about 0.75 inches to about 3 inches, about 1 inch to about 1.25 inches, about 1 inch to about 1.5 inches, about 1 inch to about 1.75 inches, about 1 inch to about 2 inches, about 1 inch to about 2.25 inches, about 1 inch to about 2.5 inches, about 1 inch to about 2.75 inches, about 1 inch to about 3 inches, about 1.25 inches to about 1.5 inches, about 1.25 inches to about 1.75 inches, about 1.25 inches to about 2 inches, about 1.25 inches to about 2.25 inches, about 1.25 inches to about 2.5 inches, about 1.25 inches to about 2.75 inches, about 1.25 inches to about 3 inches, about 1.5 inches to about 1.75 inches, about 1.5 inches to about 2 inches, about 1.5 inches to about 2.25 inches, about 1.5 inches to about 2.5 inches, about 1.5 inches to about 2.75 inches, about 1.5 inches to about 3 inches, about 1.75 inches to about 2 inches, about 1.75 inches to about 2.25 inches, about 1.75 inches to about 2.5 inches, about 1.75 inches to about 2.75 inches, about 1.75 inches to about 3 inches, about 2 inches to about 2.25 inches, about 2 inches to about 2.5 inches, about 2 inches to about 2.75 inches, about 2 inches to about 3 inches, about 2.25 inches to about 2.5 inches, about 2.25 inches to about 2.75 inches, about 2.25 inches to about 3 inches, about 2.5 inches to about 2.75 inches, about 2.5 inches to about 3 inches, or about 2.75 inches to about 3 inches. Optionally, in this or any other embodiment, the device has a maximum inner width of about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, about 2.5 inches, about 2.75 inches, or about 3 inches. Optionally, in this or any other embodiment, the device has a maximum inner width of at least about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, about 2.5 inches, about 2.75 inches, or about 3 inches. Optionally, in this or any other embodiment, the device has a maximum inner width of at most about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, about 2.5 inches, about 2.75 inches, or about 3 inches. 
     Optionally, in this or any other embodiment, the device has an inferior height, wherein the inferior height is measured as a normal distance between a center point, and the inferior side of the bridge, wherein the center point comprises the midpoint of the maximum inner width. Optionally, in this or any other embodiment, the device has an inferior height of about 0.25 inches to about 1 inch. Optionally, in this or any other embodiment, the device has an inferior height of at least about 0.25 inches. Optionally, in this or any other embodiment, the device has an inferior height of at most about 1 inch. Optionally, in this or any other embodiment, the device has an inferior height of about 0.25 inches to about 0.3 inches, about 0.25 inches to about 0.35 inches, about 0.25 inches to about 0.4 inches, about 0.25 inches to about 0.45 inches, about 0.25 inches to about 0.5 inches, about 0.25 inches to about 0.6 inches, about 0.25 inches to about 0.7 inches, about 0.25 inches to about 0.8 inches, about 0.25 inches to about 0.9 inches, about 0.25 inches to about 1 inch, about 0.3 inches to about 0.35 inches, about 0.3 inches to about 0.4 inches, about 0.3 inches to about 0.45 inches, about 0.3 inches to about 0.5 inches, about 0.3 inches to about 0.6 inches, about 0.3 inches to about 0.7 inches, about 0.3 inches to about 0.8 inches, about 0.3 inches to about 0.9 inches, about 0.3 inches to about 1 inch, about 0.35 inches to about 0.4 inches, about 0.35 inches to about 0.45 inches, about 0.35 inches to about 0.5 inches, about 0.35 inches to about 0.6 inches, about 0.35 inches to about 0.7 inches, about 0.35 inches to about 0.8 inches, about 0.35 inches to about 0.9 inches, about 0.35 inches to about 1 inch, about 0.4 inches to about 0.45 inches, about 0.4 inches to about 0.5 inches, about 0.4 inches to about 0.6 inches, about 0.4 inches to about 0.7 inches, about 0.4 inches to about 0.8 inches, about 0.4 inches to about 0.9 inches, about 0.4 inches to about 1 inch, about 0.45 inches to about 0.5 inches, about 0.45 inches to about 0.6 inches, about 0.45 inches to about 0.7 inches, about 0.45 inches to about 0.8 inches, about 0.45 inches to about 0.9 inches, about 0.45 inches to about 1 inch, about 0.5 inches to about 0.6 inches, about 0.5 inches to about 0.7 inches, about 0.5 inches to about 0.8 inches, about 0.5 inches to about 0.9 inches, about 0.5 inches to about 1 inch, about 0.6 inches to about 0.7 inches, about 0.6 inches to about 0.8 inches, about 0.6 inches to about 0.9 inches, about 0.6 inches to about 1 inch, about 0.7 inches to about 0.8 inches, about 0.7 inches to about 0.9 inches, about 0.7 inches to about 1 inch, about 0.8 inches to about 0.9 inches, about 0.8 inches to about 1 inch, or about 0.9 inches to about 1 inch. Optionally, in this or any other embodiment, the device has an inferior height of about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, about 0.8 inches, about 0.9 inches, or about 1 inch. Optionally, in this or any other embodiment, the device has an inferior height of at least about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, about 0.8 inches, about 0.9 inches, or about 1 inch. Optionally, in this or any other embodiment, the device has an inferior height of at most about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, about 0.8 inches, about 0.9 inches, or about 1 inch. 
     Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is about 0.3:1 to about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is at least about 0.2:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is at most about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is about 0.2:1 to about 0.25:1, about 0.2:1 to about 0.3:1, about 0.2:1 to about 0.35:1, about 0.2:1 to about 0.4:1, about 0.2:1 to about 0.5:1, about 0.2:1 to about 0.6:1, about 0.2:1 to about 0.7:1, about 0.2:1 to about 0.8:1, about 0.2:1 to about 0.9:1, about 0.25:1 to about 0.3:1, about 0.25:1 to about 0.35:1, about 0.25:1 to about 0.4:1, about 0.25:1 to about 0.5:1, about 0.25:1 to about 0.6:1, about 0.25:1 to about 0.7:1, about 0.25:1 to about 0.8:1, about 0.25:1 to about 0.9:1, about 0.3:1 to about 0.35:1, about 0.3:1 to about 0.4:1, about 0.3:1 to about 0.5:1, about 0.3:1 to about 0.6:1, about 0.3:1 to about 0.7:1, about 0.3:1 to about 0.8:1, about 0.3:1 to about 0.9:1, about 0.35:1 to about 0.4:1, about 0.35:1 to about 0.5:1, about 0.35:1 to about 0.6:1, about 0.35:1 to about 0.7:1, about 0.35:1 to about 0.8:1, about 0.35:1 to about 0.9:1, about 0.4:1 to about 0.5:1, about 0.4:1 to about 0.6:1, about 0.4:1 to about 0.7:1, about 0.4:1 to about 0.8:1, about 0.4:1 to about 0.9:1, about 0.5:1 to about 0.6:1, about 0.5:1 to about 0.7:1, about 0.5:1 to about 0.8:1, about 0.5:1 to about 0.9:1, about 0.6:1 to about 0.7:1, about 0.6:1 to about 0.8:1, about 0.6:1 to about 0.9:1, about 0.7:1 to about 0.8:1, about 0.7:1 to about 0.9:1, or about 0.8:1 to about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.5:1, about 0.6:1, about 0.7:1, about 0.8:1, or about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is at least about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.5:1, about 0.6:1, about 0.7:1, about 0.8:1, or about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is at most about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.5:1, about 0.6:1, about 0.7:1, about 0.8:1, or about 0.9:1. 
     Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is about 0.7:1 to about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is at least about 0.7:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is at most about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is about 0.7:1 to about 0.725:1, about 0.7:1 to about 0.75:1, about 0.7:1 to about 0.775:1, about 0.7:1 to about 0.8:1, about 0.7:1 to about 0.825:1, about 0.7:1 to about 0.85:1, about 0.7:1 to about 0.875:1, about 0.7:1 to about 0.9:1, about 0.7:1 to about 0.925:1, about 0.7:1 to about 0.95:1, about 0.7:1 to about 0.99:1, about 0.725:1 to about 0.75:1, about 0.725:1 to about 0.775:1, about 0.725:1 to about 0.8:1, about 0.725:1 to about 0.825:1, about 0.725:1 to about 0.85:1, about 0.725:1 to about 0.875:1, about 0.725:1 to about 0.9:1, about 0.725:1 to about 0.925:1, about 0.725:1 to about 0.95:1, about 0.725:1 to about 0.99:1, about 0.75:1 to about 0.775:1, about 0.75:1 to about 0.8:1, about 0.75:1 to about 0.825:1, about 0.75:1 to about 0.85:1, about 0.75:1 to about 0.875:1, about 0.75:1 to about 0.9:1, about 0.75:1 to about 0.925:1, about 0.75:1 to about 0.95:1, about 0.75:1 to about 0.99:1, about 0.775:1 to about 0.8:1, about 0.775:1 to about 0.825:1, about 0.775:1 to about 0.85:1, about 0.775:1 to about 0.875:1, about 0.775:1 to about 0.9:1, about 0.775:1 to about 0.925:1, about 0.775:1 to about 0.95:1, about 0.775:1 to about 0.99:1, about 0.8:1 to about 0.825:1, about 0.8:1 to about 0.85:1, about 0.8:1 to about 0.875:1, about 0.8:1 to about 0.9:1, about 0.8:1 to about 0.925:1, about 0.8:1 to about 0.95:1, about 0.8:1 to about 0.99:1, about 0.825:1 to about 0.85:1, about 0.825:1 to about 0.875:1, about 0.825:1 to about 0.9:1, about 0.825:1 to about 0.925:1, about 0.825:1 to about 0.95:1, about 0.825:1 to about 0.99:1, about 0.85:1 to about 0.875:1, about 0.85:1 to about 0.9:1, about 0.85:1 to about 0.925:1, about 0.85:1 to about 0.95:1, about 0.85:1 to about 0.99:1, about 0.875:1 to about 0.9:1, about 0.875:1 to about 0.925:1, about 0.875:1 to about 0.95:1, about 0.875:1 to about 0.99:1, about 0.9:1 to about 0.925:1, about 0.9:1 to about 0.95:1, about 0.9:1 to about 0.99:1, about 0.925:1 to about 0.95:1, about 0.925:1 to about 0.99:1, or about 0.95:1 to about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is about 0.7:1, about 0.725:1, about 0.75:1, about 0.775:1, about 0.8:1, about 0.825:1, about 0.85:1, about 0.875:1, about 0.9:1, about 0.925:1, about 0.95:1, or about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is at least about 0.7:1, about 0.725:1, about 0.75:1, about 0.775:1, about 0.8:1, about 0.825:1, about 0.85:1, about 0.875:1, about 0.9:1, about 0.925:1, about 0.95:1, or about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is at most about 0.7:1, about 0.725:1, about 0.75:1, about 0.775:1, about 0.8:1, about 0.825:1, about 0.85:1, about 0.875:1, about 0.9:1, about 0.925:1, about 0.95:1, or about 0.99:1. 
     Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is about 0.15:1 to about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is at least about 0.15:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is at most about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is about 0.15:1 to about 0.2:1, about 0.15:1 to about 0.25:1, about 0.15:1 to about 0.3:1, about 0.15:1 to about 0.35:1, about 0.15:1 to about 0.4:1, about 0.15:1 to about 0.45:1, about 0.15:1 to about 0.5:1, about 0.15:1 to about 0.55:1, about 0.15:1 to about 0.6:1, about 0.2:1 to about 0.25:1, about 0.2:1 to about 0.3:1, about 0.2:1 to about 0.35:1, about 0.2:1 to about 0.4:1, about 0.2:1 to about 0.45:1, about 0.2:1 to about 0.5:1, about 0.2:1 to about 0.55:1, about 0.2:1 to about 0.6:1, about 0.25:1 to about 0.3:1, about 0.25:1 to about 0.35:1, about 0.25:1 to about 0.4:1, about 0.25:1 to about 0.45:1, about 0.25:1 to about 0.5:1, about 0.25:1 to about 0.55:1, about 0.25:1 to about 0.6:1, about 0.3:1 to about 0.35:1, about 0.3:1 to about 0.4:1, about 0.3:1 to about 0.45:1, about 0.3:1 to about 0.5:1, about 0.3:1 to about 0.55:1, about 0.3:1 to about 0.6:1, about 0.35:1 to about 0.4:1, about 0.35:1 to about 0.45:1, about 0.35:1 to about 0.5:1, about 0.35:1 to about 0.55:1, about 0.35:1 to about 0.6:1, about 0.4:1 to about 0.45:1, about 0.4:1 to about 0.5:1, about 0.4:1 to about 0.55:1, about 0.4:1 to about 0.6:1, about 0.45:1 to about 0.5:1, about 0.45:1 to about 0.55:1, about 0.45:1 to about 0.6:1, about 0.5:1 to about 0.55:1, about 0.5:1 to about 0.6:1, or about 0.55:1 to about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is about 0.15:1, about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.45:1, about 0.5:1, about 0.55:1, or about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is at least about 0.15:1, about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.45:1, about 0.5:1, about 0.55:1, or about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is at most about 0.15:1, about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.45:1, about 0.5:1, about 0.55:1, or about 0.6:1. 
     Optionally, in this or any other embodiment, the arched rod has a thickness, wherein the thickness is measured as a maximum normal cross-sectional width of at least a portion of at least one of the first arm, the second arm, and the bridge. Optionally, in this or any other embodiment, the device has a thickness of about 0.125 inches to about 0.8 inches. Optionally, in this or any other embodiment, the device has a thickness of at least about 0.125 inches. Optionally, in this or any other embodiment, the device has a thickness of at most about 0.8 inches. Optionally, in this or any other embodiment, the device has a thickness of about 0.125 inches to about 0.15 inches, about 0.125 inches to about 0.2 inches, about 0.125 inches to about 0.25 inches, about 0.125 inches to about 0.3 inches, about 0.125 inches to about 0.35 inches, about 0.125 inches to about 0.4 inches, about 0.125 inches to about 0.45 inches, about 0.125 inches to about 0.5 inches, about 0.125 inches to about 0.6 inches, about 0.125 inches to about 0.7 inches, about 0.125 inches to about 0.8 inches, about 0.15 inches to about 0.2 inches, about 0.15 inches to about 0.25 inches, about 0.15 inches to about 0.3 inches, about 0.15 inches to about 0.35 inches, about 0.15 inches to about 0.4 inches, about 0.15 inches to about 0.45 inches, about 0.15 inches to about 0.5 inches, about 0.15 inches to about 0.6 inches, about 0.15 inches to about 0.7 inches, about 0.15 inches to about 0.8 inches, about 0.2 inches to about 0.25 inches, about 0.2 inches to about 0.3 inches, about 0.2 inches to about 0.35 inches, about 0.2 inches to about 0.4 inches, about 0.2 inches to about 0.45 inches, about 0.2 inches to about 0.5 inches, about 0.2 inches to about 0.6 inches, about 0.2 inches to about 0.7 inches, about 0.2 inches to about 0.8 inches, about 0.25 inches to about 0.3 inches, about 0.25 inches to about 0.35 inches, about 0.25 inches to about 0.4 inches, about 0.25 inches to about 0.45 inches, about 0.25 inches to about 0.5 inches, about 0.25 inches to about 0.6 inches, about 0.25 inches to about 0.7 inches, about 0.25 inches to about 0.8 inches, about 0.3 inches to about 0.35 inches, about 0.3 inches to about 0.4 inches, about 0.3 inches to about 0.45 inches, about 0.3 inches to about 0.5 inches, about 0.3 inches to about 0.6 inches, about 0.3 inches to about 0.7 inches, about 0.3 inches to about 0.8 inches, about 0.35 inches to about 0.4 inches, about 0.35 inches to about 0.45 inches, about 0.35 inches to about 0.5 inches, about 0.35 inches to about 0.6 inches, about 0.35 inches to about 0.7 inches, about 0.35 inches to about 0.8 inches, about 0.4 inches to about 0.45 inches, about 0.4 inches to about 0.5 inches, about 0.4 inches to about 0.6 inches, about 0.4 inches to about 0.7 inches, about 0.4 inches to about 0.8 inches, about 0.45 inches to about 0.5 inches, about 0.45 inches to about 0.6 inches, about 0.45 inches to about 0.7 inches, about 0.45 inches to about 0.8 inches, about 0.5 inches to about 0.6 inches, about 0.5 inches to about 0.7 inches, about 0.5 inches to about 0.8 inches, about 0.6 inches to about 0.7 inches, about 0.6 inches to about 0.8 inches, or about 0.7 inches to about 0.8 inches. Optionally, in this or any other embodiment, the device has a thickness of about 0.125 inches, about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. Optionally, in this or any other embodiment, the device has a thickness of at least about 0.125 inches, about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. Optionally, in this or any other embodiment, the device has a thickness of at most about 0.125 inches, about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. 
     Optionally, in this or any other embodiment, has a first termination distance and a second termination distance, wherein the first termination distance may be measured as the maximum normal distance between the constriction gap width and the first terminus, and wherein the second termination distance may be measured as the maximum normal distance between the constriction gap width and the second terminus. Optionally, in this or any other embodiment, at least one of the first termination distance and the second termination distance is about 0.02 inches to about 0.08 inches. Optionally, in this or any other embodiment, at least one of the first termination distance and the second termination distance is at least about 0.02 inches. Optionally, in this or any other embodiment, at least one of the first termination distance and the second termination distance is at most about 0.08 inches. Optionally, in this or any other embodiment, at least one of the first termination distance and the second termination distance is about 0.02 inches to about 0.025 inches, about 0.02 inches to about 0.03 inches, about 0.02 inches to about 0.035 inches, about 0.02 inches to about 0.04 inches, about 0.02 inches to about 0.045 inches, about 0.02 inches to about 0.05 inches, about 0.02 inches to about 0.055 inches, about 0.02 inches to about 0.06 inches, about 0.02 inches to about 0.07 inches, about 0.02 inches to about 0.08 inches, about 0.025 inches to about 0.03 inches, about 0.025 inches to about 0.035 inches, about 0.025 inches to about 0.04 inches, about 0.025 inches to about 0.045 inches, about 0.025 inches to about 0.05 inches, about 0.025 inches to about 0.055 inches, about 0.025 inches to about 0.06 inches, about 0.025 inches to about 0.07 inches, about 0.025 inches to about 0.08 inches, about 0.03 inches to about 0.035 inches, about 0.03 inches to about 0.04 inches, about 0.03 inches to about 0.045 inches, about 0.03 inches to about 0.05 inches, about 0.03 inches to about 0.055 inches, about 0.03 inches to about 0.06 inches, about 0.03 inches to about 0.07 inches, about 0.03 inches to about 0.08 inches, about 0.035 inches to about 0.04 inches, about 0.035 inches to about 0.045 inches, about 0.035 inches to about 0.05 inches, about 0.035 inches to about 0.055 inches, about 0.035 inches to about 0.06 inches, about 0.035 inches to about 0.07 inches, about 0.035 inches to about 0.08 inches, about 0.04 inches to about 0.045 inches, about 0.04 inches to about 0.05 inches, about 0.04 inches to about 0.055 inches, about 0.04 inches to about 0.06 inches, about 0.04 inches to about 0.07 inches, about 0.04 inches to about 0.08 inches, about 0.045 inches to about 0.05 inches, about 0.045 inches to about 0.055 inches, about 0.045 inches to about 0.06 inches, about 0.045 inches to about 0.07 inches, about 0.045 inches to about 0.08 inches, about 0.05 inches to about 0.055 inches, about 0.05 inches to about 0.06 inches, about 0.05 inches to about 0.07 inches, about 0.05 inches to about 0.08 inches, about 0.055 inches to about 0.06 inches, about 0.055 inches to about 0.07 inches, about 0.055 inches to about 0.08 inches, about 0.06 inches to about 0.07 inches, about 0.06 inches to about 0.08 inches, or about 0.07 inches to about 0.08 inches. Optionally, in this or any other embodiment, at least one of the first termination distance and the second termination distance is about 0.02 inches, about 0.025 inches, about 0.03 inches, about 0.035 inches, about 0.04 inches, about 0.045 inches, about 0.05 inches, about 0.055 inches, about 0.06 inches, about 0.07 inches, or about 0.08 inches. Optionally, in this or any other embodiment, at least one of the first termination distance and the second termination distance is at least about 0.02 inches, about 0.025 inches, about 0.03 inches, about 0.035 inches, about 0.04 inches, about 0.045 inches, about 0.05 inches, about 0.055 inches, about 0.06 inches, about 0.07 inches, or about 0.08 inches. Optionally, in this or any other embodiment, at least one of the first termination distance and the second termination distance is at most about 0.02 inches, about 0.025 inches, about 0.03 inches, about 0.035 inches, about 0.04 inches, about 0.045 inches, about 0.05 inches, about 0.055 inches, about 0.06 inches, about 0.07 inches, or about 0.08 inches. 
     Optionally, in this or any other embodiment, the first terminus diverges from the constriction region to form a first elbow. Optionally, in this or any other embodiment, the second terminus diverges from the constriction region to form a second elbow. Optionally, in this or any other embodiment, the first elbow and the second elbow are configured to removably affix to a band. Optionally, in this or any other embodiment, the first arm and the second arm are configured to removably affix to a band. 
     Optionally, in this or any other embodiment, the compression region comprises: a first dorsal vein protrusion comprising: a first dorsal apex; and a first dorsal height measured as a first minimum normal distance between the first dorsal apex and a first lateral edge of the first dorsal vein protrusion where the first dorsal vein protrusion rises from the inferior side of the bridge. Optionally, in this or any other embodiment, the compression region comprises a second dorsal vein protrusion comprising: a second dorsal apex; and a second dorsal height measured as a second minimum normal distance between the second dorsal apex and a second lateral edge of the second dorsal vein protrusion where the second dorsal vein protrusion rises from the inferior side of the bridge. Optionally, in this or any other embodiment, the compression region comprises: a dorsal vein valley between the first dorsal vein apex and the second dorsal vein apex. 
     Optionally, in this or any other embodiment, the first dorsal vein protrusion, the dorsal vein valley, and the second dorsal vein protrusion are arranged sequentially within the compression region in a direction along the bridge from the first arm to the second arm. 
     Optionally, in this or any other embodiment, the device comprises a dorsal vein valley distance between the first dorsal apex and the second dorsal apex. Optionally, in this or any other embodiment, the dorsal vein valley distance is about 0.15 inches to about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is at least about 0.15 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is at most about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is about 0.15 inches to about 0.2 inches, about 0.15 inches to about 0.25 inches, about 0.15 inches to about 0.3 inches, about 0.15 inches to about 0.35 inches, about 0.15 inches to about 0.4 inches, about 0.15 inches to about 0.45 inches, about 0.15 inches to about 0.5 inches, about 0.15 inches to about 0.55 inches, about 0.15 inches to about 0.6 inches, about 0.15 inches to about 0.65 inches, about 0.15 inches to about 0.75 inches, about 0.2 inches to about 0.25 inches, about 0.2 inches to about 0.3 inches, about 0.2 inches to about 0.35 inches, about 0.2 inches to about 0.4 inches, about 0.2 inches to about 0.45 inches, about 0.2 inches to about 0.5 inches, about 0.2 inches to about 0.55 inches, about 0.2 inches to about 0.6 inches, about 0.2 inches to about 0.65 inches, about 0.2 inches to about 0.75 inches, about 0.25 inches to about 0.3 inches, about 0.25 inches to about 0.35 inches, about 0.25 inches to about 0.4 inches, about 0.25 inches to about 0.45 inches, about 0.25 inches to about 0.5 inches, about 0.25 inches to about 0.55 inches, about 0.25 inches to about 0.6 inches, about 0.25 inches to about 0.65 inches, about 0.25 inches to about 0.75 inches, about 0.3 inches to about 0.35 inches, about 0.3 inches to about 0.4 inches, about 0.3 inches to about 0.45 inches, about 0.3 inches to about 0.5 inches, about 0.3 inches to about 0.55 inches, about 0.3 inches to about 0.6 inches, about 0.3 inches to about 0.65 inches, about 0.3 inches to about 0.75 inches, about 0.35 inches to about 0.4 inches, about 0.35 inches to about 0.45 inches, about 0.35 inches to about 0.5 inches, about 0.35 inches to about 0.55 inches, about 0.35 inches to about 0.6 inches, about 0.35 inches to about 0.65 inches, about 0.35 inches to about 0.75 inches, about 0.4 inches to about 0.45 inches, about 0.4 inches to about 0.5 inches, about 0.4 inches to about 0.55 inches, about 0.4 inches to about 0.6 inches, about 0.4 inches to about 0.65 inches, about 0.4 inches to about 0.75 inches, about 0.45 inches to about 0.5 inches, about 0.45 inches to about 0.55 inches, about 0.45 inches to about 0.6 inches, about 0.45 inches to about 0.65 inches, about 0.45 inches to about 0.75 inches, about 0.5 inches to about 0.55 inches, about 0.5 inches to about 0.6 inches, about 0.5 inches to about 0.65 inches, about 0.5 inches to about 0.75 inches, about 0.55 inches to about 0.6 inches, about 0.55 inches to about 0.65 inches, about 0.55 inches to about 0.75 inches, about 0.6 inches to about 0.65 inches, about 0.6 inches to about 0.75 inches, or about 0.65 inches to about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.65 inches, or about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is at least about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.65 inches, or about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is at most about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.65 inches, or about 0.75 inches. 
     Optionally, in this or any other embodiment, the device comprises a compression region width between the first lateral edge and the second lateral edge. Optionally, in this or any other embodiment, the compression region width is about 0.2 inches to about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is at least about 0.2 inches. Optionally, in this or any other embodiment, the compression region width is at most about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is about 0.2 inches to about 0.25 inches, about 0.2 inches to about 0.3 inches, about 0.2 inches to about 0.35 inches, about 0.2 inches to about 0.4 inches, about 0.2 inches to about 0.45 inches, about 0.2 inches to about 0.5 inches, about 0.2 inches to about 0.55 inches, about 0.2 inches to about 0.6 inches, about 0.2 inches to about 0.7 inches, about 0.2 inches to about 0.8 inches, about 0.25 inches to about 0.3 inches, about 0.25 inches to about 0.35 inches, about 0.25 inches to about 0.4 inches, about 0.25 inches to about 0.45 inches, about 0.25 inches to about 0.5 inches, about 0.25 inches to about 0.55 inches, about 0.25 inches to about 0.6 inches, about 0.25 inches to about 0.7 inches, about 0.25 inches to about 0.8 inches, about 0.3 inches to about 0.35 inches, about 0.3 inches to about 0.4 inches, about 0.3 inches to about 0.45 inches, about 0.3 inches to about 0.5 inches, about 0.3 inches to about 0.55 inches, about 0.3 inches to about 0.6 inches, about 0.3 inches to about 0.7 inches, about 0.3 inches to about 0.8 inches, about 0.35 inches to about 0.4 inches, about 0.35 inches to about 0.45 inches, about 0.35 inches to about 0.5 inches, about 0.35 inches to about 0.55 inches, about 0.35 inches to about 0.6 inches, about 0.35 inches to about 0.7 inches, about 0.35 inches to about 0.8 inches, about 0.4 inches to about 0.45 inches, about 0.4 inches to about 0.5 inches, about 0.4 inches to about 0.55 inches, about 0.4 inches to about 0.6 inches, about 0.4 inches to about 0.7 inches, about 0.4 inches to about 0.8 inches, about 0.45 inches to about 0.5 inches, about 0.45 inches to about 0.55 inches, about 0.45 inches to about 0.6 inches, about 0.45 inches to about 0.7 inches, about 0.45 inches to about 0.8 inches, about 0.5 inches to about 0.55 inches, about 0.5 inches to about 0.6 inches, about 0.5 inches to about 0.7 inches, about 0.5 inches to about 0.8 inches, about 0.55 inches to about 0.6 inches, about 0.55 inches to about 0.7 inches, about 0.55 inches to about 0.8 inches, about 0.6 inches to about 0.7 inches, about 0.6 inches to about 0.8 inches, or about 0.7 inches to about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is at least about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is at most about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. 
     Optionally, in this or any other embodiment, the compression region within the dorsal vein valley at a center of the dorsal vein valley is superior to or has a same height relative to the first lateral edge as the first minimum normal distance or relative to the second lateral edge as the second minimum normal distance, or both. Optionally, in this or any other embodiment, the compression region is superior to or has a same height relative to the first lateral edge as the first minimum normal distance or relative to the second lateral edge as the second minimum normal distance, or both. Optionally, in this or any other embodiment, the compression region at the center of the dorsal vein valley is inferior to the first lateral edge, the second lateral edge, or both. Optionally, in this or any other embodiment, the compression region is inferior to the first lateral edge, the second lateral edge, or both. 
     Optionally, in this or any other embodiment, the device further comprises a plurality of friction protrusions on a superior side of the bridge. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises about 2 protrusions to about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises at least about 2 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises at most about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises about 2 protrusions to about 4 protrusions, about 2 protrusions to about 6 protrusions, about 2 protrusions to about 8 protrusions, about 2 protrusions to about 10 protrusions, about 2 protrusions to about 15 protrusions, about 2 protrusions to about 20 protrusions, about 2 protrusions to about 25 protrusions, about 2 protrusions to about 30 protrusions, about 2 protrusions to about 40 protrusions, about 2 protrusions to about 50 protrusions, about 2 protrusions to about 60 protrusions, about 4 protrusions to about 6 protrusions, about 4 protrusions to about 8 protrusions, about 4 protrusions to about 10 protrusions, about 4 protrusions to about 15 protrusions, about 4 protrusions to about 20 protrusions, about 4 protrusions to about 25 protrusions, about 4 protrusions to about 30 protrusions, about 4 protrusions to about 40 protrusions, about 4 protrusions to about 50 protrusions, about 4 protrusions to about 60 protrusions, about 6 protrusions to about 8 protrusions, about 6 protrusions to about 10 protrusions, about 6 protrusions to about 15 protrusions, about 6 protrusions to about 20 protrusions, about 6 protrusions to about 25 protrusions, about 6 protrusions to about 30 protrusions, about 6 protrusions to about 40 protrusions, about 6 protrusions to about 50 protrusions, about 6 protrusions to about 60 protrusions, about 8 protrusions to about 10 protrusions, about 8 protrusions to about 15 protrusions, about 8 protrusions to about 20 protrusions, about 8 protrusions to about 25 protrusions, about 8 protrusions to about 30 protrusions, about 8 protrusions to about 40 protrusions, about 8 protrusions to about 50 protrusions, about 8 protrusions to about 60 protrusions, about 10 protrusions to about 15 protrusions, about 10 protrusions to about 20 protrusions, about 10 protrusions to about 25 protrusions, about 10 protrusions to about 30 protrusions, about 10 protrusions to about 40 protrusions, about 10 protrusions to about 50 protrusions, about 10 protrusions to about 60 protrusions, about 15 protrusions to about 20 protrusions, about 15 protrusions to about 25 protrusions, about 15 protrusions to about 30 protrusions, about 15 protrusions to about 40 protrusions, about 15 protrusions to about 50 protrusions, about 15 protrusions to about 60 protrusions, about 20 protrusions to about 25 protrusions, about 20 protrusions to about 30 protrusions, about 20 protrusions to about 40 protrusions, about 20 protrusions to about 50 protrusions, about 20 protrusions to about 60 protrusions, about 25 protrusions to about 30 protrusions, about 25 protrusions to about 40 protrusions, about 25 protrusions to about 50 protrusions, about 25 protrusions to about 60 protrusions, about 30 protrusions to about 40 protrusions, about 30 protrusions to about 50 protrusions, about 30 protrusions to about 60 protrusions, about 40 protrusions to about 50 protrusions, about 40 protrusions to about 60 protrusions, or about 50 protrusions to about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises about 2 protrusions, about 4 protrusions, about 6 protrusions, about 8 protrusions, about 10 protrusions, about 15 protrusions, about 20 protrusions, about 25 protrusions, about 30 protrusions, about 40 protrusions, about 50 protrusions, or about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises at most about 2 protrusions, about 4 protrusions, about 6 protrusions, about 8 protrusions, about 10 protrusions, about 15 protrusions, about 20 protrusions, about 25 protrusions, about 30 protrusions, about 40 protrusions, about 50 protrusions, or about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises at least about 2 protrusions, about 4 protrusions, about 6 protrusions, about 8 protrusions, about 10 protrusions, about 15 protrusions, about 20 protrusions, about 25 protrusions, about 30 protrusions, about 40 protrusions, about 50 protrusions, or about 60 protrusions. 
     Optionally, in this or any other embodiment, the friction protrusions have a height of about 0.01 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a height of about 0.01 inches to about 0.02 inches, about 0.01 inches to about 0.03 inches, about 0.01 inches to about 0.04 inches, about 0.01 inches to about 0.05 inches, about 0.01 inches to about 0.06 inches, about 0.02 inches to about 0.03 inches, about 0.02 inches to about 0.04 inches, about 0.02 inches to about 0.05 inches, about 0.02 inches to about 0.06 inches, about 0.03 inches to about 0.04 inches, about 0.03 inches to about 0.05 inches, about 0.03 inches to about 0.06 inches, about 0.04 inches to about 0.05 inches, about 0.04 inches to about 0.06 inches, or about 0.05 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a height of about 0.01 inches, about 0.02 inches, about 0.03 inches, about 0.04 inches, about 0.05 inches, or about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a height of at least about 0.01 inches, about 0.02 inches, about 0.03 inches, about 0.04 inches, or about 0.05 inches. Optionally, in this or any other embodiment, the friction protrusions have a height of at most about 0.02 inches, about 0.03 inches, about 0.04 inches, about 0.05 inches, or about 0.06 inches. 
     Optionally, in this or any other embodiment, the friction protrusions have a width of about 0.01 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a width of about 0.01 inches to about 0.02 inches, about 0.01 inches to about 0.03 inches, about 0.01 inches to about 0.04 inches, about 0.01 inches to about 0.05 inches, about 0.01 inches to about 0.06 inches, about 0.02 inches to about 0.03 inches, about 0.02 inches to about 0.04 inches, about 0.02 inches to about 0.05 inches, about 0.02 inches to about 0.06 inches, about 0.03 inches to about 0.04 inches, about 0.03 inches to about 0.05 inches, about 0.03 inches to about 0.06 inches, about 0.04 inches to about 0.05 inches, about 0.04 inches to about 0.06 inches, or about 0.05 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a width of about 0.01 inches, about 0.02 inches, about 0.03 inches, about 0.04 inches, about 0.05 inches, or about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a width of at least about 0.01 inches, about 0.02 inches, about 0.03 inches, about 0.04 inches, or about 0.05 inches. Optionally, in this or any other embodiment, the friction protrusions have a width of at most about 0.02 inches, about 0.03 inches, about 0.04 inches, about 0.05 inches, or about 0.06 inches. 
     Optionally, in this or any other embodiment, the arched rod comprises a cover substantially surrounding a frame, wherein a frame modulus of elasticity of the frame is higher than a cover modulus of elasticity of the cover. 
     Another aspect provided herein is a penile constriction system comprising a band and a penile constriction device comprising an arched rod comprising: a first arm comprising a first coupling end and a first converging end having a first terminus; a second arm comprising a second coupling end and a second converging end having a second terminus disconnected from the first terminus, wherein the first converging end and the second converging end converge to form a constriction region; and a bridge connecting the first coupling end to the second coupling end, the bridge comprising a compression region rising inferiorly from an inferior side of the bridge. 
     Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction gap width, wherein the constriction gap width is measured as a minimum distance between the first converging end and the second converging end within the constriction region. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction gap width of about 0 inches to about 1.25 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction gap width of at least about 0 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction gap width of at most about 1.25 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction gap width of about 0 inches to about 0.125 inches, about 0 inches to about 0.375 inches, about 0 inches to about 0.5 inches, about 0 inches to about 0.625 inches, about 0 inches to about 0.75 inches, about 0 inches to about 0.875 inches, about 0 inches to about 1 inch, about 0 inches to about 1.125 inches, about 0 inches to about 1.25 inches, about 0.125 inches to about 0.375 inches, about 0.125 inches to about 0.5 inches, about 0.125 inches to about 0.625 inches, about 0.125 inches to about 0.75 inches, about 0.125 inches to about 0.875 inches, about 0.125 inches to about 1 inch, about 0.125 inches to about 1.125 inches, about 0.125 inches to about 1.25 inches, about 0.375 inches to about 0.5 inches, about 0.375 inches to about 0.625 inches, about 0.375 inches to about 0.75 inches, about 0.375 inches to about 0.875 inches, about 0.375 inches to about 1 inch, about 0.375 inches to about 1.125 inches, about 0.375 inches to about 1.25 inches, about 0.5 inches to about 0.625 inches, about 0.5 inches to about 0.75 inches, about 0.5 inches to about 0.875 inches, about 0.5 inches to about 1 inch, about 0.5 inches to about 1.125 inches, about 0.5 inches to about 1.25 inches, about 0.625 inches to about 0.75 inches, about 0.625 inches to about 0.875 inches, about 0.625 inches to about 1 inch, about 0.625 inches to about 1.125 inches, about 0.625 inches to about 1.25 inches, about 0.75 inches to about 0.875 inches, about 0.75 inches to about 1 inch, about 0.75 inches to about 1.125 inches, about 0.75 inches to about 1.25 inches, about 0.875 inches to about 1 inch, about 0.875 inches to about 1.125 inches, about 0.875 inches to about 1.25 inches, about 1 inch to about 1.125 inches, about 1 inch to about 1.25 inches, or about 1.125 inches to about 1.25 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction gap width of about 0 inches, about 0.125 inches, about 0.375 inches, about 0.5 inches, about 0.625 inches, about 0.75 inches, about 0.875 inches, about 1 inch, about 1.125 inches, or about 1.25 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction gap width of at least about 0 inches, about 0.125 inches, about 0.375 inches, about 0.5 inches, about 0.625 inches, about 0.75 inches, about 0.875 inches, about 1 inch, about 1.125 inches, or about 1.25 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction gap width of at most about 0.125 inches, about 0.375 inches, about 0.5 inches, about 0.625 inches, about 0.75 inches, about 0.875 inches, about 1 inch, about 1.125 inches, or about 1.25 inches. 
     Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction height, wherein the constriction height is measured as a normal distance between a constriction point and the inferior side of the bridge, and wherein the constriction point is defined as the midpoint of the constriction gap width. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction height of about 0.5 inches to about 2.5 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction height of at least about 0.5 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction height of at most about 2.5 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction height of about 0.5 inches to about 0.75 inches, about 0.5 inches to about 1 inch, about 0.5 inches to about 1.25 inches, about 0.5 inches to about 1.5 inches, about 0.5 inches to about 1.75 inches, about 0.5 inches to about 2 inches, about 0.5 inches to about 2.25 inches, about 0.5 inches to about 2.5 inches, about 0.75 inches to about 1 inch, about 0.75 inches to about 1.25 inches, about 0.75 inches to about 1.5 inches, about 0.75 inches to about 1.75 inches, about 0.75 inches to about 2 inches, about 0.75 inches to about 2.25 inches, about 0.75 inches to about 2.5 inches, about 1 inch to about 1.25 inches, about 1 inch to about 1.5 inches, about 1 inch to about 1.75 inches, about 1 inch to about 2 inches, about 1 inch to about 2.25 inches, about 1 inch to about 2.5 inches, about 1.25 inches to about 1.5 inches, about 1.25 inches to about 1.75 inches, about 1.25 inches to about 2 inches, about 1.25 inches to about 2.25 inches, about 1.25 inches to about 2.5 inches, about 1.5 inches to about 1.75 inches, about 1.5 inches to about 2 inches, about 1.5 inches to about 2.25 inches, about 1.5 inches to about 2.5 inches, about 1.75 inches to about 2 inches, about 1.75 inches to about 2.25 inches, about 1.75 inches to about 2.5 inches, about 2 inches to about 2.25 inches, about 2 inches to about 2.5 inches, or about 2.25 inches to about 2.5 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction height of about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, or about 2.5 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction height of at least about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, or about 2.5 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a constriction height of at most about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, or about 2.5 inches. 
     Optionally, in this or any other embodiment, the device of the penile constriction system has a maximum inner width, wherein the maximum inner width is measured as a maximum normal distance between a mesial vertex of the surface of the first arm and a mesial vertex of the surface of the second arm, and wherein the maximum inner width is superior to the constriction gap. Optionally, in this or any other embodiment, the device of the penile constriction system has a maximum inner width of about 0.5 inches to about 3 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a maximum inner width of at least about 0.5 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a maximum inner width of at most about 3 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a maximum inner width of about 0.5 inches to about 0.75 inches, about 0.5 inches to about 1 inch, about 0.5 inches to about 1.25 inches, about 0.5 inches to about 1.5 inches, about 0.5 inches to about 1.75 inches, about 0.5 inches to about 2 inches, about 0.5 inches to about 2.25 inches, about 0.5 inches to about 2.5 inches, about 0.5 inches to about 2.75 inches, about 0.5 inches to about 3 inches, about 0.75 inches to about 1 inch, about 0.75 inches to about 1.25 inches, about 0.75 inches to about 1.5 inches, about 0.75 inches to about 1.75 inches, about 0.75 inches to about 2 inches, about 0.75 inches to about 2.25 inches, about 0.75 inches to about 2.5 inches, about 0.75 inches to about 2.75 inches, about 0.75 inches to about 3 inches, about 1 inch to about 1.25 inches, about 1 inch to about 1.5 inches, about 1 inch to about 1.75 inches, about 1 inch to about 2 inches, about 1 inch to about 2.25 inches, about 1 inch to about 2.5 inches, about 1 inch to about 2.75 inches, about 1 inch to about 3 inches, about 1.25 inches to about 1.5 inches, about 1.25 inches to about 1.75 inches, about 1.25 inches to about 2 inches, about 1.25 inches to about 2.25 inches, about 1.25 inches to about 2.5 inches, about 1.25 inches to about 2.75 inches, about 1.25 inches to about 3 inches, about 1.5 inches to about 1.75 inches, about 1.5 inches to about 2 inches, about 1.5 inches to about 2.25 inches, about 1.5 inches to about 2.5 inches, about 1.5 inches to about 2.75 inches, about 1.5 inches to about 3 inches, about 1.75 inches to about 2 inches, about 1.75 inches to about 2.25 inches, about 1.75 inches to about 2.5 inches, about 1.75 inches to about 2.75 inches, about 1.75 inches to about 3 inches, about 2 inches to about 2.25 inches, about 2 inches to about 2.5 inches, about 2 inches to about 2.75 inches, about 2 inches to about 3 inches, about 2.25 inches to about 2.5 inches, about 2.25 inches to about 2.75 inches, about 2.25 inches to about 3 inches, about 2.5 inches to about 2.75 inches, about 2.5 inches to about 3 inches, or about 2.75 inches to about 3 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a maximum inner width of about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, about 2.5 inches, about 2.75 inches, or about 3 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a maximum inner width of at least about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, about 2.5 inches, about 2.75 inches, or about 3 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a maximum inner width of at most about 0.5 inches, about 0.75 inches, about 1 inch, about 1.25 inches, about 1.5 inches, about 1.75 inches, about 2 inches, about 2.25 inches, about 2.5 inches, about 2.75 inches, or about 3 inches. 
     Optionally, in this or any other embodiment, the device of the penile constriction system has an inferior height, wherein the inferior height is measured as a normal distance between a center point, and the inferior side of the bridge, wherein the center point comprises the midpoint of the maximum inner width. Optionally, in this or any other embodiment, the device of the penile constriction system has an inferior height of about 0.25 inches to about 1 inch. Optionally, in this or any other embodiment, the device of the penile constriction system has an inferior height of at least about 0.25 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has an inferior height of at most about 1 inch. Optionally, in this or any other embodiment, the device of the penile constriction system has an inferior height of about 0.25 inches to about 0.3 inches, about 0.25 inches to about 0.35 inches, about 0.25 inches to about 0.4 inches, about 0.25 inches to about 0.45 inches, about 0.25 inches to about 0.5 inches, about 0.25 inches to about 0.6 inches, about 0.25 inches to about 0.7 inches, about 0.25 inches to about 0.8 inches, about 0.25 inches to about 0.9 inches, about 0.25 inches to about 1 inch, about 0.3 inches to about 0.35 inches, about 0.3 inches to about 0.4 inches, about 0.3 inches to about 0.45 inches, about 0.3 inches to about 0.5 inches, about 0.3 inches to about 0.6 inches, about 0.3 inches to about 0.7 inches, about 0.3 inches to about 0.8 inches, about 0.3 inches to about 0.9 inches, about 0.3 inches to about 1 inch, about 0.35 inches to about 0.4 inches, about 0.35 inches to about 0.45 inches, about 0.35 inches to about 0.5 inches, about 0.35 inches to about 0.6 inches, about 0.35 inches to about 0.7 inches, about 0.35 inches to about 0.8 inches, about 0.35 inches to about 0.9 inches, about 0.35 inches to about 1 inch, about 0.4 inches to about 0.45 inches, about 0.4 inches to about 0.5 inches, about 0.4 inches to about 0.6 inches, about 0.4 inches to about 0.7 inches, about 0.4 inches to about 0.8 inches, about 0.4 inches to about 0.9 inches, about 0.4 inches to about 1 inch, about 0.45 inches to about 0.5 inches, about 0.45 inches to about 0.6 inches, about 0.45 inches to about 0.7 inches, about 0.45 inches to about 0.8 inches, about 0.45 inches to about 0.9 inches, about 0.45 inches to about 1 inch, about 0.5 inches to about 0.6 inches, about 0.5 inches to about 0.7 inches, about 0.5 inches to about 0.8 inches, about 0.5 inches to about 0.9 inches, about 0.5 inches to about 1 inch, about 0.6 inches to about 0.7 inches, about 0.6 inches to about 0.8 inches, about 0.6 inches to about 0.9 inches, about 0.6 inches to about 1 inch, about 0.7 inches to about 0.8 inches, about 0.7 inches to about 0.9 inches, about 0.7 inches to about 1 inch, about 0.8 inches to about 0.9 inches, about 0.8 inches to about 1 inch, or about 0.9 inches to about 1 inch. Optionally, in this or any other embodiment, the device of the penile constriction system has an inferior height of about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, about 0.8 inches, about 0.9 inches, or about 1 inch. Optionally, in this or any other embodiment, the device of the penile constriction system has an inferior height of at least about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, about 0.8 inches, about 0.9 inches, or about 1 inch. Optionally, in this or any other embodiment, the device of the penile constriction system has an inferior height of at most about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, about 0.8 inches, about 0.9 inches, or about 1 inch. 
     Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is about 0.3:1 to about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is at least about 0.2:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is at most about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is about 0.2:1 to about 0.25:1, about 0.2:1 to about 0.3:1, about 0.2:1 to about 0.35:1, about 0.2:1 to about 0.4:1, about 0.2:1 to about 0.5:1, about 0.2:1 to about 0.6:1, about 0.2:1 to about 0.7:1, about 0.2:1 to about 0.8:1, about 0.2:1 to about 0.9:1, about 0.25:1 to about 0.3:1, about 0.25:1 to about 0.35:1, about 0.25:1 to about 0.4:1, about 0.25:1 to about 0.5:1, about 0.25:1 to about 0.6:1, about 0.25:1 to about 0.7:1, about 0.25:1 to about 0.8:1, about 0.25:1 to about 0.9:1, about 0.3:1 to about 0.35:1, about 0.3:1 to about 0.4:1, about 0.3:1 to about 0.5:1, about 0.3:1 to about 0.6:1, about 0.3:1 to about 0.7:1, about 0.3:1 to about 0.8:1, about 0.3:1 to about 0.9:1, about 0.35:1 to about 0.4:1, about 0.35:1 to about 0.5:1, about 0.35:1 to about 0.6:1, about 0.35:1 to about 0.7:1, about 0.35:1 to about 0.8:1, about 0.35:1 to about 0.9:1, about 0.4:1 to about 0.5:1, about 0.4:1 to about 0.6:1, about 0.4:1 to about 0.7:1, about 0.4:1 to about 0.8:1, about 0.4:1 to about 0.9:1, about 0.5:1 to about 0.6:1, about 0.5:1 to about 0.7:1, about 0.5:1 to about 0.8:1, about 0.5:1 to about 0.9:1, about 0.6:1 to about 0.7:1, about 0.6:1 to about 0.8:1, about 0.6:1 to about 0.9:1, about 0.7:1 to about 0.8:1, about 0.7:1 to about 0.9:1, or about 0.8:1 to about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.5:1, about 0.6:1, about 0.7:1, about 0.8:1, or about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is at least about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.5:1, about 0.6:1, about 0.7:1, about 0.8:1, or about 0.9:1. Optionally, in this or any other embodiment, a ratio between the constriction gap width and the maximum inner width is at most about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.5:1, about 0.6:1, about 0.7:1, about 0.8:1, or about 0.9:1. 
     Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is about 0.7:1 to about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is at least about 0.7:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is at most about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is about 0.7:1 to about 0.725:1, about 0.7:1 to about 0.75:1, about 0.7:1 to about 0.775:1, about 0.7:1 to about 0.8:1, about 0.7:1 to about 0.825:1, about 0.7:1 to about 0.85:1, about 0.7:1 to about 0.875:1, about 0.7:1 to about 0.9:1, about 0.7:1 to about 0.925:1, about 0.7:1 to about 0.95:1, about 0.7:1 to about 0.99:1, about 0.725:1 to about 0.75:1, about 0.725:1 to about 0.775:1, about 0.725:1 to about 0.8:1, about 0.725:1 to about 0.825:1, about 0.725:1 to about 0.85:1, about 0.725:1 to about 0.875:1, about 0.725:1 to about 0.9:1, about 0.725:1 to about 0.925:1, about 0.725:1 to about 0.95:1, about 0.725:1 to about 0.99:1, about 0.75:1 to about 0.775:1, about 0.75:1 to about 0.8:1, about 0.75:1 to about 0.825:1, about 0.75:1 to about 0.85:1, about 0.75:1 to about 0.875:1, about 0.75:1 to about 0.9:1, about 0.75:1 to about 0.925:1, about 0.75:1 to about 0.95:1, about 0.75:1 to about 0.99:1, about 0.775:1 to about 0.8:1, about 0.775:1 to about 0.825:1, about 0.775:1 to about 0.85:1, about 0.775:1 to about 0.875:1, about 0.775:1 to about 0.9:1, about 0.775:1 to about 0.925:1, about 0.775:1 to about 0.95:1, about 0.775:1 to about 0.99:1, about 0.8:1 to about 0.825:1, about 0.8:1 to about 0.85:1, about 0.8:1 to about 0.875:1, about 0.8:1 to about 0.9:1, about 0.8:1 to about 0.925:1, about 0.8:1 to about 0.95:1, about 0.8:1 to about 0.99:1, about 0.825:1 to about 0.85:1, about 0.825:1 to about 0.875:1, about 0.825:1 to about 0.9:1, about 0.825:1 to about 0.925:1, about 0.825:1 to about 0.95:1, about 0.825:1 to about 0.99:1, about 0.85:1 to about 0.875:1, about 0.85:1 to about 0.9:1, about 0.85:1 to about 0.925:1, about 0.85:1 to about 0.95:1, about 0.85:1 to about 0.99:1, about 0.875:1 to about 0.9:1, about 0.875:1 to about 0.925:1, about 0.875:1 to about 0.95:1, about 0.875:1 to about 0.99:1, about 0.9:1 to about 0.925:1, about 0.9:1 to about 0.95:1, about 0.9:1 to about 0.99:1, about 0.925:1 to about 0.95:1, about 0.925:1 to about 0.99:1, or about 0.95:1 to about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is about 0.7:1, about 0.725:1, about 0.75:1, about 0.775:1, about 0.8:1, about 0.825:1, about 0.85:1, about 0.875:1, about 0.9:1, about 0.925:1, about 0.95:1, or about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is at least about 0.7:1, about 0.725:1, about 0.75:1, about 0.775:1, about 0.8:1, about 0.825:1, about 0.85:1, about 0.875:1, about 0.9:1, about 0.925:1, about 0.95:1, or about 0.99:1. Optionally, in this or any other embodiment, a ratio between the constriction height and the maximum inner width is at most about 0.7:1, about 0.725:1, about 0.75:1, about 0.775:1, about 0.8:1, about 0.825:1, about 0.85:1, about 0.875:1, about 0.9:1, about 0.925:1, about 0.95:1, or about 0.99:1. 
     Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is about 0.15:1 to about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is at least about 0.15:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is at most about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is about 0.15:1 to about 0.2:1, about 0.15:1 to about 0.25:1, about 0.15:1 to about 0.3:1, about 0.15:1 to about 0.35:1, about 0.15:1 to about 0.4:1, about 0.15:1 to about 0.45:1, about 0.15:1 to about 0.5:1, about 0.15:1 to about 0.55:1, about 0.15:1 to about 0.6:1, about 0.2:1 to about 0.25:1, about 0.2:1 to about 0.3:1, about 0.2:1 to about 0.35:1, about 0.2:1 to about 0.4:1, about 0.2:1 to about 0.45:1, about 0.2:1 to about 0.5:1, about 0.2:1 to about 0.55:1, about 0.2:1 to about 0.6:1, about 0.25:1 to about 0.3:1, about 0.25:1 to about 0.35:1, about 0.25:1 to about 0.4:1, about 0.25:1 to about 0.45:1, about 0.25:1 to about 0.5:1, about 0.25:1 to about 0.55:1, about 0.25:1 to about 0.6:1, about 0.3:1 to about 0.35:1, about 0.3:1 to about 0.4:1, about 0.3:1 to about 0.45:1, about 0.3:1 to about 0.5:1, about 0.3:1 to about 0.55:1, about 0.3:1 to about 0.6:1, about 0.35:1 to about 0.4:1, about 0.35:1 to about 0.45:1, about 0.35:1 to about 0.5:1, about 0.35:1 to about 0.55:1, about 0.35:1 to about 0.6:1, about 0.4:1 to about 0.45:1, about 0.4:1 to about 0.5:1, about 0.4:1 to about 0.55:1, about 0.4:1 to about 0.6:1, about 0.45:1 to about 0.5:1, about 0.45:1 to about 0.55:1, about 0.45:1 to about 0.6:1, about 0.5:1 to about 0.55:1, about 0.5:1 to about 0.6:1, or about 0.55:1 to about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is about 0.15:1, about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.45:1, about 0.5:1, about 0.55:1, or about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is at least about 0.15:1, about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.45:1, about 0.5:1, about 0.55:1, or about 0.6:1. Optionally, in this or any other embodiment, a ratio between the inferior height and the maximum inner width is at most 0.15:1, about 0.2:1, about 0.25:1, about 0.3:1, about 0.35:1, about 0.4:1, about 0.45:1, about 0.5:1, about 0.55:1, or about 0.6:1. 
     Optionally, in this or any other embodiment, the arched rod has a thickness, wherein the thickness is measured as a maximum normal cross-sectional width of at least a portion of at least one of the first arm, the second arm, and the bridge. Optionally, in this or any other embodiment, the device of the penile constriction system has a thickness of about 0.125 inches to about 0.8 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a thickness of at least about 0.125 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a thickness of at most about 0.8 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a thickness of about 0.125 inches to about 0.15 inches, about 0.125 inches to about 0.2 inches, about 0.125 inches to about 0.25 inches, about 0.125 inches to about 0.3 inches, about 0.125 inches to about 0.35 inches, about 0.125 inches to about 0.4 inches, about 0.125 inches to about 0.45 inches, about 0.125 inches to about 0.5 inches, about 0.125 inches to about 0.6 inches, about 0.125 inches to about 0.7 inches, about 0.125 inches to about 0.8 inches, about 0.15 inches to about 0.2 inches, about 0.15 inches to about 0.25 inches, about 0.15 inches to about 0.3 inches, about 0.15 inches to about 0.35 inches, about 0.15 inches to about 0.4 inches, about 0.15 inches to about 0.45 inches, about 0.15 inches to about 0.5 inches, about 0.15 inches to about 0.6 inches, about 0.15 inches to about 0.7 inches, about 0.15 inches to about 0.8 inches, about 0.2 inches to about 0.25 inches, about 0.2 inches to about 0.3 inches, about 0.2 inches to about 0.35 inches, about 0.2 inches to about 0.4 inches, about 0.2 inches to about 0.45 inches, about 0.2 inches to about 0.5 inches, about 0.2 inches to about 0.6 inches, about 0.2 inches to about 0.7 inches, about 0.2 inches to about 0.8 inches, about 0.25 inches to about 0.3 inches, about 0.25 inches to about 0.35 inches, about 0.25 inches to about 0.4 inches, about 0.25 inches to about 0.45 inches, about 0.25 inches to about 0.5 inches, about 0.25 inches to about 0.6 inches, about 0.25 inches to about 0.7 inches, about 0.25 inches to about 0.8 inches, about 0.3 inches to about 0.35 inches, about 0.3 inches to about 0.4 inches, about 0.3 inches to about 0.45 inches, about 0.3 inches to about 0.5 inches, about 0.3 inches to about 0.6 inches, about 0.3 inches to about 0.7 inches, about 0.3 inches to about 0.8 inches, about 0.35 inches to about 0.4 inches, about 0.35 inches to about 0.45 inches, about 0.35 inches to about 0.5 inches, about 0.35 inches to about 0.6 inches, about 0.35 inches to about 0.7 inches, about 0.35 inches to about 0.8 inches, about 0.4 inches to about 0.45 inches, about 0.4 inches to about 0.5 inches, about 0.4 inches to about 0.6 inches, about 0.4 inches to about 0.7 inches, about 0.4 inches to about 0.8 inches, about 0.45 inches to about 0.5 inches, about 0.45 inches to about 0.6 inches, about 0.45 inches to about 0.7 inches, about 0.45 inches to about 0.8 inches, about 0.5 inches to about 0.6 inches, about 0.5 inches to about 0.7 inches, about 0.5 inches to about 0.8 inches, about 0.6 inches to about 0.7 inches, about 0.6 inches to about 0.8 inches, or about 0.7 inches to about 0.8 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a thickness of about 0.125 inches, about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a thickness of at least about 0.125 inches, about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. Optionally, in this or any other embodiment, the device of the penile constriction system has a thickness of at most about 0.125 inches, about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. 
     Optionally, in this or any other embodiment, the first terminus diverges from the constriction region to form a first elbow, and wherein the second terminus diverges from the constriction region to form a second elbow. Optionally, in this or any other embodiment, the first elbow and the second elbow are configured to removably affix to a band. 
     Optionally, in this or any other embodiment, the compression region comprises: a first dorsal vein protrusion comprising: a first dorsal apex; and a first dorsal height measured as a first minimum normal distance between the first dorsal apex and a first lateral edge of the first dorsal vein protrusion where the first dorsal vein protrusion rises from the inferior side of the bridge; a second dorsal vein protrusion comprising: a second dorsal apex; and a second dorsal height measured as a second minimum normal distance between the second dorsal apex and a second lateral edge of the second dorsal vein protrusion where the second dorsal vein protrusion rises from the inferior side of the bridge; and a dorsal vein valley between the first dorsal vein apex and the second dorsal vein apex. 
     Optionally, in this or any other embodiment, the first dorsal vein protrusion, the dorsal vein valley, and the second dorsal vein protrusion are arranged sequentially within the compression region in a direction along the bridge from the first arm to the second arm. 
     Optionally, in this or any other embodiment, the device of the penile constriction system comprises a dorsal vein valley distance between the first dorsal apex and the second dorsal apex. Optionally, in this or any other embodiment, the dorsal vein valley distance is about 0.15 inches to about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is at least about 0.15 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is at most about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is about 0.15 inches to about 0.2 inches, about 0.15 inches to about 0.25 inches, about 0.15 inches to about 0.3 inches, about 0.15 inches to about 0.35 inches, about 0.15 inches to about 0.4 inches, about 0.15 inches to about 0.45 inches, about 0.15 inches to about 0.5 inches, about 0.15 inches to about 0.55 inches, about 0.15 inches to about 0.6 inches, about 0.15 inches to about 0.65 inches, about 0.15 inches to about 0.75 inches, about 0.2 inches to about 0.25 inches, about 0.2 inches to about 0.3 inches, about 0.2 inches to about 0.35 inches, about 0.2 inches to about 0.4 inches, about 0.2 inches to about 0.45 inches, about 0.2 inches to about 0.5 inches, about 0.2 inches to about 0.55 inches, about 0.2 inches to about 0.6 inches, about 0.2 inches to about 0.65 inches, about 0.2 inches to about 0.75 inches, about 0.25 inches to about 0.3 inches, about 0.25 inches to about 0.35 inches, about 0.25 inches to about 0.4 inches, about 0.25 inches to about 0.45 inches, about 0.25 inches to about 0.5 inches, about 0.25 inches to about 0.55 inches, about 0.25 inches to about 0.6 inches, about 0.25 inches to about 0.65 inches, about 0.25 inches to about 0.75 inches, about 0.3 inches to about 0.35 inches, about 0.3 inches to about 0.4 inches, about 0.3 inches to about 0.45 inches, about 0.3 inches to about 0.5 inches, about 0.3 inches to about 0.55 inches, about 0.3 inches to about 0.6 inches, about 0.3 inches to about 0.65 inches, about 0.3 inches to about 0.75 inches, about 0.35 inches to about 0.4 inches, about 0.35 inches to about 0.45 inches, about 0.35 inches to about 0.5 inches, about 0.35 inches to about 0.55 inches, about 0.35 inches to about 0.6 inches, about 0.35 inches to about 0.65 inches, about 0.35 inches to about 0.75 inches, about 0.4 inches to about 0.45 inches, about 0.4 inches to about 0.5 inches, about 0.4 inches to about 0.55 inches, about 0.4 inches to about 0.6 inches, about 0.4 inches to about 0.65 inches, about 0.4 inches to about 0.75 inches, about 0.45 inches to about 0.5 inches, about 0.45 inches to about 0.55 inches, about 0.45 inches to about 0.6 inches, about 0.45 inches to about 0.65 inches, about 0.45 inches to about 0.75 inches, about 0.5 inches to about 0.55 inches, about 0.5 inches to about 0.6 inches, about 0.5 inches to about 0.65 inches, about 0.5 inches to about 0.75 inches, about 0.55 inches to about 0.6 inches, about 0.55 inches to about 0.65 inches, about 0.55 inches to about 0.75 inches, about 0.6 inches to about 0.65 inches, about 0.6 inches to about 0.75 inches, or about 0.65 inches to about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.65 inches, or about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is at least about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.65 inches, or about 0.75 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is at most about 0.15 inches, about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.65 inches, or about 0.75 inches. 
     Optionally, in this or any other embodiment, the device of the penile constriction system comprises a compression region width between the first lateral edge and the second lateral edge. Optionally, in this or any other embodiment, the compression region width is about 0.2 inches to about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is at least about 0.2 inches. Optionally, in this or any other embodiment, the compression region width is at most about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is about 0.2 inches to about 0.25 inches, about 0.2 inches to about 0.3 inches, about 0.2 inches to about 0.35 inches, about 0.2 inches to about 0.4 inches, about 0.2 inches to about 0.45 inches, about 0.2 inches to about 0.5 inches, about 0.2 inches to about 0.55 inches, about 0.2 inches to about 0.6 inches, about 0.2 inches to about 0.7 inches, about 0.2 inches to about 0.8 inches, about 0.25 inches to about 0.3 inches, about 0.25 inches to about 0.35 inches, about 0.25 inches to about 0.4 inches, about 0.25 inches to about 0.45 inches, about 0.25 inches to about 0.5 inches, about 0.25 inches to about 0.55 inches, about 0.25 inches to about 0.6 inches, about 0.25 inches to about 0.7 inches, about 0.25 inches to about 0.8 inches, about 0.3 inches to about 0.35 inches, about 0.3 inches to about 0.4 inches, about 0.3 inches to about 0.45 inches, about 0.3 inches to about 0.5 inches, about 0.3 inches to about 0.55 inches, about 0.3 inches to about 0.6 inches, about 0.3 inches to about 0.7 inches, about 0.3 inches to about 0.8 inches, about 0.35 inches to about 0.4 inches, about 0.35 inches to about 0.45 inches, about 0.35 inches to about 0.5 inches, about 0.35 inches to about 0.55 inches, about 0.35 inches to about 0.6 inches, about 0.35 inches to about 0.7 inches, about 0.35 inches to about 0.8 inches, about 0.4 inches to about 0.45 inches, about 0.4 inches to about 0.5 inches, about 0.4 inches to about 0.55 inches, about 0.4 inches to about 0.6 inches, about 0.4 inches to about 0.7 inches, about 0.4 inches to about 0.8 inches, about 0.45 inches to about 0.5 inches, about 0.45 inches to about 0.55 inches, about 0.45 inches to about 0.6 inches, about 0.45 inches to about 0.7 inches, about 0.45 inches to about 0.8 inches, about 0.5 inches to about 0.55 inches, about 0.5 inches to about 0.6 inches, about 0.5 inches to about 0.7 inches, about 0.5 inches to about 0.8 inches, about 0.55 inches to about 0.6 inches, about 0.55 inches to about 0.7 inches, about 0.55 inches to about 0.8 inches, about 0.6 inches to about 0.7 inches, about 0.6 inches to about 0.8 inches, or about 0.7 inches to about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is at least about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is at most about 0.2 inches, about 0.25 inches, about 0.3 inches, about 0.35 inches, about 0.4 inches, about 0.45 inches, about 0.5 inches, about 0.55 inches, about 0.6 inches, about 0.7 inches, or about 0.8 inches. 
     Optionally, in this or any other embodiment, the compression region within the dorsal vein valley at a center of the dorsal vein valley is superior to or has a same height relative to the first lateral edge as the first minimum normal distance or relative to the second lateral edge as the second minimum normal distance, or both. Optionally, in this or any other embodiment, the compression region at the center of the dorsal vein valley is inferior to the first lateral edge, the second lateral edge, or both. 
     Optionally, in this or any other embodiment, the device of the penile constriction system further comprises a plurality of friction protrusions on a superior side of the bridge. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises about 2 protrusions to about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises at least about 2 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises at most about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises about 2 protrusions to about 4 protrusions, about 2 protrusions to about 6 protrusions, about 2 protrusions to about 8 protrusions, about 2 protrusions to about 10 protrusions, about 2 protrusions to about 15 protrusions, about 2 protrusions to about 20 protrusions, about 2 protrusions to about 25 protrusions, about 2 protrusions to about 30 protrusions, about 2 protrusions to about 40 protrusions, about 2 protrusions to about 50 protrusions, about 2 protrusions to about 60 protrusions, about 4 protrusions to about 6 protrusions, about 4 protrusions to about 8 protrusions, about 4 protrusions to about 10 protrusions, about 4 protrusions to about 15 protrusions, about 4 protrusions to about 20 protrusions, about 4 protrusions to about 25 protrusions, about 4 protrusions to about 30 protrusions, about 4 protrusions to about 40 protrusions, about 4 protrusions to about 50 protrusions, about 4 protrusions to about 60 protrusions, about 6 protrusions to about 8 protrusions, about 6 protrusions to about 10 protrusions, about 6 protrusions to about 15 protrusions, about 6 protrusions to about 20 protrusions, about 6 protrusions to about 25 protrusions, about 6 protrusions to about 30 protrusions, about 6 protrusions to about 40 protrusions, about 6 protrusions to about 50 protrusions, about 6 protrusions to about 60 protrusions, about 8 protrusions to about 10 protrusions, about 8 protrusions to about 15 protrusions, about 8 protrusions to about 20 protrusions, about 8 protrusions to about 25 protrusions, about 8 protrusions to about 30 protrusions, about 8 protrusions to about 40 protrusions, about 8 protrusions to about 50 protrusions, about 8 protrusions to about 60 protrusions, about 10 protrusions to about 15 protrusions, about 10 protrusions to about 20 protrusions, about 10 protrusions to about 25 protrusions, about 10 protrusions to about 30 protrusions, about 10 protrusions to about 40 protrusions, about 10 protrusions to about 50 protrusions, about 10 protrusions to about 60 protrusions, about 15 protrusions to about 20 protrusions, about 15 protrusions to about 25 protrusions, about 15 protrusions to about 30 protrusions, about 15 protrusions to about 40 protrusions, about 15 protrusions to about 50 protrusions, about 15 protrusions to about 60 protrusions, about 20 protrusions to about 25 protrusions, about 20 protrusions to about 30 protrusions, about 20 protrusions to about 40 protrusions, about 20 protrusions to about 50 protrusions, about 20 protrusions to about 60 protrusions, about 25 protrusions to about 30 protrusions, about 25 protrusions to about 40 protrusions, about 25 protrusions to about 50 protrusions, about 25 protrusions to about 60 protrusions, about 30 protrusions to about 40 protrusions, about 30 protrusions to about 50 protrusions, about 30 protrusions to about 60 protrusions, about 40 protrusions to about 50 protrusions, about 40 protrusions to about 60 protrusions, or about 50 protrusions to about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises about 2 protrusions, about 4 protrusions, about 6 protrusions, about 8 protrusions, about 10 protrusions, about 15 protrusions, about 20 protrusions, about 25 protrusions, about 30 protrusions, about 40 protrusions, about 50 protrusions, or about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises at most about 2 protrusions, about 4 protrusions, about 6 protrusions, about 8 protrusions, about 10 protrusions, about 15 protrusions, about 20 protrusions, about 25 protrusions, about 30 protrusions, about 40 protrusions, about 50 protrusions, or about 60 protrusions. Optionally, in this or any other embodiment, the plurality of friction protrusions comprises at least about 2 protrusions, about 4 protrusions, about 6 protrusions, about 8 protrusions, about 10 protrusions, about 15 protrusions, about 20 protrusions, about 25 protrusions, about 30 protrusions, about 40 protrusions, about 50 protrusions, or about 60 protrusions. 
     Optionally, in this or any other embodiment, the friction protrusions have a height of about 0.01 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a height of about 0.01 inches to about 0.02 inches, about 0.01 inches to about 0.03 inches, about 0.01 inches to about 0.04 inches, about 0.01 inches to about 0.05 inches, about 0.01 inches to about 0.06 inches, about 0.02 inches to about 0.03 inches, about 0.02 inches to about 0.04 inches, about 0.02 inches to about 0.05 inches, about 0.02 inches to about 0.06 inches, about 0.03 inches to about 0.04 inches, about 0.03 inches to about 0.05 inches, about 0.03 inches to about 0.06 inches, about 0.04 inches to about 0.05 inches, about 0.04 inches to about 0.06 inches, or about 0.05 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a height of about 0.01 inches, about 0.02 inches, about 0.03 inches, about 0.04 inches, about 0.05 inches, or about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a height of at least about 0.01 inches, about 0.02 inches, about 0.03 inches, about 0.04 inches, or about 0.05 inches. Optionally, in this or any other embodiment, the friction protrusions have a height of at most about 0.02 inches, about 0.03 inches, about 0.04 inches, about 0.05 inches, or about 0.06 inches. 
     Optionally, in this or any other embodiment, the friction protrusions have a width of about 0.01 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a width of about 0.01 inches to about 0.02 inches, about 0.01 inches to about 0.03 inches, about 0.01 inches to about 0.04 inches, about 0.01 inches to about 0.05 inches, about 0.01 inches to about 0.06 inches, about 0.02 inches to about 0.03 inches, about 0.02 inches to about 0.04 inches, about 0.02 inches to about 0.05 inches, about 0.02 inches to about 0.06 inches, about 0.03 inches to about 0.04 inches, about 0.03 inches to about 0.05 inches, about 0.03 inches to about 0.06 inches, about 0.04 inches to about 0.05 inches, about 0.04 inches to about 0.06 inches, or about 0.05 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a width of about 0.01 inches, about 0.02 inches, about 0.03 inches, about 0.04 inches, about 0.05 inches, or about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusions have a width of at least about 0.01 inches, about 0.02 inches, about 0.03 inches, about 0.04 inches, or about 0.05 inches. Optionally, in this or any other embodiment, the friction protrusions have a width of at most about 0.02 inches, about 0.03 inches, about 0.04 inches, about 0.05 inches, or about 0.06 inches. 
     Optionally, in this or any other embodiment, the arched rod comprises a cover substantially surrounding a frame, wherein a frame modulus of elasticity of the frame is higher than a cover modulus of elasticity of the cover. 
     These and other embodiments are described in further detail in the following description related to the appended drawing figures. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The novel features of the disclosure are set forth with particularity in the appended claims. A better understanding of the features and advantages of the present disclosure will be obtained by reference to the following detailed description that sets forth illustrative embodiments, in which the principles of the disclosure are utilized, and the accompanying drawings of which: 
         FIG. 1  shows a perspective view of a non-limiting example of a first penile constriction device, per an embodiment herein; 
         FIG. 2A  shows a front view of a non-limiting example of the penile constriction device of  FIG. 1 ; 
         FIG. 2B  shows a side cross-sectional view of a non-limiting example of the penile constriction device of  FIG. 1 ; 
         FIG. 2C  shows an alternative front view of a non-limiting example of the penile constriction device of  FIG. 1 ; 
         FIG. 3A  shows a detailed front view of the compression region of a non-limiting example of the penile constriction device of  FIG. 1 ; 
         FIG. 3B  shows a detailed bottom view of the compression region of a non-limiting example of the penile constriction device of  FIG. 1 ; 
         FIG. 4  shows a top view of the friction protrusions of a non-limiting example of the penile constriction device of  FIG. 1 ; 
         FIG. 5  shows a side cross-sectioned view of the friction protrusions and compression region of the penile constriction device of  FIG. 1 ; 
         FIG. 6  shows a front view of a non-limiting example of a second penile constriction device, per an embodiment here; 
         FIG. 7  shows a front view of a non-limiting example of a third penile constriction device, per an embodiment herein; 
         FIG. 8  shows a front view of a non-limiting example of a fourth penile constriction device, per an embodiment herein; 
         FIG. 9  shows a front view of a non-limiting example of a fifth penile constriction device, per an embodiment herein; 
         FIG. 10A  shows a front cross-sectioned view of a non-limiting example of a penile constriction device comprising a frame and a cover, per an embodiment herein; 
         FIG. 10B  shows a perspective view of a non-limiting example of the frame of  FIG. 10A ; 
         FIG. 10C  shows a front view of a non-limiting example of the frame of  FIG. 10A ; 
         FIG. 11A  shows a front cross-sectioned view of an alternative non-limiting example of a penile constriction device comprising a frame and a cover, per an embodiment herein; 
         FIG. 11B  shows a perspective view of the manufacturing marks of penile constriction device of  FIG. 11A ; 
         FIG. 11C  shows a front view of the manufacturing marks of penile constriction device of  FIG. 11A , 
         FIG. 11D  shows a back view of the manufacturing marks of penile constriction device of  FIG. 11A ; 
         FIG. 11E  shows a top view of the manufacturing marks of penile constriction device of  FIG. 11A ; 
         FIG. 11F  shows a bottom view of the manufacturing marks of penile constriction device of  FIG. 11A ; 
         FIG. 11G  shows a side view of the manufacturing marks of penile constriction device of  FIG. 11A ; 
         FIG. 1111  shows a side cross-sectioned view of the manufacturing marks of penile constriction device of  FIG. 11A ; 
         FIG. 11J  shows a perspective view of the frame of a non-limiting example of the frame of  FIG. 11A ; 
         FIG. 11K  shows a front view of the frame of a non-limiting example of the frame of  FIG. 11A ; 
         FIG. 11L  shows a front view of the frame of a non-limiting example of the frame of  FIG. 11A ; 
         FIG. 12A  shows a front cross-sectioned view of another alternative non-limiting example of a penile constriction device comprising a frame and a cover, per an embodiment herein; 
         FIG. 12B  shows a perspective view of the manufacturing marks of penile constriction device of  FIG. 12A ; 
         FIG. 12C  shows a front view of the manufacturing marks of penile constriction device of  FIG. 12A ; 
         FIG. 12D  shows a back view of the manufacturing marks of penile constriction device of  FIG. 12A ; 
         FIG. 12E  shows a top view of the manufacturing marks of penile constriction device of  FIG. 12A ; 
         FIG. 12F  shows a bottom view of the manufacturing marks of penile constriction device of  FIG. 12A ; 
         FIG. 12G  shows a side view of the manufacturing marks of penile constriction device of  FIG. 12A ; 
         FIG. 12H  shows a side cross-sectioned view of the manufacturing marks of penile constriction device of  FIG. 12A ; 
         FIG. 12J  shows a perspective view of the frame of a non-limiting example of the frame of  FIG. 12A ; 
         FIG. 12K  shows a front view of the frame of a non-limiting example of the frame of  FIG. 12A ; 
         FIG. 12L  shows a front view of the frame of a non-limiting example of the frame of  FIG. 12A ; 
         FIG. 13  shows a front cross-sectioned view of the veins and arteries in a human penis; 
         FIG. 14  shows a front cross-sectioned view of a non-limiting example of a penile constriction device on a human penis, per an embodiment herein; 
         FIG. 15A  shows a front view of a non-limiting example of a penile constriction system comprising an exemplary penile constriction device and a band, per an embodiment herein; 
         FIG. 15B  shows a front view of a non-limiting example of a penile constriction system comprising an exemplary penile constriction device and a high tension band, per an embodiment herein; 
         FIG. 16A  shows a perspective view of a non-limiting example of a penile constriction device on a flaccid human penis, per an embodiment herein; 
         FIG. 16B  shows a perspective view of a non-limiting example of a penile constriction device and a band on a flaccid human penis, per an embodiment herein; 
         FIG. 16C  shows a perspective view of a non-limiting example of a penile constriction device and a band on an erect human penis, per an embodiment herein; 
         FIG. 17  shows a front view of a penile constriction device in the prior art; 
         FIG. 18  shows a front cross-sectioned view of the prior art penile constriction device in  FIG. 17  on a human penis; 
         FIG. 19  shows a front view of a non-limiting example of a penile constriction device having friction protrusions but no first dorsal vein protrusion or second dorsal vein protrusion; per an embodiment herein; 
         FIG. 20  shows a front view of a non-limiting example of a penile constriction device having the first dorsal vein protrusion and second dorsal vein protrusion, but no friction protrusions; per an embodiment herein; 
         FIG. 21  shows a front view of a non-limiting example of a penile constriction device having no first dorsal vein protrusion, second dorsal vein protrusion, or friction protrusions; per an embodiment herein; and 
         FIG. 22  shows a front view of a non-limiting example of a penile constriction device having a manufacturing mark; per an embodiment herein; 
         FIG. 23  shows a top view image of the penile constriction device of  FIG. 22 ; per an embodiment herein; 
         FIG. 24  shows a right side cross-sectioned view image of the penile constriction device of  FIG. 22 ; per an embodiment herein; 
         FIG. 25  shows a first exemplary exercise guide; per an embodiment herein; 
         FIG. 26  shows a second exemplary exercise guide; per an embodiment herein; 
         FIG. 27  shows a third exemplary exercise guide; per an embodiment herein; 
         FIG. 28  shows a fourth exemplary exercise guide; per an embodiment herein; 
         FIG. 29  shows a fifth exemplary exercise guide; per an embodiment herein; 
         FIG. 30  shows a sixth exemplary exercise guide; per an embodiment herein; 
         FIG. 31  shows a first page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 32  shows a second page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 33  shows a third page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 34  shows a fourth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 35  shows a fifth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 36  shows a sixth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 37  shows a seventh page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 38  shows an eighth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 39  shows a ninth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 40  shows a tenth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 41  shows an eleventh page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 42  shows a twelfth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 43  shows a thirteenth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 44  shows a fourteenth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 45  shows a fifteenth page of an exemplary instruction booklet; per an embodiment herein; 
         FIG. 46  shows a sixteenth page of an exemplary instruction booklet; per an embodiment herein. 
         FIG. 47  shows a perspective image of a non-limiting example of a first size of a primary band of the penile constriction device herein, per an embodiment herein; 
         FIG. 48  shows a perspective view image of a non-limiting example of a third size of a primary band of the penile constriction device herein, per an embodiment herein; 
         FIG. 49  shows a perspective view illustration of a non-limiting example of a primary band of the penile constriction device herein, per an embodiment herein; 
         FIG. 50A  shows a top view illustration of a non-limiting example of a primary band of the penile constriction device herein, per an embodiment herein; 
         FIG. 50B  shows a front view illustration of a non-limiting example of a primary band of the penile constriction device herein, per an embodiment herein; 
         FIG. 51  shows a perspective view illustration of a non-limiting example of a secondary band of the penile constriction device herein, per an embodiment herein; and 
         FIG. 52  shows a front view illustration of a non-limiting example of a secondary band of the penile constriction device herein, per an embodiment herein. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Specific embodiments of the disclosed system, method, and device will now be described with reference to the drawings. Nothing in this detailed description is intended to imply that any particular component, feature, or step is essential to the invention. 
     Penile Constriction Devices 
     Provided herein, per  FIGS. 1-12 , are exemplary embodiments of a penile constriction device.  FIG. 1  shows a perspective view of a non-limiting example of a first penile constriction device  100 . 
       FIG. 2A  shows a front view of a non-limiting example of the penile constriction device of  FIG. 1 . The device  100  comprises an arched rod  250  comprising a first arm  210 , a second arm  210 , and a bridge  230 . The first arm  210  comprises at least one of a first coupling end  211  and a first converging end  212 . The first converging end  212  comprises a first terminus  213 . Further, the second arm  220  comprises at least one of a second coupling end  221  and a second converging end  222 . The second converging  222  end has a second terminus  223 . Optionally, in this and other embodiments, the second terminus  223  is disconnected from the first terminus  213 . In other embodiments, the second terminus may be connected with the first terminus. In the present embodiment, the first converging end  212  and the second converging end  222  converge to form a constriction region  260 . The bridge  230  is generally disposed between the first arm  210  and the second arm  220 . Additionally, the bridge  230  connects the first coupling end  211  to the second coupling end  221 . Optionally, in this and other embodiments, the bridge  230  comprises a compression region  240 . The compression region  240  rises inferiorly from an inferior side of the bridge  230 . Optionally, in some embodiments, the device does not comprise the compression region. The bridge  230  further comprises a plurality of friction protrusions  231  on a superior side of the bridge  230 . Optionally, in other embodiments, the device does not comprise a plurality of friction protrusions 
       FIG. 2A  portrays the arched rod  250 , which optionally may comprise a curvilinear rod. Optionally, in this or any other embodiment, at least one of the first arm  210  and the second arm  220  is S-shaped. Alternatively, in this or any other embodiment, at least one of the first arm  210  and the second arm  220  is optionally C-shaped, J-shaped, L-shaped, U-shaped, or V-shaped. Optionally, in this or any other embodiment, the arched rod  250  has the shape of the Greek capital letter omega (a). Optionally, in this or any other embodiment, the arched rod  250  is U-shaped. In some embodiments, the first terminus  213  extends beyond the second terminus  223 . In some embodiments, the second terminus  223  extends beyond the first terminus  213 . In some embodiments, the first terminus  213  and the second terminus  223  have the same shape. In some embodiments, the first terminus  213  and the second terminus  223  have the different shapes. As shown in  FIG. 2A , the first terminus  213  and the second terminus  223  can be rounded. Alternatively, in some embodiments, at least one of the first terminus  213  and the second terminus  223  are tapered, pointed, twisted, pinched, flat, or have any other geometrical shape. In some embodiments, the arms and terminus connect so the penile constriction device is an overall oval shape. 
     The first arm  210  and the second arm  220  extend from opposing ends of the bridge  230 . Optionally, in this or any other embodiment, at least one of the first arm  210  and the second arm  220  extends radially and transversely from the bridge  230 . Optionally, in this or any other embodiment, at least one of the first arm  210  and the second arm  220  extend downward relative to the superior side of the bridge  230 . Optionally, in this or any other embodiment, at least one of the first arm  210  and the second arm  220  extend radially and transversely downward relative to the superior side of the bridge  230 . Optionally, in this or any other embodiment, at least one of the first arm  210  below the first coupling end  211  and the second arm  220  extends radially and mesially below the second coupling end  221 . Optionally, in this or any other embodiment, at least one of the first arm  210  below the first coupling end  211  and the second arm  220  extends radially and medially below the second coupling end  221 . Optionally, in this or any other embodiment, at least one of the first arm  210  below the first coupling end  211  and the second arm  220  extends downward towards the constriction region  260  below the second coupling end  221 . Optionally, in this or any other embodiment, at least one of the first arm  210  below the first coupling end  211  and the second arm  220  below the second coupling end  221  extend radially, mesially, and downward towards the constriction region  260 . Optionally, in this or any other embodiment, at least one of the first arm  210  below the first coupling end  211  and the second arm  220  below the second coupling end  221  extend radially, medially and downward towards the constriction region  260 . 
     Optionally, in this or any other embodiment, the first arm  210  and the second arm  220  extend symmetrically from opposing ends of the bridge  230 . Optionally, in this or any other embodiment, at least one of the first arm  210  and the second arm  220  are symmetric about a center plane of the bridge  230 . Optionally, in this or any other embodiment, the arched rod  250  is symmetric about one or more planes. Optionally, in this or any other embodiment, the arched rod  250  is symmetric about two planes. Optionally, in this or any other embodiment, the arched rod  250  is symmetric about two perpendicular planes. Optionally, in this or any other embodiment, the arched rod  250  comprises a curvilinear rod. Optionally, in this or any other embodiment, the first arm  210  and the second arm  220  are asymmetric about the bridge  230 . Optionally, in this or any other embodiment, at least one of the first arm  210  and the second arm  220  are asymmetric about a center plane of the bridge  230 . Optionally, in this or any other embodiment, the arched rod  250  is asymmetric about one or more planes. 
     Optionally, in this or any other embodiment, at least one of the first arm and the second arm  220  extends radially and transversely below the constriction region  260 . Optionally, in this or any other embodiment, at least one of the first arm and the second arm  220  extends downward towards the first terminus  213  and the second terminus  223 , respectively, below the constriction region  260 . Optionally, in this or any other embodiment, at least one of the first arm and the second arm  220  extends radially, transversely, and downward towards the first terminus  213  and the second terminus  223 , respectively, below the constriction region  260 . 
     Optionally, in this and other embodiments, the penile constriction device may portray a mesial divergence of at least one of the first arm  210  and the second arm  220  from the bridge  230 . A first mesial divergence  215  may optionally form within the first coupling end  211  of the first arm  210  and a second mesial divergence  225  may optionally form within the second coupling end  221  of the second arm  220 , respectively. The transverse divergence of at least one of the first arm  210  and the second arm  220  from the constriction region  260  may forms a first elbow  214  within the first converging end  212  of the first arm  210  and a second elbow  224  within the second converging end  222  of the second arm  220 , respectively. 
     Per  FIG. 2A , the first coupling end  211 , the second coupling end  221 , the first converging end  212 , the second converging end  222 , the first terminus  213 , the second terminus  223 , the first mesial bend  215 , the second mesial bend  225 , the first elbow  214 , and the second elbow  224  is inferior to the superior side of the bridge  230 . Optionally, in this or any other embodiment, at least one of the first coupling end  211 , the second coupling end  221 , the first converging end  212 , the second converging end  222 , the first terminus  213 , the second terminus  223 , the first mesial bend  215 , the second mesial bend  225 , the first elbow  214 , and the second elbow  224  may be inferior to the inferior side of the bridge  230 . Optionally, in this or any other embodiment, at least one of the first coupling end  211 , the second coupling end  221 , the first converging end  212 , the second converging end  222 , the first terminus  213 , the second terminus  223 , the first mesial bend  215 , the second mesial bend  225 , the first elbow  214 , and the second elbow  224  is inferior to the superior side of the bridge  230 . Optionally, in this or any other embodiment, at least a portion of the first coupling end  211  is superior to at least a portion of the second coupling end  221 . Optionally, in this or any other embodiment, at least a portion of the first coupling end  211  is inferior to at least a portion of the second coupling end  221 . Optionally, in this or any other embodiment, the first coupling end  211  is neither inferior, nor superior to the second coupling end  221 . Optionally, in this or any other embodiment, at least a portion of the first converging end  212  is superior to at least a portion of the second converging end  222 . Optionally, in this or any other embodiment, at least a portion of the first converging end  212  is inferior to at least a portion of the second converging end  222 . Optionally, in this or any other embodiment, the first converging end  212  is neither superior nor inferior to the second converging end  222 . Optionally, in this or any other embodiment, the first terminus  213  is superior to the second terminus  223 . Optionally, in this or any other embodiment, the first terminus  213  is inferior to the second terminus  223 . Optionally, in this or any other embodiment, the first terminus  213  is neither inferior nor superior to the second terminus  223 . Optionally, in this or any other embodiment, at least a portion of the first mesial bend  215  is superior to at least a portion of the second mesial bend  225 . Optionally, in this or any other embodiment, at least a portion of the first mesial bend  215  is inferior to at least a portion of the second mesial bend  225 . Optionally, in this or any other embodiment, the entirety of the first mesial bend  215  is neither inferior nor superior to the entirety of the second mesial bend  225 . Optionally, in this or any other embodiment, at least a portion of the first elbow  214  is superior to at least a portion of the second elbow  224 . Optionally, in this or any other embodiment, at least a portion of the first elbow  214  is inferior to at least a portion of the second elbow  224 . Optionally, in this or any other embodiment, the entirety of the first elbow  214  is neither inferior nor superior to the entirety of the second elbow  224 . 
     Optionally, in this or any other embodiment, a demarcation between the first arm  210  and the bridge  230  may comprise the termination of the first mesial bend  215 . Optionally, in this or any other embodiment, a demarcation between the first arm  210  and the bridge  230  comprises the location of the friction protrusion  231  closest to the first arm  210 . Optionally, in this or any other embodiment, a demarcation between the second arm  220  and the bridge  230  comprises the termination of the second mesial bend  225 . Optionally, in this or any other embodiment, a demarcation between the second arm  220  and the bridge  230  comprises the location of the friction protrusion  231  closest to the second arm  220 . 
     As seen in  FIG. 2A , at least a portion of the first arm  210  may be tangent to a portion of the bridge  230 . Optionally, in this or any other embodiment, at least a portion of the first coupling end  211  is tangent to a portion of the bridge  230 . Optionally, in this or any other embodiment, at least a portion of the first arm  210  is tangent to a portion of the inferior side of bridge  230 . Optionally, in this or any other embodiment, at least a portion of the first coupling end  211  is tangent to a portion of the inferior side of bridge  230 . Optionally, in this or any other embodiment, at least a portion of the first arm  210  is tangent to a portion of the superior side of bridge  230 . Optionally, in this or any other embodiment, at least a portion of the first coupling end  211  is tangent to a portion of the superior side of bridge  230 . Optionally, in this or any other embodiment, at least a portion of the second arm  220  is tangent to a portion of the bridge  230 . Optionally, in this or any other embodiment, at least a portion of the second coupling end  221  is tangent to a portion of the bridge  230 . Optionally, in this or any other embodiment, at least a portion of the second arm  220  is tangent to a portion of the inferior side of bridge  230 . Optionally, in this or any other embodiment, at least a portion of the second coupling end  221  is tangent to a portion of the inferior side of bridge  230 . Optionally, in this or any other embodiment, at least a portion of the second arm  220  is tangent to a portion of the superior side of bridge  230 . Optionally, in this or any other embodiment, at least a portion of the second coupling end  221  is tangent to a portion of the superior side of bridge  230 . 
     The first terminus  213  and the second terminus  223 , per  FIG. 2A , comprise a rounded shape. Optionally, in this or any other embodiment, at least one of the first terminus  213  and the second terminus  223  comprise a pointed shape, a tapered shape, a twisted shape, a blunt shape, a polygonal shape, a bulge shape, or any combination thereof. Per  FIG. 2 , the first terminus  213  and the second terminus  223  may be equivalent. Optionally, in any other embodiment, the first terminus  213  and the second terminus  223  are not equivalent. 
     The penile constriction device  100  in  FIG. 2A  has a constriction gap width  261  wherein the constriction gap width  261  is measured as a minimum distance between the first converging end  212  and the second converging end  222  within the constriction region  260 . Optionally, in this or any other embodiment, the constriction gap width  261  is measured as a minimum distance between a mesial vertex of the surface of the first elbow  214  and a mesial vertex of the surface of the second elbow  224 . Optionally, in this or any other embodiment, the constriction gap width  261  is measured as a minimum distance between the first arm  210  and the second arm  220 . Optionally, in this or any other embodiment, the constriction gap distance  261  is measured as a minimum normal distance between the first elbow  214  and the second elbow  214  within the constriction region  260 . Optionally, in this or any other embodiment, the constriction gap width  261  is normal to at least one of a mesial vertex of the surface of the first converging end  212  a mesial vertex of the surface of the second converging end  212 , the first arm  210 , and the second arm  220 . 
     The penile constriction device  100  in  FIG. 2A  has a constriction gap distance  261  of greater than 0 inches. Optionally, in this or any other embodiment, the constriction gap distance  261  is negligible or equal to zero, wherein the first arm  210  and the second arm  220  are in temporary and divisible contact. Optionally, in other embodiments, the penile constriction device may have no constriction gap distance (or no constriction region) because the first elbow and the second elbow are permanently physically connected. Optionally, in other embodiments, the penile constriction device may have no constriction gap distance (or no constriction region) because the first arm and the second are permanently physically connected. Optionally, in this or any other embodiment, a recess is formed between the first arm  210 , the second arm  220 , the bridge  230 , and the constriction region  260 . Optionally, in this or any other embodiment, the recess is configured to fit around a penis. Optionally, in this or any other embodiment, the constriction region  260  is superior to at least one of the first terminus  213  and the second terminus  223 . Optionally, in this or any other embodiment, the constriction region  260  is inferior to at least one of the first terminus  213  and the second terminus  223 . 
     The penile constriction device  100  in  FIG. 2A  has a constriction height  280 , wherein the constriction height  280  may be measured as a normal distance between a constriction point  262  and the constriction region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the constriction point  262  and the inferior side of the bridge  230 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the constriction point  262  and the inferior side of the bridge  230 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the first elbow  214  and the inferior side of the bridge  230 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the second elbow  224  and the inferior side of the bridge  230 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the most mesial point of the first converging end  212  and the inferior side of the bridge  230 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the most mesial point of the second converging end  222  and the inferior side of the bridge  230 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the first elbow  214  and the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the second elbow  224  and the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the most mesial point of the first converging end  212  and the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the most mesial point of the second converging end  222  and the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the first elbow  214  and the most inferior point of the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the second elbow  224  and the most inferior point of the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the most mesial point of the first converging end  212  and the most inferior point of the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the most mesial point of the second converging end  222  and the most inferior point of the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the first elbow  214  and the most superior point of the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the second elbow  224  and the most superior point of the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the most mesial point of the first converging end  212  and the most superior point of the compression region  240 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a normal distance between the most mesial point of the second converging end  222  and the most superior point of the compression region  240 . Per  FIG. 2 , the constriction height  280  is perpendicular to at least one of the constriction gap width  261  and the inferior side of the bridge  230 . Alternatively, the constriction height  280  is oblique to at least one of the constriction gap width  261  and the inferior side of the bridge  230 . 
     The penile constriction device  100  in  FIG. 2A  has a constriction point  262 , wherein the constriction point  262  may be defined as the midpoint of the constriction gap width  261 . Optionally, in this or any other embodiment, the constriction point  262  is defined as a minimally equidistant point from the first converging end  212  and the second converging end  222 . Optionally, in this or any other embodiment, the constriction point  262  is defined as a minimally equidistant point from the first arm  210  and the second arm  220 . Optionally, in this or any other embodiment, the constriction point  262  is defined as a minimally equidistant point from the first elbow  214  and the second elbow  224 . 
     The penile constriction device  100  in  FIG. 2A , has a maximum inner width  270 , wherein the maximum inner width  270  may be measured as a maximum normal distance between a mesial vertex of the surface of the first arm  210  and a mesial vertex of the surface of the second arm  220 . Optionally, in this or any other embodiment, the maximum inner width  270  is measured as a maximum normal distance between a mesial vertex of the surface of the first converging end  212  and a mesial vertex of the surface of the second converging end  222 . Optionally, in this or any other embodiment, the maximum inner width  270  is measured as major axis of an ellipse formed by the first coupling end  211 , the bridge  230 , and the second coupling end  221 . Optionally, in this or any other embodiment, the maximum inner width  270  and the constriction gap width  261  are parallel. Optionally, in this or any other embodiment, the maximum inner width  270  and the constriction gap width  261  are oblique. Optionally, in this or any other embodiment, the maximum inner width  270  and the constriction gap width  261  are coplanar. Optionally, in this or any other embodiment, the maximum inner width  270  and the constriction gap width  261  are non-coplanar. Optionally, in this or any other embodiment, the maximum inner width  270  is superior to the constriction gap  260 . 
     The penile constriction device  100  in  FIG. 2A  has a center point  291  defined as the midpoint of a maximum normal distance between a mesial vertex of the surface of the first arm  210  and a mesial vertex of the surface of the second arm  220 . Optionally, in this or any other embodiment, the center point  291  is defined as the midpoint of the maximum inner width  270 . Optionally, in this or any other embodiment, the center point  291  is defined as a point minimally equidistant from a mesial vertex of the surface of the first arm  210  and a mesial vertex of the surface of the second arm  220 . Optionally, in this or any other embodiment, the center point  291  is defined as point minimally equidistant from the first converging end  211  and the second converging end  221 . Optionally, in this or any other embodiment, the center point  291  is defined as the center of an ellipse formed by the first coupling end  211 , the bridge  230 , and the second coupling end  221 . 
     The device  100 , per  FIG. 2A , has an inferior height  290 , wherein the maximum inferior height  290  may be measured as a normal distance between the center point  291  and the compression region  240 . Optionally, in this or any other embodiment, the inferior height  290  is measured as a normal distance between the center point  291  and the inferior side of the bridge  230 . Optionally, in this or any other embodiment, the inferior height  290  is parallel to the constriction height  280 . Optionally, in this or any other embodiment, the inferior height  290  and the constriction height  280  are collinear. Optionally, in this or any other embodiment, the inferior height  290  is perpendicular to at least one of the constriction gap width  261  and the maximum inner width  270 . Optionally, in this or any other embodiment, the inferior height  290  is coplanar with at least one of the constriction gap width  261 , the maximum inner width  270 , the constriction height  280 , and the constriction point  262 . 
     The device  100 , per  FIG. 2A , has a thickness  251 , wherein the thickness  251  may be measured as a maximum normal cross-sectional width of at least a portion of the first arched rod  250 . Optionally, in this or any other embodiment, the thickness  251  of the arched rod  250  is measured as a maximum outer distance between two opposing points of its normal cross-section. Optionally, in this or any other embodiment, the thickness  251  is measured as a maximum normal cross-sectional width of at least a portion of at least one of the first arm  210  and the second arm  220 . Optionally, in this or any other embodiment, the thickness  251  of the first arm  210 , the second arm  220 , and the bridge  230 , is measured as a maximum outer distance between two opposing points on the surfaces of their respective normal cross-sections. Optionally, in this or any other embodiment, the thickness  251  of at least two of the first arm  210 , the second arm  220 , and the bridge  230  are the same. Optionally, in this or any other embodiment, the thickness  251  of at least two of the first arm  210 , the second arm  220 , and the bridge  230  are unequal. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  have a uniform thickness  251 . Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  have a non-uniform thickness  251 , wherein the thickness  251  varies along its span. 
     The device  100 , per  FIG. 2A , has a first termination distance  212   a  and a second termination distance  222   a , wherein the first termination distance  212   a  may be measured as the maximum normal distance between the constriction gap width  261  and the first terminus  213 , and wherein the second termination distance  222   a  may be measured as the maximum normal distance between the constriction gap width  261  and the second terminus  223 . Optionally, in this or any other embodiment, the first termination distance  212   a  is measured as the maximum normal distance between the first elbow  214  and the first terminus  213 . Optionally, in this or any other embodiment, the first termination distance  212   a  is measured as the maximum normal distance between the second elbow  224  and the second terminus  223 . Optionally, in this or any other embodiment, at least one of the first termination distance  212   a  and the second termination distance  222   a  is about 0.2 inches to about 0.8 inches. Optionally, in this or any other embodiment, at least one of the first termination distance  212   a  and the second termination distance  222   a  is at least about 0.2 inches. Optionally, in this or any other embodiment, at least one of the first termination distance  212   a  and the second termination distance  222   a  is at most about 0.8 inches. Optionally, in this or any other embodiment, at least one of the first termination distance  212   a  and the second termination distance  222   a  is a constant and does not scale with the maximum inner width  270 , the constriction height  280 , the inferior height  290 , or the constriction gap width  261 . 
     As seen in  FIG. 2A , the first arm  210  and the second arm  220  may be generally parallel at a point superior to the constriction region  260 . Optionally, in this or any other embodiment, the first arm  210  and the second arm  220  are not parallel at a point superior to the constriction region  260 . Optionally, in this or any other embodiment, the first arm  210  and the second arm  220  are separated at a point superior to the constriction region  260  by a constriction angle  263 . Optionally, in this or any other embodiment, the constriction angle  263  is measured as a normal interior angle between the first arm  210  and the second arm  220  at a point superior to the constriction region  260 . 
     As further seen in  FIG. 2A , the first arm  210  and the second arm  220  may be generally parallel at a point inferior to the constriction region  260 . Optionally, in this or any other embodiment, the first arm  210  and the second arm  220  are not parallel at a point inferior to the constriction region  260 . Optionally, in this or any other embodiment, the first arm  210  and the second arm  220  are separated at a point inferior to the constriction region  260  by a termination angle  264 . Optionally, in this or any other embodiment, the termination angle  264  is measured as a normal interior angle between the first arm  210  and the second arm  220  at a point inferior to the constriction region  260 . 
     Optionally, in this or any other embodiment, the first arm  210  and the second arm  220  have a first arm length and a second arm length, respectively. Optionally, in this or any other embodiment, the first arm  210  has a first length measured a maximal span between the first coupling end  211  and the first terminus  213 . Optionally, in this or any other embodiment, the second arm  220  has a second arm length measured as a maximal span between the second coupling end  221  and the second terminus  223 . Optionally, in this or any other embodiment, the bridge  230  has a bridge length measured as a maximal span of the bridge  230  between the first arm  210  and the second arm  220 . Optionally, in this or any other embodiment, the bridge  230  has a bridge length measured as a maximal span of the bridge  230  between the first coupling end  211  and the second coupling end  221 . Optionally, in this or any other embodiment, the first arm length is equal to the second arm length. Optionally, in this or any other embodiment, the first arm length is greater or less than the second arm length. Optionally, in this or any other embodiment, at least one of the first arm length and the second arm length is greater or less than the bridge length. Optionally, in this or any other embodiment, at least one of the first arm length and the second arm length is equal to the bridge length. 
     Optionally, in this or any other embodiment, the first mesial divergence  215 , the second mesial divergence  225 , the first elbow  214 , and the second elbow  224  have a first mesial radius, a second mesial radius, a first elbow radius, and a second elbow radius, respectively. Optionally, in this or any other embodiment, the first mesial radius is equal to or greater than at least one of the second mesial radius, the first elbow radius, and the second elbow radius. Optionally, in this or any other embodiment, the second mesial radius is equal to or greater than at least one of the first mesial radius, the first elbow radius, and the second elbow radius. Optionally, in this or any other embodiment, the first elbow radius is equal to or greater than at least one of the first mesial radius, the second mesial radius, and the second elbow radius. Optionally, in this or any other embodiment, the second elbow radius is equal to or greater than at least one of the first mesial radius, the second mesial radius, and the first elbow radius. 
       FIG. 2B  shows a side cross-sectional view of a non-limiting example of the penile constriction device of  FIG. 1 . Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  has a uniform normal cross sectional shape. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  have a uniform normal cross sectional shape. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  have a non-uniform normal cross sectional shape. Optionally, in this or any other embodiment, at least two of the first arm  210 , the second arm  220 , and the bridge  230  have the same normal cross sectional shape. Optionally, in this or any other embodiment, at least two of the first arm  210 , the second arm  220 , and the bridge  230  have dissimilar normal cross sectional shapes. Per  FIG. 2B , the bridge  230  may have a normal cross section comprising an ellipse. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  have a normal cross section comprising a circle, an oval, an ellipse, a polygon, an irregular shape, a hollow shape, or any combination thereof. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  have a normal cross section comprising a c-shape, an x-shape, a T-shape, or an H-shape. 
       FIG. 2C  shows an alternative front view of a non-limiting example of the penile constriction device of  FIG. 1 . Optionally, in this or any other embodiment, the arched rod  250  comprises an arched axis  255  comprising a curve defined by the centroids of the normal cross sections of the arched rod  250  along its span. Optionally, in this or any other embodiment, the first arm  210 , the second arm  220 , and the bridge  230  comprise a first arched axis  255   a , a second arched axis  255   b , and a third arched axis  255   c , respectively. Optionally, in this or any other embodiment, the first arched axis  255   a  and the second arched axis  255   b  are coincident, tangent, or both. Optionally, in this or any other embodiment, the second arched axis  255   b  and the third arched axis  255   c  are coincident, tangent, or both. Optionally, in this or any other embodiment, at least one of the first arched axis  255   a , the second arched axis  255   b , and the third arched axis  255   c  comprises a planar curve which is completely coincident with a single plane. Optionally, in this or any other embodiment, at least two of the first arched axis  255   a , the second arched axis  255   b , and the third arched axis  255   c  are coplanar. 
     Per  FIG. 2C , the first arched axis  255   a  may comprise at least one of a first transverse bend  256   a  and a first mesial bend  256   b . Optionally, in this or any other embodiment, the third arched axis  255   c  comprises the first mesial bend  256   b . Optionally, in this or any other embodiment, the first transverse bend  256   a  comprises the first elbow  214 . Optionally, in this or any other embodiment, the first mesial bend  256   b  comprises the first mesial divergence  215 . Optionally, in this or any other embodiment, the first mesial bend  256   c  is superior to the first transverse bend  256   a . Optionally, in this or any other embodiment, the second arched axis  255   b  comprises at least one of a second transverse bend  256   c  and a second mesial bend  256   d . Optionally, in this or any other embodiment, the third arched axis  255   c  comprises the second mesial bend  256   d . Optionally, in this or any other embodiment, the second transverse bend  256   c  comprises the second elbow  224 . Optionally, in this or any other embodiment, the second mesial bend  256   d  comprises the second mesial divergence  225 . Optionally, in this or any other embodiment, the second mesial bend  256   c  is superior to the second transverse bend  256   d . Optionally, in this or any other embodiment, a demarcation between the first arched axis  255   a  and the bridge  255   c  comprises the termination of the first mesial bend  256   b . Optionally, in this or any other embodiment, a demarcation between the first arched axis  255   a  and the bridge  255   c  comprises the location of the friction protrusion  231  closest to the first arched axis  255   a . Optionally, in this or any other embodiment, a demarcation between the second arched axis  255   b  and the bridge  255   c  comprises the termination of the second mesial bend  256   d . Optionally, in this or any other embodiment, a demarcation between the second arched axis  255   b  and the bridge  255   c  comprises the location of the friction protrusion  331  closest to the second arched axis  255   b . Optionally, in this or any other embodiment, the radius of the first transverse bend  256   a  is equal to or greater than the radius of the first mesial bend  256   b . Optionally, in this or any other embodiment, the radius of the first transverse bend  256   a  is less than the radius of the first mesial bend  256   b . Optionally, in this or any other embodiment, the radius of the second transverse bend  256   c  is equal to or greater than the radius of the second mesial bend  256   d . Optionally, in this or any other embodiment, the radius of the second transverse bend  256   c  is less than the radius of the second mesial bend  256   d . Optionally, in this or any other embodiment, the radius of the first transverse bend  256   a  is equal to or greater than the radius of the second transverse bend  256   c . Optionally, in this or any other embodiment, the radius of the first transverse bend  256   a  is less than the radius of the second transverse bend  256   c . Optionally, in this or any other embodiment, the radius of the first mesial bend  256   b  is equal to or greater than the radius of the second mesial bend  256   d . Optionally, in this or any other embodiment, the radius of the first mesial bend  256   b  is less than the radius of the second mesial bend  256   d.    
     Per  FIG. 2C , at least a portion of the first arched axis  255   a , the second arched axis  255   b , and the third arched axis  255   c  may form a portion of an ellipse  257 . Optionally, in this or any other embodiment, the ellipse  257  has a major axis and a minor axis, wherein the major axis greater than the minor axis. Optionally, in this or any other embodiment, the major axis is oriented from the first arched axis  255   a  to the second arched axis  255   b , along the third arched axis  255   c.    
     As seen in  FIG. 2C , the arched rod  250  may comprise a mesial vertex arched axis  258 . Optionally, in this or any other embodiment, the mesial vertex arched axis  258  is defined as a single continuous line that is coincident to the surface of the arched rod  250  and closest to the center point  291 . Optionally, in this or any other embodiment, the mesial vertex arched axis  258  is substantially planar. Optionally, in this or any other embodiment, the mesial vertex arched axis  258  and the arched axis  255  are substantially coplanar. Optionally, in this or any other embodiment, the mesial vertex arched axis  258  and at least one of the first arched axis  255   a , the second arched axis  255   b , and the third arched axis  255   c  are substantially coplanar. 
     Per  FIG. 2C , the constriction gap width  261  of the arched rod  250  may be measured as a minimum separation of the mesial vertex arched axis  255  within the constriction region  260 . Optionally, in this or any other embodiment, the first arm length, the second arm length, and the bridge a length are measured as an arc length of the first arched axis  255   a , the second arched axis  255   b , and the third arched axis  255   c , respectively. Optionally, in this or any other embodiment, the inferior height  290  is measured as a half the minor axis of the ellipse formed by the first coupling end  211 , the bridge  230 , and the second coupling end  221 . Optionally, in this or any other embodiment, the constriction height  280  is measured as a maximum normal distance between the constriction point  262  and the mesial arched axis  255 . Optionally, in this or any other embodiment, the constriction height  280 , is perpendicular to the mesial vertex arched axis  258 . Optionally, in this or any other embodiment, the maximum inner width  270 , is measured as a maximum normal separation distance of the mesial vertex arched axis  270 . Optionally, in this or any other embodiment, the inferior height  290  is measured, as a normal distance between the center point  291  and the mesial vertex arched axis  258 . Optionally, in this or any other embodiment, the minor axis is twice the inferior height  290 . Optionally, in this or any other embodiment, a center point of the ellipse  257  is the center point  291 . 
     Per  FIG. 2C , the constriction angle  263  of the arched rod  250  may be measured as a normal interior angle between the first arched axis  255   a  and the second arched axis  255   b  at a point inferior to the constriction region  260 . Optionally, in this or any other embodiment, the first arched axis  255   a  and the second arched axis  255   b  are parallel at a point inferior to the constriction region  260 . Optionally, in this or any other embodiment, the first arched axis  255   a  and the second arched axis  255   b  are not parallel a point inferior to the constriction region  260 . 
     Per  FIG. 2C , the termination angle  264  may be measured as a normal interior angle between the first arched axis  255   a  and the second arched axis  255   b  at a point inferior to the constriction region  260 . Optionally, in this or any other embodiment, the first arched axis  255   a  and the second arched axis  255   b  are parallel at a point inferior to the constriction region  260 . Optionally, in this or any other embodiment, the first arched axis  255   a  and the second arched axis  255   b  are not parallel a point inferior to the constriction region  260 . 
     Per  FIG. 2C , the thickness  251  may be measured, as twice the normal distance between the mesial vertex arched axis  255  and at least one of the first arched axis  255   a , the second arched axis  255   b , and the third arched axis  255   c . Optionally, in this or any other embodiment, the thickness  251  of the first arm  210 , the second arm  220 , and the bridge  230  are measured as a maximum outer distance that is normal to the first arched axis  255   a , the second arched axis  255   b , and the third arched axis  255   c , respectively. Optionally, in this or any other embodiment, the normal cross section is defined as being normal to at least one of the first arched axis  255   a , the second arched axis  255   b , and the third arched axis  255   c . Optionally, in this or any other embodiment, the normal cross section of at least one of the first arm  210 , the second arm  220 , and the bridge  230  helically twists along the first arched axis  210 , the second arched axis  220 , and the third arched axis  230 , respectively. Optionally, in this or any other embodiment, the arched rod has a two-dimensional cavity area measured as a two-dimensional area confined by the constriction gap width, and the mesial vertex arched axis  258 . 
     As seen in  FIGS. 1 and 2A -C, at least one of the first elbow  214  and the second elbow  224 , the first mesial bend  215 , the second mesial bend  225 , the first converging end  212 , the second converging end  222 , the first terminus  213 , and the second terminus  223  may be configured to enable a user to grasp and apply a force to the device  100 . Optionally, in this or any other embodiment, at least one of the first elbow  214 , the second elbow  224 , the first mesial bend  215 , the second mesial bend  225  the first terminus  213 , and the second terminus  223  enable a user to grasp and apply a force between the first arm  210  and the second arm  220 . Optionally, in this or any other embodiment, at least one of the first elbow  214 , the second elbow  224 , the first mesial bend  215 , the second mesial bend  225  the first terminus  213 , and the second terminus  223  enable a user to grasp and apply a force to the device  100  to increase the constriction gap  261 . Optionally, in this or any other embodiment, at least one of the first elbow  214 , the second elbow  224 , the first mesial bend  215 , the second mesial bend  225 , the first terminus  213 , and the second terminus  223  enable a user to grasp and apply a force to the device  100  to increase the constriction gap  261  and install the device by passing the penis through the constriction gap  260 . 
     Optionally, in this or any other embodiment, the device  100  is ductile (flexible and/or elastic), wherein an applied force modifies the shape of the arched rod  250 , and wherein the arched rod  250  returns to its original shape upon cessation of the applied force. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  is ductile. Optionally, in this or any other embodiment, the device  100  is pliable, wherein an applied force modifies the shape of the arched rod  250 , and wherein the shape of the arched rod  250  does not return to its original shape upon cessation of the applied force. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  is pliable. Optionally, in this or any other embodiment, the arched rod  250  is ductile and pliable. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  is ductile and pliable. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  is ductile and not pliable. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , and the bridge  230  is pliable and not ductile. Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , is more ductile than the bridge  230 . Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , is more pliable than the bridge  230 . Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , is less ductile than the bridge  230 . Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , is less pliable than the bridge  230 . Optionally, in this or any other embodiment, the first arm  210  is more pliable than the second arm  220 . Optionally, in this or any other embodiment, the first arm  210  is more ductile than the second arm  220 . Optionally, in this or any other embodiment, the first arm  210  is less pliable than the second arm  220 . Optionally, in this or any other embodiment, the first arm  210  is less ductile than the second arm  220 . 
     Optionally, in this or any other embodiment, the arched rod  250  is ductile, wherein the constriction gap  261  returns to its original size upon cessation of the applied force. Optionally, in this or any other embodiment, the ductility of the arched rod  250  enables a user to apply the device  100  to the penis by applying a tensile force between the first converging end  212  and/or the first terminus  213  and the second converging end  222  and/or the second terminus  223  to increase the constriction gap  261 , inserting the device  100  onto the penile area, and releasing the tensile force. Optionally, in this or any other embodiment, once the tensile force is released, the constriction gap  261  of the arched rod  250  is greater than the constriction gap  261  of an unstressed and/or unapplied device  100 . Optionally, in this or any other embodiment, once the tensile force is released, the ductile arched rod  250  maintains a compressive force against the penile area. 
     Optionally, in this or any other embodiment, a tensile force applied between the first converging end  212  and/or the first terminus  213  and the second converging end  222  and/or the second terminus  223 , increases the constriction gap  260 . Optionally, in this or any other embodiment, a compressive force applied between the first converging end  212  and the second converging end  222  decreases the constriction gap  261 . 
       FIG. 3A  shows a detailed front view of the compression region  240  of a non-limiting example of the penile constriction device  100  of  FIG. 1 .  FIG. 3B  shows a detailed bottom view of the compression region  240  of the penile constriction device  100  of  FIG. 1 . Provided herein is a penile constriction device  100  comprising an arched rod  250  comprising a bridge  230  having a compression region  240  rising inferiorly from an inferior side of the bridge  230 . 
     Per  FIGS. 3A-B , the compression region  240  may comprise a first dorsal vein protrusion  310  and a second dorsal vein protrusion  320  rising from the inferior side of the bridge  230 . Further, the first dorsal vein protrusion  310  may comprise at least one of a first dorsal apex  311  and a first lateral edge  312 . The first lateral edge  312 , per  FIG. 3A , may be disposed at the most transverse point along the intersection between the first dorsal vein protrusion  310  and the inferior side of the bridge  230 . Alternatively, in this or any other embodiment, the first lateral edge  312  may be disposed at the most transverse point of the compression region  240  that is closest a first arm. The first dorsal apex  311 , per  FIG. 3A , may be disposed at the most inferior point on the first dorsal vein protrusion  310 . Alternatively, in this or any other embodiment, the first dorsal apex  311  may be disposed at an inflection point of the first dorsal vein protrusion  310 . Optionally, in this or any other embodiment, the second dorsal vein protrusion  320  comprises at least one of a second dorsal apex  321  and a second lateral edge  322 . Optionally, per  FIG. 3A , the second lateral edge  322  may be disposed at the most transverse point along the intersection between the second dorsal vein protrusion  320  and the inferior side of the bridge  230 . Alternatively, in this or any other embodiment, the second lateral edge  322  may be disposed at the most transverse point of the compression region  240  that is closest a second arm. The second dorsal apex  321 , per  FIG. 3A , may be disposed at the most inferior point on the second dorsal vein protrusion  320 . Alternatively, in this or any other embodiment, the second dorsal apex  321  may be disposed at an inflection point of the second dorsal vein protrusion  320 . Optionally, in this or any other embodiment, the compression region  240  is integral with the inferior side of the bridge  230 . Optionally, in this or any other embodiment, the compression region  240  is separate and distinct from the inferior side of the bridge  230 . Optionally, in this or any other embodiment, the compression region  240  within the dorsal vein valley  330  at a center of the dorsal vein valley  330  is superior to, or has a same height relative to, the first lateral edge  312  as the first minimum normal distance or relative to the second lateral edge  322  as the second minimum normal distance, or both. Optionally, in this or any other embodiment, the compression region  240  at a center of the dorsal vein valley  330  is superior to the first lateral edge  312 , the second lateral edge  322 , or both. Optionally, in this or any other embodiment, the compression region  240  at a center of the dorsal vein valley  330  is inferior to the first lateral edge  312 , the second lateral edge  322 , or both. Optionally, in this or any other embodiment, a boundary between the first dorsal vein protrusion  310  and the dorsal vein valley  330  comprises a plane coincident with the first dorsal apex  311 , and perpendicular to the dorsal vein valley distance. Optionally, in this or any other embodiment, a boundary between the second dorsal vein protrusion  220  and the dorsal vein valley  330  comprises a plane coincident with the second dorsal apex  321 , and normal to the dorsal vein valley distance  350 . Optionally, in this or any other embodiment, the first dorsal vein protrusion  310 , the dorsal vein valley  330 , and the second dorsal vein protrusion  320  are arranged sequentially within the compression region  240  in a direction along the bridge  230  from the first arm  210  to the second arm  220 . 
     Per  FIG. 3A , at least a portion of a perimeter of the compression region  240 , where the compression region  240  meets inferior side of the bridge  230 , optionally comprises a fillet  360 . Optionally, in this or any other embodiment, the portion of a perimeter of the compression region  240  where the compression region  240  meets the inferior side of the bridge  230  comprises at least one of the intersection between the first dorsal protrusion  310  and the inferior side of the bridge  230 , the intersection between the second dorsal protrusion  320  and the inferior side of the bridge  230 , and the intersection between the dorsal vein valley  330  and the inferior side of the bridge  230 . Optionally, in this or any other embodiment, at least one of the first dorsal protrusion  310 , the second dorsal protrusion  320 , and the dorsal vein valley  330  comprise a first portion, a second portion, and a fillet  360  between the first portion and the second portion. Optionally, in this or any other embodiment, the fillet  360  comprises a concave fillet, a miter fillet, or a convex fillet. Optionally, in this or any other embodiment, the fillet  360  comprises a constant fillet. Optionally, in this or any other embodiment, the fillet  360  comprises a variable fillet. Optionally, in this or any other embodiment, the fillet  360  improves the manufacturability of the device  100 . Optionally, in this or any other embodiment, the fillet  360  increases the rigidity of at least one of the first dorsal vein protrusion  210 , the second dorsal vein protrusion  220 , and the dorsal vein valley  230 . Optionally, in this or any other embodiment, the fillet  360  prevents pinching between the compression region  240  and the inferior side of the bridge  230 . 
     As seen in  FIGS. 3A-B , at least one of the first dorsal vein protrusion  210  and the second dorsal vein protrusion  220  may comprise a cross sectional shape comprising an ellipse. Optionally, in this or any other embodiment, at least one of the first dorsal vein protrusion  210  and the second dorsal vein protrusion  220  comprise a cross sectional shape comprising a circle, an oval, a polygon, or any combination thereof. Optionally, in this or any other embodiment, the first dorsal vein protrusion  210  and the second dorsal vein protrusion  220  have equivalent cross sectional shapes. Optionally, in this or any other embodiment, the first dorsal vein protrusion  210  and the second dorsal vein protrusion  220  have cross sectional shapes with a mirrored symmetry. Optionally, in this or any other embodiment, the first dorsal vein protrusion  210  and the second dorsal vein protrusion  220  have mirrored symmetry. Optionally, in this or any other embodiment, the first dorsal vein protrusion  210  and the second dorsal vein protrusion  220  have inequivalent cross sectional shapes. Optionally, in this or any other embodiment, the first dorsal vein protrusion  210  and the second dorsal vein protrusion  220  have equivalent cross sectional shapes. Optionally, in this or any other embodiment, the dorsal vein valley  230  is generally concave in one or more directions. Optionally, in this or any other embodiment, the dorsal vein valley  230  is generally convex in one or more directions. 
     Per  FIGS. 3A-B , the compression region  240  comprises a compression region width  340  measured as a distance between the first lateral edge  312  and the second lateral edge  322 . Optionally, in this or any other embodiment, the compression region width  340  is measured as a maximum width of the compression region  240  in a dimension from the first arm  210  to the second arm  220  along the inferior surface of the bridge  230 . Optionally, in this or any other embodiment, the compression region width  340  is measured as a maximum normal width of the compression region  240  in a dimension from the first arm  210  to the second arm  220  along the inferior surface of the bridge  230 . 
     Per  FIGS. 3A-B , the dorsal vein valley  330  has a dorsal vein valley distance  350  measured as a distance between the first dorsal apex  311  and the second dorsal apex  321 . Optionally, in this or any other embodiment, the dorsal vein valley distance  350  is measured as a maximum transverse span of the dorsal vein valley  330 . Optionally, in this or any other embodiment, the dorsal vein valley distance  350  is measured as a maximum transverse and normal span of the dorsal vein valley  330   
     As seen in  FIG. 3A , the first dorsal protrusion  310  has a first dorsal height  313  measured as a first minimum normal distance between the first dorsal apex  311  and the first lateral edge  312 . Further, the second dorsal protrusion  320  may comprise a second dorsal height  323  measured as a second minimum normal distance between the second dorsal apex  321  and the second lateral edge  322 . Optionally, in this or any other embodiment, the first dorsal height  313  is measured as a minimum normal distance between the first dorsal apex  311  and a perimeter of the compression region  240 . Optionally, in this or any other embodiment, the second dorsal height  323  is measured as a minimum normal distance between the second dorsal apex  321  and a perimeter of the compression region  240 . Optionally, in this or any other embodiment, the first dorsal height  313  is measured as a maximum normal distance between the first dorsal apex  311  and a perimeter of the compression region  240 . Optionally, in this or any other embodiment, the second dorsal height  323  is measured as a maximum normal distance between the second dorsal apex  321  and a perimeter of the compression region  240 . Optionally, in this or any other embodiment, the first dorsal height  313  is measured as an average normal distance between the first dorsal apex  311  and a perimeter of the compression region  240 . Optionally, in this or any other embodiment, the second dorsal height  323  is measured as an average normal distance between the second dorsal apex  321  and a perimeter of the compression region  240 . Optionally, in this or any other embodiment, the first dorsal height  313  is greater than the second dorsal height  323 . Optionally, in this or any other embodiment, the first dorsal height  313  is less than the second dorsal height  323 . Optionally, in this or any other embodiment, the first dorsal height  313  and the second dorsal height  323  are approximately equal. 
     The dorsal vein valley  330 , per  FIG. 3A , comprises a dorsal vein valley depth  333  measured as a normal distance between the first dorsal apex  311  and the center of the dorsal vein valley  330 . Optionally, in this or any other embodiment, the dorsal vein valley depth  333  is measured as a normal distance between the second dorsal apex  321  and the center of the dorsal vein valley  330 . Optionally, in this or any other embodiment, the dorsal vein valley depth  333  is measured as a minimal normal distance between the second dorsal apex  321  and the center of the dorsal vein valley  330 . Optionally, in this or any other embodiment, the dorsal vein valley depth  333  is measured as a traverse dimension of the dorsal vein valley  330  normal to the dorsal vein valley distance  350 . Optionally, in this or any other embodiment, the dorsal vein valley  330  comprises two or more dorsal vein valley depths  333 . Optionally, in this or any other embodiment, the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the first dorsal vein protrusion  210  is equal to the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the center of the dorsal vein valley  330 . Optionally, in this or any other embodiment, the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the first dorsal vein protrusion  210  is smaller or larger than the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the center of the dorsal vein valley  330 . Optionally, in this or any other embodiment, the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the second dorsal vein protrusion  220  is equal to the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the center of the dorsal vein valley  330 . Optionally, in this or any other embodiment, the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the second dorsal vein protrusion  220  is smaller or larger than the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the center of the dorsal vein valley  330 . Optionally, in this or any other embodiment, the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the first dorsal vein protrusion  210  is equal to the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the second dorsal vein protrusion  220 . Optionally, in this or any other embodiment, the dorsal vein depth of the dorsal vein valley  330  at its intersection with the first dorsal vein protrusion  210  is smaller or larger than the dorsal vein valley depth  333  of the dorsal vein valley  330  at its intersection with the second dorsal vein protrusion  220 . 
     Optionally, in this or any other embodiment, at least one of the first dorsal height  313 , the second dorsal height  323 , the dorsal vein valley distance  350 , the compression region width  340 , and the dorsal vein valley depth are scaled with respect to at least one of the maximum inner width  270 , the constriction gap  261 , inferior height  290 , and the constriction height  280 . 
     Optionally, in this or any other embodiment, at least one of the first dorsal height and the second dorsal height is about 0.02 inches to about 0.08 inches. Optionally, in this or any other embodiment, at least one of the first dorsal height and the second dorsal height is at least about 0.02 inches. Optionally, in this or any other embodiment, at least one of the first dorsal height and the second dorsal height is at most about 0.08 inches. Optionally, in this or any other embodiment, a dorsal vein valley distance is about 0.15 inches to about 0.7 inches. Optionally, in this or any other embodiment, a dorsal vein valley distance is at least about 0.15 inches. Optionally, in this or any other embodiment, a dorsal vein valley distance is at most about 0.7 inches. Optionally, in this or any other embodiment, a dorsal vein valley depth is about 0.02 inches to about 0.08 inches. Optionally, in this or any other embodiment, a dorsal vein valley depth is at least about 0.02 inches. Optionally, in this or any other embodiment, a dorsal vein valley depth is at most about 0.08 inches. Optionally, in this or any other embodiment, a ratio between the dorsal vein valley distance and at least one of the first dorsal height and the second dorsal height is about 4:1 to about 16:1. Optionally, in this or any other embodiment, a ratio between the dorsal vein valley distance and at least one of the first dorsal height and the second dorsal height is at least about 4:1. Optionally, in this or any other embodiment, a ratio between the dorsal vein valley distance and at least one of the first dorsal height and the second dorsal height is at most about 16:1. Optionally, in this or any other embodiment, the compression region width is about 0.2 inches to about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is at least about 0.2 inches. Optionally, in this or any other embodiment, the compression region width is at most about 0.8 inches. Optionally, in this or any other embodiment, a ratio between the compression region width and a dorsal vein valley distance is about 1.1:1 to about 2:1. Optionally, in this or any other embodiment, a ratio between the compression region width and a dorsal vein valley distance is at least about 1.1:1. Optionally, in this or any other embodiment, a ratio between the compression region width and a dorsal vein valley distance is at most about 2:1. Optionally, in this or any other embodiment, a dorsal vein depth is about 0.15 inches to about 0.65 inches. Optionally, in this or any other embodiment, a dorsal vein depth is at least about 0.15 inches. Optionally, in this or any other embodiment, a dorsal vein depth is at most about 0.65 inches. Optionally, in this or any other embodiment, a ratio between the compression region width and the maximum inner width is about 0.2:1 to about 0.7:1. Optionally, in this or any other embodiment, a ratio between the compression region width and the maximum inner width is at least about 0.2:1. Optionally, in this or any other embodiment, a ratio between the compression region width and the maximum inner width is at most about 0.7:1. Optionally, in this or any other embodiment, a dorsal vein valley distance is about 0.15 inches to about 0.75 inches. Optionally, in this or any other embodiment, a dorsal vein valley distance is at least about 0.15 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance is at most about 0.75 inches. Optionally, in this or any other embodiment, the compression region width is about 0.2 inches to about 0.8 inches. Optionally, in this or any other embodiment, the compression region width is at least about 0.2 inches. Optionally, in this or any other embodiment, the compression region width is at most about 0.8 inches. 
     Per  FIGS. 3A-B , the compression region  240  may comprise the first dorsal vein protrusion  310  and the second dorsal vein protrusion  320 . Optionally, in this or any other embodiment, compression region  240  may further comprise 1, 2, 3, 4, 5, or more dorsal vein protrusions. Optionally, in this or any other embodiment, the three or more dorsal vein protrusions are arranged sequentially within the compression region  240  in a direction along the bridge  230  from the first arm  210  to the second arm  220 . Optionally, in this or any other embodiment, the three or more dorsal vein protrusions are arranged in a linear pattern, a circular pattern, a checkerboard pattern, a random pattern, or any combination thereof. Optionally, in this or any other embodiment, at least two of the three or more dorsal vein protrusions have the same cross sectional shape. Optionally, in this or any other embodiment, at least two of the three or more dorsal vein protrusions have different cross sectional shapes. Optionally, in this or any other embodiment, the dorsal height of each of the three or more dorsal vein protrusions are equal. Optionally, in this or any other embodiment, the dorsal vein height of each of the three or more dorsal vein protrusions are unequal. 
     Optionally, in this or any other embodiment, the compression region  240  comprises three or more dorsal vein protrusions, wherein each dorsal vein protrusion is separated from one or more other dorsal vein protrusions by a dorsal vein valley  330 , wherein the compression region  240  comprises two or more dorsal vein valleys Optionally, in this or any other embodiment, at least two of the two or more dorsal vein valleys have the same cross sectional shape. Optionally, in this or any other embodiment, at least two of the three or more dorsal vein protrusions have different cross sectional shapes. Optionally, in this or any other embodiment, the dorsal vein valley distance  350  of each of the two or more dorsal vein valleys are equal. Optionally, in this or any other embodiment, the dorsal vein valley distance  350  of each of the two or more dorsal vein valleys are unequal. Optionally, in this or any other embodiment, the dorsal vein valley depths  333  of each of the two or more dorsal vein valleys are equal. Optionally, in this or any other embodiment, the dorsal vein valley depths  333  of each of the two or more dorsal vein valleys are unequal. 
     Optionally, in this or any other embodiment, at least one three or more dorsal protrusions has a dorsal height of about 0.02 inches to about 0.08 inches. Optionally, in this or any other embodiment, at least one three or more dorsal protrusions has a dorsal height of least about 0.02 inches. Optionally, in this or any other embodiment, at least one three or more dorsal protrusions has a dorsal height of at most about 0.08 inches. Optionally, in this or any other embodiment, a dorsal vein valley distance of at least one of the dorsal vein valleys is about 0.15 inches to about 0.7 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance of at least one of the dorsal vein valleys is at least about 0.15 inches. Optionally, in this or any other embodiment, the dorsal vein valley distance of at least one of the dorsal vein valleys is at most about 0.7 inches. Optionally, in this or any other embodiment, a dorsal vein valley depth of at least one of the dorsal vein valleys is about 0.02 inches to about 0.08 inches. Optionally, in this or any other embodiment, the dorsal vein valley depth of at least one of the dorsal vein valleys is at least about 0.02 inches. Optionally, in this or any other embodiment, the dorsal vein valley depth of at least one of the dorsal vein valleys is at most about 0.08 inches. 
       FIG. 4  shows a top view of the friction protrusions of the penile constriction device  100  of  FIG. 1 . Optionally, in this or any other embodiment, the penile constriction device  100  comprises a plurality of friction protrusions  231  on a superior side of the bridge  230 . 
     In one exemplary embodiment, per  FIG. 4 , the bridge  230  comprises 29 friction protrusions  231  in a staggered rectilinear array comprising 3 columns and 19 rows, wherein each column is arranged in a direction from the first arm  210  to the second arm  220 . Optionally, in this or any other embodiment, the plurality of friction protrusions is arranged in a circular array, a polygonal array, a curvilinear array, or any combination thereof. Optionally, in this or any other embodiment, the friction protrusions  251  comprise a cross sectional shape comprising a circle, a half circle, an oval, an ellipse, a teardrop, a polygon, an irregular shape, a hollow shape, or any combination thereof. Optionally, in this or any other embodiment, at least two of the friction protrusions  251  comprise the same cross sectional shape. Optionally, in this or any other embodiment, at least two of the friction protrusions  251  comprise different cross sectional shapes. In this exemplary embodiment, at least one of the shape and the size of the friction protrusions  231  are configured to be easily producible by a molding process or an over-molding process. Optionally, in this or any other embodiment, the plurality of friction protrusions  231  comprises about 2 protrusions to about 60 protrusions. Alternatively, in this or any other embodiment, the plurality of friction protrusions  231  comprises at least about 2 protrusions. Alternatively, in this or any other embodiment, the plurality of friction protrusions  231  comprises at most about 60 protrusions. 
       FIG. 5  shows a side cross-sectioned view of the friction protrusions and compression region of the penile constriction device  100  of  FIG. 1 . Per  FIG. 5  the friction protrusion height  531  is measured as a maximal normal distance between an apex of the friction protrusion  251  and the superior side of the bridge  230 . Optionally, in this or any other embodiment, the friction protrusion height  531  is measured as a maximum normal distance between the apex of the friction protrusion  251  and its intersection with the superior side of the bridge  230 . Optionally, in this or any other embodiment, the friction protrusion height  531  is measured as a minimum normal distance between the apex of the friction protrusion  251  and its intersection with the superior side of the bridge  230 . Optionally, in this or any other embodiment, at least two of the friction protrusions  251  have the same friction protrusion height  531 . Optionally, in this or any other embodiment, at least two of the friction protrusions  251  have different friction protrusion heights  531 . Optionally, in this or any other embodiment, the friction protrusion height  531  is about 0.01 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusion height  531  is at least about 0.01 inches. Optionally, in this or any other embodiment, the friction protrusion height  531  is at most about 0.06 inches. 
     Per  FIG. 5  the friction protrusion width  532  is measured as a maximal normal distance between a first intersection between the friction protrusion  251  and the superior side of the bridge  230 , and a second opposing intersection between the friction protrusion  251  and the superior side of the bridge  230 . Optionally, in this or any other embodiment, the friction protrusion width  532  is measured as a minimal normal distance between a first intersection between the friction protrusion  251  and the superior side of the bridge  230 , and a second opposing intersection between the friction protrusion  251  and the superior side of the bridge  230 . Optionally, in this or any other embodiment, at least two of the friction protrusions  251  have the same friction protrusion width  532 . Optionally, in this or any other embodiment, at least two of the friction protrusions  251  have different friction protrusion widths  532 . Optionally, in this or any other embodiment, the friction protrusion width  532  is about 0.01 inches to about 0.06 inches. Optionally, in this or any other embodiment, the friction protrusion width  532  is at least about 0.01 inches. Optionally, in this or any other embodiment, the friction protrusion width  532  is at most about 0.06 inches. 
     Optionally, in this or any other embodiment, the plurality of friction protrusion  231  is configured to interact with the female genitalia during intercourse. Optionally, in this or any other embodiment, the plurality of friction protrusion  231  is configured to stimulate the female genitalia during intercourse. Optionally, in this or any other embodiment, the plurality of friction protrusion  231  is configured to interact with the clitoris during intercourse. Optionally, in this or any other embodiment, at least one of the array of the plurality of friction protrusions  231 , the cross sectional shape of the plurality of friction protrusions  231 , and the friction protrusion height  531  are configured for increased stimulation of the female genitalia during intercourse. Optionally, in this or any other embodiment, at least one of the array of the plurality of friction protrusions  231 , the cross sectional shape of the plurality of friction protrusions  231 , and the friction protrusion height  531  are configured to prevent damage to the female genitalia during intercourse. 
     Optionally, in this or any other embodiment the penile constriction device does not comprise the first dorsal vein protrusion or the second dorsal vein protrusion. As shown in one embodiment, per  FIG. 19 , the penile constriction device comprises the friction protrusions and does not comprise the first dorsal vein protrusion or the second dorsal vein protrusion. Optionally, in this or any other embodiment, the penile constriction device does not comprise the friction protrusions. As shown in one embodiment, per  FIG. 20 , the penile constriction device comprises the first dorsal vein protrusion and the second dorsal vein protrusion and does not comprise the friction protrusions. Optionally, in this or any other embodiment, the penile constriction device does not comprise the friction protrusions, the first dorsal vein protrusion, or the second dorsal vein protrusion. As shown in one embodiment, per  FIG. 21 , the penile constriction device does not comprise the friction protrusion, the first dorsal vein protrusion, or the second dorsal vein protrusion. 
       FIG. 6  shows a front view of a non-limiting second example of a penile constriction device  600 .  FIG. 7  shows a front view of a non-limiting example of a third penile constriction device  700 .  FIG. 8  shows a front view of a non-limiting example of a fourth penile constriction device  800 .  FIG. 9  shows a front view of a non-limiting example of a fifth penile constriction device  900 . 
       FIG. 10  shows a front cross-sectioned view of a non-limiting example of a penile constriction device comprising a frame and a cover. Optionally, in this or any other embodiment, the penile constriction device  1000  comprises an arched rod comprising a cover  1020  substantially surrounding a frame  1010 . 
     Optionally, in this or any other embodiment, the frame  1010  comprises a frame portion of the first arm, a frame portion of the second arm, and a frame portion of the bridge. Optionally, in this or any other embodiment, the frame portion of the first arm is rigidly attached the frame portion of the bridge. Optionally, in this or any other embodiment, the frame portion of the second arm is rigidly attached to the frame portion of the bridge. Optionally, in this or any other embodiment, the frame portion of the first arm is flexibly attached to the frame portion of the bridge. Optionally, in this or any other embodiment, the frame portion of the second arm is flexibly attached to the frame portion of the bridge. Optionally, in this or any other embodiment, the frame portion of the first arm is removably attached the frame portion of the bridge. Optionally, in this or any other embodiment, the frame portion of the second arm is removably attached the frame portion of the bridge. Optionally, in this or any other embodiment, the frame portion of the first arm is not rigidly attached to the frame portion of the bridge. Optionally, in this or any other embodiment, the frame portion of the second arm is not attached the frame portion of the bridge. 
     Optionally, in this or any other embodiment, the cover  1020  comprises a cover portion of the first arm, a cover portion of the second arm, and a cover portion of the bridge. Optionally, in this or any other embodiment, the cover portion of the first arm is rigidly attached the cover portion of the bridge. Optionally, in this or any other embodiment, the cover portion of the second arm is rigidly attached to the cover portion of the bridge. Optionally, in this or any other embodiment, the cover portion of the first arm is flexibly attached to the cover portion of the bridge. Optionally, in this or any other embodiment, the cover portion of the second arm is flexibly attached to the cover portion of the bridge. Optionally, in this or any other embodiment, the cover portion of the first arm is removably attached the cover portion of the bridge. Optionally, in this or any other embodiment, the cover portion of the second arm is removably attached the cover portion of the bridge. Optionally, in this or any other embodiment, the cover portion of the first arm is not rigidly attached to the cover portion of the bridge. Optionally, in this or any other embodiment, the cover portion of the second arm is not attached the cover portion of the bridge. 
     Optionally, in this or any other embodiment, the frame  1010  comprises the compression region, wherein the cover  1020  surrounds the compression region. Optionally, in this or any other embodiment, the frame  1010  does not comprise the compression region, wherein the cover  1020  comprises the compression region. Optionally, in this or any other embodiment, both the frame  1010  and the cover  1020  comprise the compression region. Optionally, in this or any other embodiment, the frame  1010  comprises the plurality of friction protrusions, wherein the cover  1020  surrounds the plurality of friction protrusions. Optionally, in this or any other embodiment, the frame  1010  does not comprise the plurality of friction protrusions, wherein the cover  1020  comprises the plurality of friction protrusions. Optionally, in this or any other embodiment, both the frame  1010  and the cover  1020  comprise the plurality of friction protrusions. Optionally, in this or any other embodiment, the penile constriction device  1000  comprises an arched rod comprising a cover  1020  without a frame  1010 . Optionally, in this or any other embodiment, the penile constriction device  1000  comprises an arched rod comprising a frame  1010  without a cover  1020 . 
     As seen in  FIG. 10 , the frame  1010  is completely surrounded by the cover  1020 . Optionally, in this or any other embodiment, the cover  1020  completely surrounds a portion of the frame  1010 . Optionally, in this or any other embodiment, the cover  1020  does not surround at least a portion of the first terminus. Optionally, in this or any other embodiment, the cover  1020  does not surround at least a portion of the second terminus. Optionally, in this or any other embodiment, the cover  1020  is tubular in shape. Optionally, in this or any other embodiment, the cover  1020  does not comprise one or more of an appendage and a band. Optionally, in this or any other embodiment, the cover  1020  does not have a ribbed core. Optionally, in this or any other embodiment, the cover  1020  surrounds the frame  1010  of at least one of the first terminus and the second terminus. Optionally, in this or any other embodiment, the cover  1020  does not surround the frame  1010  of at least one of the first terminus and the second terminus. 
     Per  FIG. 10 , the frame  1010  may comprise a frame thickness  1011  measured as a maximum outer distance of a cross-section of the frame  1010 . Optionally, in this or any other embodiment, the frame thickness  1011  is measured as a normal outer distance of a cross-section of the frame  1010 . Optionally, in this or any other embodiment, the frame thickness  1011  comprises a uniform inner thickness  1021 . Optionally, in this or any other embodiment, the frame thickness  1011  comprises a non-uniform inner thickness  1021 . Optionally, in this or any other embodiment, the frame thickness  1011  of the first arm  210  is greater than or equal to the frame thickness  1011  of the second arm  220 . Optionally, in this or any other embodiment, the frame thickness  1011  of the first arm  210  is less than to the frame thickness  1011  of the second arm  220 . Optionally, in this or any other embodiment, the frame thickness  1011  of the first arm  210  is greater than or equal to the frame thickness  1011  of the bridge  230 . Optionally, in this or any other embodiment, the frame thickness  1011  of the first arm  210  is less than to the frame thickness  1011  of the bridge  230 . 
     Per  FIG. 10 , the cover  1020  may comprise a cover thickness  1021  measured as a maximum normal outer distance of the cross-section of the cover  1020 . Optionally, in this or any other embodiment, the cover thickness  1021  is measured as a maximum or a minimum outer distance of the cross-section of the cover  1020 . Optionally, in this or any other embodiment, the cover thickness  1021  comprises a uniform cover thickness  1021 . Optionally, in this or any other embodiment, the cover thickness  1021  comprises a non-uniform cover thickness  1021 . 
     Optionally, in this or any other embodiment, at least two of the cover portion of the first arm, the cover portion of the second arm, and the cover portion of the bridge have the same cover thickness  1021 . Optionally, in this or any other embodiment, at least two of the cover portion of the first arm, the cover portion of the second arm, and the cover portion of the bridge have the different cover thickness  1021 . Optionally, in this or any other embodiment, the cover thickness  1021  of at least a portion of the cover  1020  corresponds to the frame thickness  1011  of the frame  1010 . Optionally, in this or any other embodiment, the frame  1010  comprises the compression region, wherein the frame thickness  1011  of a portion of the frame  1010  within the compression region is greater than the frame thickness  1011  of a portion of the frame  1010  outside the compression region. Optionally, in this or any other embodiment, the frame  1010  does not comprise the compression region, wherein the cover  1020  comprises the compression region, and wherein the cover thickness  1021  of a portion of the cover  1020  within the compression region is greater than the cover thickness  1021  of a portion of the cover  1020  outside the compression region. Optionally, in this or any other embodiment, both the frame  1010  and the cover  1020  comprise the compression region, wherein the frame thickness  1011  of a portion of the frame  1010  within the compression region is greater than the frame thickness  1011  of a portion of the frame  1010  outside the compression region, and wherein the cover thickness  1021  of a portion of the cover  1020  within the compression region is greater than the cover thickness  1021  of a portion of the cover  1020  outside the compression region. 
     Per  FIG. 10 , the cover  1020  may comprise a cover depth  1022  measured as a normal distance between the boundary of the frame  1010  and the cover  1020 , and the outer face of the cover  1020 . Optionally, in this or any other embodiment, the cover depth  1022  is measured as a minimum or maximum distance between the boundary of the frame  1010  and the cover  1020 , and a point on outer face of the cover  1020 . Optionally, in this or any other embodiment, the cover depth  1022  comprises a single cover depth  1022 . Optionally, in this or any other embodiment, the cover depth  1022  comprises a plurality of cover depths  1022 . 
     Optionally, in this or any other embodiment, a ratio between the frame thickness  1011  and the cover thickness  1021  is about 1:1 to about 5:1. Optionally, in this or any other embodiment, a ratio between the frame thickness  1011  and the cover depth  1022  is about 1:1 to about 10:1. 
     Optionally, in this or any other embodiment, the cover  1020  and the frame  1010  comprise the same material. Optionally, in this or any other embodiment, the cover  1020  and the frame  1010  comprise different materials. Optionally, in this or any other embodiment, at least one of the cover  1020  and the frame  1010  is pliable. Optionally, in this or any other embodiment, at least one of the cover  1020  and the frame  1010  is ductile. Optionally, in this or any other embodiment, at least one of the cover  1020  and the frame  1010  is pliable and ductile. Optionally, in this or any other embodiment, at least one of the cover  1020  and the frame  1010  is pliable and not ductile. Optionally, in this or any other embodiment, at least one of the cover  1020  and the frame  1010  is ductile and not pliable. Optionally, in this or any other embodiment, the cover  1020  is formed of a material that is safe for prolonged human contact, and which does not irritate or cut the skin the penile area. 
     Optionally, in this or any other embodiment, a frame modulus of elasticity of the frame  1010  of the first arm is higher than a frame modulus of elasticity of the frame  1010  of the second arm. Optionally, in this or any other embodiment, the frame modulus of elasticity of the frame  1010  of the first arm is less than or equal to the frame modulus of elasticity of the frame  1010  of the second arm. Optionally, in this or any other embodiment, a frame modulus of elasticity of the frame  1010  of the first arm is higher than a frame modulus of elasticity of the frame  1010  of the bridge. Optionally, in this or any other embodiment, the frame modulus of elasticity of the frame  1010  of the first arm is less than or equal to the frame modulus of elasticity of the frame  1010  of the bridge. 
     Optionally, in this or any other embodiment, at least one of the cover  1020  and the frame  1010  comprise plastic, silicone, glass, wood, metal, carbon fiber, fiberglass, or any combination thereof. Optionally, in this or any other embodiment, at least one of the cover  1020  and the frame  1010  comprise polyamide, polycarbonate, polyester, polyethylene, polyethylene terephthalate, polypropylene, polystyrene, polyurethanes, polyvinyl chloride, polyvinylidene chloride acrylonitrile butadiene styrene acrylonitrile butadiene styrene, polyethylene/acrylonitrile butadiene styrene, polyepoxide, polymethyl methacrylate, polytetrafluoroethylene, phenolics melamine formaldehyde urea-formaldehyde, polyetheretherketone, maleimide/bismaleimide, polyetherimide, polyimide, polylactic acid, furan silicone, polysulfone, or any combination thereof. 
     Optionally, in this or any other embodiment, the frame thickness is about 0.005 inches to about 0.55 inches. Optionally, in this or any other embodiment, the frame thickness is at least about 0.005 inches. Optionally, in this or any other embodiment, the frame thickness is at most about 0.55 inches. Optionally, in this or any other embodiment, the cover thickness is about 0.08 inches to about 0.6 inches. Optionally, in this or any other embodiment, the cover thickness is at least about 0.08 inches. Optionally, in this or any other embodiment, the cover thickness is at most about 0.6 inches. Optionally, in this or any other embodiment, the cover depth is about 0.005 inches to about 0.55 inches. Optionally, in this or any other embodiment, the cover depth is at least about 0.005 inches. Optionally, in this or any other embodiment, the cover depth is at most about 0.55 inches. 
       FIG. 11A  shows a front cross-sectioned view of an alternative non-limiting example of a penile constriction device  1100  comprising a frame  1110  and a cover  1120 .  FIGS. 11B-H  show the manufacturing marks of penile constriction device  1100  of  FIG. 11A . As seen in  FIGS. 11A-H , at least a portion of the cover  1120  surrounds the frame  1110 . Per  FIGS. 11A-H , the cover  1120  of the penile constriction device  1100  comprises a first cover manufacturing mark  1121 , a second cover manufacturing mark  1123 , and a third cover manufacturing mark  1123 . 
       FIGS. 11J-L  show a non-limiting example of the frame  1220  of  FIG. 11A . Per  FIGS. 11J-L , the frame  1110  of the penile constriction device  1100  comprises a first frame manufacturing mark  1111 . Optionally, in this or any other embodiment, at least one of the first cover manufacturing mark  1121 , the second cover manufacturing mark  1123 , and the third cover manufacturing mark  1123  are configured to allow the cover  1210  to be over-molded around the frame  1110 . Optionally, in this or any other embodiment, at least one of the first cover manufacturing mark  1211 , the second cover manufacturing mark  1123 , and the third cover manufacturing mark  1123  comprise a witness mark. 
     As seen in  FIGS. 11J-L  the penile constriction device  1100  comprises the four first manufacturing marks  1121 , five second manufacturing marks  1123 , and ten third manufacturing marks  1123 . 
     Alternatively, the number of first cover manufacturing marks  1121  is optionally about 1 to about 10. Alternatively, the number of second cover manufacturing marks  1122  is optionally about 1 to about 10. Alternatively, the number of third cover manufacturing marks  1123  is optionally about 1 to about 20. 
       FIG. 12A  shows a front cross-sectioned view of another alternative non-limiting example of a penile constriction device comprising a frame and a cover  FIGS. 12B-H  show the manufacturing marks of penile constriction device of  FIG. 12A .  FIGS. 12J-L  show a non-limiting example of the frame of  FIG. 12A . 
       FIG. 13  shows a front cross-sectioned view of the veins and arteries in a human penis. Per  FIG. 13  the human penis  1300  comprises a superficial dorsal vein  1310 , a deep dorsal vein  1320 , deep arteries  1330 , a urethra  1340 , dorsal arteries  1350 , and dorsal nerves  1360 . The average human penis  1300  has a general cross section shape comprising an ellipse toward the top portion and a smaller ellipse cross section shape toward the bottom portion. Erection is enabled in men through increased blood flow into the penis  1300  through the deep arteries  1330 , and decreased blood flow out from the penis  1300  through the superficial dorsal vein  1310  and the deep dorsal vein  1320 . 
       FIG. 14  shows a front cross-sectioned view of a non-limiting example of a penile constriction device on a human penis. Optionally, in this or any other embodiment, at least one of the shape and elasticity of device  1400  is configured to prevent outwards blood flow from the penis  1300  to the body. Optionally, in this or any other embodiment, at least one of the shape and elasticity of device  1400  is configured to enable and/or not hinder blood flow from the body to the penis  1300 . 
     Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  1400  is configured to provide at least one of the non-uniform pressure and the selective non-uniform pressure is to at least one of a flaccid penis, a slightly flaccid penis, a slightly rigid penis, and an erect penis. Optionally, in this or any other embodiment, the at least one of the non-uniform pressure and the selective non-uniform pressure is to at least one of a flaccid penis, a slightly flaccid penis, a slightly rigid penis, and an erect penis  1300  enables the device to facilitate erection initiation. Optionally, in this or any other embodiment, at least one of the non-uniform pressure and the selective non-uniform pressure is to at least one of a flaccid penis, a slightly flaccid penis, a slightly rigid penis, and an erect penis  1300  enables to device  1400  to aid in erection stamina. Optionally, in this or any other embodiment, the at least one of the non-uniform pressure and the selective non-uniform pressure is to at least one of a flaccid penis, a slightly flaccid penis, a slightly rigid penis, and an erect penis  1300  enables to device  1400  to facilitate erection initiation and erection stamina. 
     Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  1400  is configured to provide at least one of the non-uniform pressure and the selective non-uniform pressure to compress at least one of the girth and the cross section area of a flaccid penis, a slightly flaccid penis, a slightly rigid penis, and an erect penis. 
     Optionally, in this or any other embodiment, at least one of the shape and elasticity of an arched rod  1450  is configured to a compress the penis  1300  against at least one of the first dorsal vein protrusion  1410 , the second dorsal vein protrusion  1420 , and the dorsal valley  1430 . Optionally, in this or any other embodiment, a compressive force applied to the penis  1300  by at least one of the first dorsal vein protrusion  1410 , the second dorsal vein protrusion  1420 , and the dorsal valley  1430 , constricts blood flowing out of the penis  1300  through at least the superficial dorsal vein  1310  and the deep dorsal vein  1320 . Optionally, in this or any other embodiment, a compressive force applied to the penis  1300  by at least one of the first dorsal vein protrusion  1410 , the second dorsal vein protrusion  1420 , and the dorsal valley  1430 , does not constrict at least one of the dorsal arteries  1350  and the urethra  1340 . Optionally, in this or any other embodiment, the device  1400  applies pressure to the veins of the penis to reduce blood flow out of the penis. This allows for the pressure to build up in the corpus cavernosa  1370  to achieve and/or maintain an erection. Optionally, in this or any other embodiment, the device  1400  has no negative effect on the dorsal nerve  1360 . 
     Optionally, in this or any other embodiment, the constriction gap width of the device  1400  is configured such that an erect or flaccid penis having an erect diameter and a flaccid diameter, respectively, can pass through the constriction gap. Optionally, in this or any other embodiment, the constriction gap width is configured such that an erect or flaccid penis, having an erect diameter and a flaccid diameter, respectively, can pass through the constriction gap when an opposing force is applied between the first converging end and the second converging end. Optionally, in this or any other embodiment, the device  1400  applies pressure to the veins of the penis to reduce blood outflow from the penis. Such outflow allows for the pressure to build up in the corpus cavernosa  1370  to achieve and or maintain an erection. Optionally, in this or any other embodiment, the device  1400  has no negative effect on the dorsal nerve. 
     Optionally, in this or any other embodiment, the constriction gap width is configured to impart minimal compressive force on the urethra, when worn on an erect penis. Optionally, in this or any other embodiment, the constriction height of the device  1400  is configured to impart minimal compressive force on the urethra  1340 , when worn on an erect penis. Optionally, in this or any other embodiment, the constriction height is configured to impart maximal compressive force on the deep arteries  1330 , on an erect or a flaccid penis having an erect diameter and a flaccid diameter, respectively. Optionally, in this or any other embodiment, the maximum inner width of the device  1400 , is configured to impart minimal or negligible compressive force on the deep arteries  1330 , the urethra  1340 , and the dorsal nerves  1360  of an erect or a flaccid penis having an erect diameter and a flaccid diameter, respectively. Optionally, in this or any other embodiment, the inferior height is configured to impart a significant compressive force on at least one of the superficial dorsal vein  1310  and the deep dorsal vein  1320 . Optionally, in this or any other embodiment, the thickness of the device  1400  is configured to provide at least one of a sufficient elasticity, rigidity, and pliability to enable the device  1400  to provide a specific pressure against an erect or a flaccid penis having an erect diameter and a flaccid diameter, respectively. 
     Optionally, in this or any other embodiment, at least one of the first dorsal vein protrusion  1410 , the second dorsal vein protrusion  1420 , and the dorsal valley  1430  are configured to apply no force, or a minimal force to at least one of the dorsal arteries  1350  and the urethra  1340 . Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to apply a non-uniform pressure to the penis  1300 . Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to apply a selective non-uniform pressure to the penis  1300 . Optionally, in this or any other embodiment, at least one of the non-uniform pressure and the selective non-uniform pressure is configured to allow at least one of blood and seminal fluids to flow into the penis  1300 . Optionally, in this or any other embodiment, at least one of the non-uniform pressure and the selective non-uniform pressure is configured to allow a user to perform Kegel exercises to increase blood flow into the penis  1300 . Optionally, in this or any other embodiment, at least one of the non-uniform pressure and the selective non-uniform pressure is configured to maintain the health of at least one of cells, arteries, and veins within the penis  1300 . Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to apply a greater or equal pressure to the penis  1300  at the compression region than by at least one of the first arm and the second arm. Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to apply less pressure to the penis  1300  at the compression region than by at least one of the first arm and the second arm. 
     Optionally, in this or any other embodiment, at least one of the dorsal vein valley distance, the compression region width, the first dorsal height, the second dorsal height, the maximum inner width, the constriction distance, and the constriction gap are configured to constrict blood flowing out of the penis  1300  through at least the superficial dorsal vein  1310  and the deep dorsal vein  1320 . Optionally, in this or any other embodiment, at least one of the dorsal vein valley distance, the compression region width, the first dorsal height, the second dorsal height, and the constriction gap are configured to apply no force, or a minimal force to at least one of the dorsal arteries  1350  and the urethra  1340 . Optionally, in this or any other embodiment, at least one of the dorsal vein valley distance, the compression region width, the first dorsal height, the second dorsal height, the maximum inner width, the constriction distance, and the constriction gap are configured to constricts blood flowing out of the penis  1300  through at least the superficial dorsal vein  1310  and the deep dorsal vein  1320  and to apply no force, or a minimal force to at least one of the dorsal arteries  1350  and the urethra  1340 . 
     Optionally, in this or any other embodiment, the elasticity of at least one of the first arm, the second arm, and the bridge enables the device  1400  to provide continuous pressure on both a flaccid and erect penis  1300 . Optionally, in this or any other embodiment, the pliability of at least one of the first arm, the second arm, and the bridge enables the device  1400  to provide continuous pressure on flaccid penis  1300  as it becomes erect. 
     Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to provide at least one of the non-uniform pressure and the selective non-uniform pressure that compresses at least one of the girth of the penis  1300  and the cross section area of the penis  1300  by at least about 10%. Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to provide at least one of the non-uniform pressure and the selective non-uniform pressure that compresses at least one of the girth of the penis  1300  and the cross section area of the penis  1300  by at most about 60%. Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to provide at least one of the non-uniform pressure and the selective non-uniform pressure that compresses at least one of the girth of the penis  1300  and the cross section area of the penis  1300  by about 10% to about 60%. Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to provide at least one of the non-uniform pressure and the selective non-uniform pressure that compresses at least one of the girth of the penis  1300  and the cross section area of the penis  1300  by about 15% to about 45%. Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to provide at least one of the non-uniform pressure and the selective non-uniform pressure that compresses at least one of the girth of the penis  1300  and the cross section area of the penis  1300  by about 37%. 
     Optionally, in this or any other embodiment, the negligible or minimal force applied by the device  100  on the dorsal arteries  1350  allows blood and oxygen to flow into the penis  1300   1300 , with or without the aid of Kegel exercises, which prevents damage to the cells of the penis  1300   1300  and to ensure their ability to achieve an erection. Optionally, in this or any other embodiment, the negligible or minimal force applied by the device  100  on the urethra  1340  enables the release of pre-seminal fluid that act as a lubricant during sexual intercourse. Optionally, in this or any other embodiment, the negligible or minimal force applied by the device  100  on the urethra  1340  prevents injaculation or retrograde ejaculation, wherein a blockage within the seminal vesicle causes semen to flow backwards into the bladder. Such injaculation causes infertility, by damaging the perineum, nerves, and blood vessels within the male reproductive system. Optionally, in this or any other embodiment, at least one of the first elbow  214  and the second elbow  224  are configured to prevent abrasion or lacerations of the penis  1300 . 
     Optionally, in this or any other embodiment, at least one of the shape and elasticity of the device  100  is configured to avoid inhibiting male pleasure during intercourse. Optionally, in this or any other embodiment, at least one of the first dorsal vein protrusion, the second dorsal vein protrusion, and the dorsal valley are configured to prevent rotation of the device  100  about the penis  1300 . 
     Penile Constriction Systems 
       FIG. 15A  shows a front view of a non-limiting example of a penile constriction system comprising an exemplary penile constriction device and a band.  FIG. 15B  shows a front view of a non-limiting example of a penile constriction system comprising an exemplary penile constriction device and a high tension band. Provided herein, per  FIGS. 15A-B , is a system comprises a penile constriction device  100  and a band  1500 . Optionally, in this or any other embodiment, the band  1500  is configured to attach to the first converging end  212  and the second converging end  212  of the device  100 . Optionally, in this or any other embodiment, the band  1500  is configured to attach to the first elbow  214  and at least one of the second elbow  224 , the second converging end  222 , and the second terminus  223  of the device  100 . Optionally, in this or any other embodiment, the band  1500  is configured to attach to the first converging end  212  and at least one of the second elbow  224 , the second converging end  222 , and the second terminus  223  of the device  100 . Optionally, in this or any other embodiment, the band  1500  is configured to attach to the first terminus  213  and at least one of the second elbow  224 , the second converging end  222 , and the second terminus  223  of the device  100 . 
     Penile Constriction Bands 
     Optionally, in this or any other embodiment, at least one of the first arm  210 , the second arm  220 , the first converging end  212 , the second converging end  222 , first elbow  214 , and the second elbow  224  of the arched rod device  100  is configured to couple to a band  1500 . Optionally, in this or any other embodiment, the arched rod  250  does not comprise the band  1500 . Optionally, in this or any other embodiment, the penile constriction device  100  does not comprise the band  1500 . 
     Optionally, in this or any other embodiment, the band  1500  is configured to removably attach, temporarily attach, or both to the device  100 . Optionally, in this or any other embodiment, the band  1500  is rigidly attached to the device  100 . Optionally, in this or any other embodiment, the band is separate and distinct from the device. Optionally, in this or any other embodiment, the band is not rigidly attached to the device. Optionally, in this or any other embodiment, the band is removably attached to the first converging end, the second converging end, or the bridge of the device  100 . 
     Optionally, in this or any other embodiment, the band  1500  is configured to impart a compressive force between the first converging  212  and the second converging  212  of the device  100 . Optionally, in this or any other embodiment, the band  1500  is configured to impart a compressive force between the first elbow  214  and the second elbow  224  of the device  100 . Optionally, in this or any other embodiment, the band  1500  is configured to impart a compressive force between the first converging  212  and the second elbow  224  of the device  100 . Optionally, in this or any other embodiment, the band  1500  is configured to impart a compressive force between the second converging  212  and the first elbow  214  of the device  100 . 
     Optionally, in this or any other embodiment, per  FIG. 15A , the band  1500  comprises a low tension band  1500 A. Alternatively, in this or any other embodiment, per  FIG. 15B , the band  1500  comprises a high tension band  1500 B, wherein the high tension band  1600  is configured to impart a greater force between the first arm  210  and the second arm  220  than the low tension band  1500 . 
     Optionally, in this or any other embodiment, the band  1500  is configured to provide increased penile compressive force. Optionally, in this or any other embodiment, the penile compressive force compresses the cross section area of the penis by at least about 10%. Optionally, in this or any other embodiment, the penile compressive force compresses the cross section area of the penis by at most about 60%. Optionally, in this or any other embodiment, the penile compressive force compresses the cross section area of the penis by about 10% to about 60%. Optionally, in this or any other embodiment, the penile compressive force compresses the cross section area of the penis by about 37%. Optionally, in this or any other embodiment, the increased penile compressive force prevents the device  100  from rotating or translating from its originally worn position during intercourse. 
     Optionally, in this or any other embodiment, per  FIG. 15A , the shape and elasticity of at least one of the band  1500  and the device  100  are configured such that, the shape of the device is relatively undeformed when the band  1500  is affixed to the device  100 . Optionally, in this or any other embodiment, the shape and elasticity of at least one of the band  1500  and the device  100  are configured such that the band  1500  only slightly increases the penile compressive force (e.g. by less than about 10%), whereby the band  1500  is configured to increase device  100  stability about the penis by acting as a friction surface. 
     Optionally, in this or any other embodiment, per  FIG. 15B , the shape and elasticity of at least one of the band  1500  and the device  100  are configured such that, the shape of the device is significantly deformed when the band  1500  is affixed to the device  100 . Optionally, in this or any other embodiment, the shape and elasticity of at least one of the band  1500  and the device  100  are configured such that the band  1500  substantially increases the penile compressive force (e.g. by more than about 10%), whereby the band  1500  is configured to decrease at least one of the constriction gap, the constriction height, the maximum inner width, and the inferior height of the device  100 . Optionally, in this or any other embodiment, the shape and elasticity of at least one of the band  1500  and the device  100  are configured such that, the shape of the device is significantly deformed when the band  1500  is affixed to the device  100 , to allow the device  100  to be employed on a penis with a smaller girth or circumference. 
     Optionally, in this or any other embodiment, per  FIG. 15A , the band  1500  comprises a band width  1501 . Optionally, in this or any other embodiment, the band width  1501  is about 0.1 inches to about 1.5 inches. Optionally, in this or any other embodiment, the band width  1501  is at least about 0.1 inches. Optionally, in this or any other embodiment, the band width  1501  is at most about 1.5 inches. Optionally, in this or any other embodiment, the band  1500  has a spring constant of about 0.1 pounds/inches to about 1 pound/inch. Optionally, in this or any other embodiment, the band  1500  has a spring constant of at least about 0.1 pounds/inches. Optionally, in this or any other embodiment, the band  1500  has a spring constant of at most about 1 pound/inch. 
     Optionally, in this or any other embodiment, the band  1500  is elastic. Optionally, in this or any other embodiment, the band  1500  is inelastic. Optionally, in this or any other embodiment, the band  1500  is rigid. Optionally, in this or any other embodiment, the band  1500  comprises a spring, a loop, a cam, a hook or any combination thereof. Optionally, in this or any other embodiment, the bands herein are soft to the touch and/or non-abrasive. Optionally, in this or any other embodiment, the bands herein are non-allergenic. Optionally, in this or any other embodiment, the bands herein are formed from a material that is washable. Optionally, in this or any other embodiment, the bands herein have a sufficient tensile strength to prevent breaking or tearing when installing the band between the first elbow and the second elbow of the device  100 . Optionally, in this or any other embodiment, the bands herein have a sufficient modulus of elasticity such that the band can be stretched by hand over first converging end and the second converging end and onto the first elbow and the second elbow of the device  100 . Optionally, in this or any other embodiment, the bands herein have a sufficient durometer to prevent breaking or tearing during over-extension and frequent reuse. Optionally, in this or any other embodiment, a surface of the bands herein have a texture that prevents the bands from sliding off the device  100 . 
     Optionally, in this or any other embodiment, the bands herein are formed from a thermoplastic elastomer. Optionally, in this or any other embodiment, the band comprises rubber, plastic, metal, wood, silicone, Kevlar, string, fabric, or any combination thereof. Optionally, in this or any other embodiment, the band comprises plastic, glass, wood, metal, carbon fiber, fiberglass, or any combination thereof. Optionally, in this or any other embodiment, the band comprises polyamide, polycarbonate, polyester, polyethylene, polyethylene terephthalate, polypropylene, polystyrene, polyurethanes, polyvinyl chloride, polyvinylidene chloride acrylonitrile butadiene styrene acrylonitrile butadiene styrene, polyethylene/acrylonitrile butadiene styrene, polyepoxide, polymethyl methacrylate, polytetrafluoroethylene, phenolics melamine formaldehyde urea-formaldehyde, polyetheretherketone, maleimide/bismaleimide, polyetherimide, polyimide, polylactic acid, furan silicone, polysulfone, or any combination thereof. Optionally, in this or any other embodiment, the bands herein are not formed from PVC, latex, phthalates, or any combination thereof. 
       FIGS. 47-52  show non-limiting exemplary images of a primary band  1500  penile constriction device herein.  FIG. 47  shows a non-limiting exemplary image of a low tension primary band  1500 A.  FIG. 48  shows a non-limiting exemplary image of a high tension primary band  1500 B. Per  FIG. 49  the primary band  1500  comprises a hoop  1510 , a first tab  1520 A, and a second tab  1520 B. Per  FIG. 51 , the secondary band  1600  an elongated hoop  1510 , the first tab  1520 A, and the second tab  1520 B. As shown, the first tab  1520 A, and the second tab  1520 B have equal tab lengths from their distal edges to their intersection with the hoop  1610 . Alternatively, in this or any other embodiment, the tab length of the first tab  1520 A is greater than the tab length of the second tab  1520 B. Alternatively, in this or any other embodiment, the tab length of the first tab  1520 A is less than the tab length of the second tab  1520 B. 
     As shown per  FIG. 50B , the tabs  1520 A  1520 B extend perpendicularly from a center axis  1511  of the hoop  1510  from opposite sides of the hoop  1510 . Alternatively, in this or any other embodiment, the primary band  1500  comprises 3, 4, 5, 6 or more tabs. Alternatively, in this or any other embodiment, the tabs  1520 A  1520 B extend parallel to a center axis  1511  of the hoop  1510  from opposite sides of the hoop  1510 . The tabs  1520 A  1520 B provide a grip for a user to place the primary band  1500  on the device. Optionally, in this or any other embodiment, an upper surface, a lower surface, or both of one or more of the first tab  1520 A and the second tab  1520 B has a raised or embossed texture for increased grip. 
     As shown, the primary band  1500  has a depth  1501  measured from a front surface to a back surface of the primary band  1500 . Optionally, in this or any other embodiment, the depth  1501  is measured as a minimum depth, a maximum depth, or an average depth. As shown, the hoop  1510  and the tabs  1520 A  1520 B have equal depths  1501 . Optionally, in this or any other embodiment, a depth  1501  of the hoop  1510  is greater than a depth  1501  of the tabs  1520 A  1520 B. Optionally, in this or any other embodiment, a depth  1501  of the hoop  1510  is less than a depth  1501  of the tabs  1520 A  1520 B. 
     Further per  FIG. 50B , the primary band  1500  has a width  1502  measured from a distal surface of the first tab  1520 A to a distal surface of the second tab  1520 B. Alternatively, in this or any other embodiment, the width  1502  is measured as a maximum, an average, or a minimum distance from a distal surface of the first tab  1520 A to the distal surface of the second tab  1520 B. Alternatively, in this or any other embodiment, the width  1502  is measured as a maximum, an average, or a minimum width of the primary band  1500 . Optionally, in this or any other embodiment, the width  1502  is measured when the primary band  1500  is at rest and not applied to the device. 
     As shown, the hoop  1510  of the primary band  1500  has an outer diameter  1503 . Optionally, in this or any other embodiment, the outer diameter  1503  is measured as a maximum, an average, or a minimum outer diameter of the hoop  1510 . Optionally, in this or any other embodiment, the outer diameter  1503  is measured as a maximum, an average, or a minimum outer diameter of a portion of the hoop  1510  not connected to the tabs  1520 A  1520 B. Optionally, in this or any other embodiment, the outer diameter  1503  is measured when the primary band  1500  is at rest and not applied to the device. 
     Also as shown, the tabs  1520 A  1520 B have a tab thickness  1504  measured as a distance between opposing faces of each of the tabs  1520 A  1520 B. Optionally, in this or any other embodiment, the tab thickness  1504  is measured as a maximum, an average, or a minimum thickness of the tabs  1520 A  1520 B. Optionally, in this or any other embodiment, the first tab  1520 A and the second tab  1520 B have the same the tab thickness  1504 . Optionally, in this or any other embodiment, the first tab  1520 A has a greater tab thickness  1504  than the second tab  1520 B. Optionally, in this or any other embodiment, the first tab  1520 A has a smaller tab thickness  1504  than the second tab  1520 B. Optionally, in this or any other embodiment, the tab thickness  1504  is uniform from a distal edge to a proximal edge of the tabs  1520 A  1520 B. Optionally, in this or any other embodiment, the tab thickness  1504  is measured when the primary band  1500  is at rest and not applied to the device. 
     Further, per  FIG. 50B  the hoop  1510  has a hoop thickness  1505  measured as a normal distance between an outer surface and an inner surface of the hoop  1510 . Optionally, in this or any other embodiment, the hoop thickness  1505  is measured as a maximum, an average, or a minimum distance. Optionally, in this or any other embodiment, the hoop thickness  1505  is equal across the circumference of the hoop  1510 . Optionally, in this or any other embodiment, the hoop thickness  1505  varies across the circumference of the hoop  1510 . Optionally, in this or any other embodiment, the hoop thickness  1505  is measured when the primary band  1500  is at rest and not applied to the device. 
       FIGS. 51 and 52  show exemplary illustrations of a secondary band  1600 . As shown, the secondary band  1600  comprises an elongated hoop  1610 , a first secondary tab  1620 A, a second secondary tab  1620 B. Further as shown, the first secondary tab  1620 A and the second secondary tab  1620 B extend outwards from opposite sides of the elongated hoop  1610 . Per  FIG. 52 , the secondary band  1600  has an elongated width  1602 . Optionally, in this or any other embodiment, the elongated width  1602  is measured from a distal surface of the first secondary tab  1620 A to a distal surface of the second secondary tab  1620 B. Alternatively, in this or any other embodiment, the width  1602  is measured as a maximum, an average, or a minimum distance from a distal surface of the first secondary tab  1620 A to the distal surface of the second secondary tab  1620 B. Alternatively, in this or any other embodiment, the elongated width  1602  is measured as a maximum, an average, or a minimum width of the secondary band  1600 . Optionally, in this or any other embodiment, the width  1602  is measured when the secondary band  1600  is at rest and not applied to the device. Further as shown, the secondary tabs  1620 A  1620 B have a tab thickness  1604  measured as a distance between opposing faces of each of the secondary tabs  1620 A  1620 B. Optionally, in this or any other embodiment, the tab thickness  1604  is measured as a maximum, an average, or a minimum thickness of the secondary tabs  1620 A  1620 B. Optionally, in this or any other embodiment, the first secondary tab  1620 A and the second secondary tab  1620 B have the same the tab thickness  1604 . Optionally, in this or any other embodiment, the first secondary tab  1620 A has a greater tab thickness  1604  than the second secondary tab  1620 B. Optionally, in this or any other embodiment, the first secondary tab  1620 A has a smaller tab thickness  1604  than the second secondary tab  1620 B. Optionally, in this or any other embodiment, the tab thickness  1604  is uniform from a distal edge to a proximal edge of the secondary tabs  1620 A  1620 B. Optionally, in this or any other embodiment, the tab thickness  1604  is measured when the secondary band  1600  is at rest and not applied to the device. Also as shown, the first secondary tab  1620 A, and the second secondary tab  1620 B have equal tab lengths  1607  from their distal edges to their intersection with the hoop  1610 . Alternatively, in this or any other embodiment, the tab length  1607  of the first secondary tab  1620 A is greater than the tab length  1607  of the second secondary tab  1620 B. Alternatively, in this or any other embodiment, the tab length  1607  of the first secondary tab  1620 A is less than the tab length  1607  of the second secondary tab  1620 B. Optionally, in this or any other embodiment, the elongated width  1602  is about 1 inch to about 2 inches. Optionally, in this or any other embodiment, the tab thickness  1604  is about 0.04 inches to about 0.08 inches. Optionally, in this or any other embodiment, the tab length  1607  is about 0.2 inches to about 0.3 inches. 
     Optionally, in this or any other embodiment, the primary band  1500  comprises a high tension primary band  1500 A. Optionally, in this or any other embodiment, the primary band  1500  comprises a low tension primary band  1500 B. 
     Optionally, in this or any other embodiment, the high tension primary band  1500 A has one or more of a depth  1501  of about 0.1 inches to about 0.4 inches, a width  1502  of about 0.7 inches to about 1.0 inches, an outer diameter  1503  of about 0.2 inches to about 0.6 inches, a tab thickness  1504  of about 0.05 inches to about 0.1 inches, and a hoop thickness  1505  of about 0.05 inches to about 0.1 inches. Optionally, in this or any other embodiment, the high tension primary band  1500 A has one or more of a depth  1501  of at least about 0.1 inches, a width  1502  of at least about 0.7 inches, an outer diameter  1503  of at least about 0.2 inches, a tab thickness  1504  of at least about 0.05 inches, and a hoop thickness  1505  of at least about 0.05 inches. Optionally, in this or any other embodiment, the high tension primary band  1500 A has a depth  1501  of at most about 0.4 inches, a width  1502  of at most about 1.0 inches, an outer diameter  1503  of at most about 0.6 inches, a tab thickness  1504  of at most about 0.1 inches, and a hoop thickness  1505  of at about 0.1 inches. 
     Optionally, in this or any other embodiment, the low tension primary band  1500 B has a depth  1501  of about 0.1 inches to about 0.4 inches, a width  1502  of about 0.8 inches to about 1.4 inches, an outer diameter  1503  of about 0.4 inches to about 1.5 inches, a tab thickness  1504  of about 0.05 inches to about 0.1 inches, and a hoop thickness  1505  of about 0.05 inches to about 0.1 inches. Optionally, in this or any other embodiment, the low tension primary band  1500 B has a depth  1501  of at least about 0.1 inches, a width  1502  of at least about 0.8 inches, an outer diameter  1503  of at least about 0.4 inches, a tab thickness  1504  of at least about 0.05 inches, and a hoop thickness  1505  of at least about 0.05 inches. Optionally, in this or any other embodiment, the low tension primary band  1500 B has a depth  1501  of at most about 0.4 inches, a width  1502  of at most about 1.4 inches, an outer diameter  1503  of at most about 1.5 inches, a tab thickness  1504  of at most about 0.05 inches to about 0.1 inches, and a hoop thickness  1505  of at most about 0.1 inches. 
     Methods For Using the Penile Constriction Devices Herein 
     Further provided herein, per  FIGS. 16A-C , are methods for using a penile constriction device for alleviating erectile dysfunction (ED).  FIG. 16A  shows a perspective view a non-limiting example of a penile constriction device on a flaccid human penis.  FIG. 16B  shows a perspective view a non-limiting example of a penile constriction device and a band on a flaccid human penis.  FIG. 16C  shows a perspective view a non-limiting example of a penile constriction device and a band on an erect human penis. Optionally, in this or any other embodiment, the penile constriction device comprises an arched rod. Optionally, in this or any other embodiment, the arched rod comprises a first arm, a second arm, and a bridge. Optionally, in this or any other embodiment, the first arm comprises at least one of a first coupling end and a first converging end having a first terminus. Optionally, in this or any other embodiment, the second arm comprises at least one of a second coupling end and a second converging end having a second terminus. Optionally, in this or any other embodiment, the second terminus is disconnected from the first terminus. Optionally, in this or any other embodiment, the first converging end and the second converging end converge to form a constriction region. Optionally, in this or any other embodiment, the bridge connects the first coupling end to the second coupling end. Optionally, in this or any other embodiment, the bridge comprises a plurality of friction protrusions on a superior side of the bridge. Optionally, in this or any other embodiment, the bridge comprises a compression region rising inferiorly from an inferior side of the bridge. 
     Optionally, in this or any other embodiment, the method comprises applying a force between the first terminus and the second terminus of the device  100  to increase a constriction gap between the first converging end and the second converging end, and passing the penis through the constriction gap. Optionally, in this or any other embodiment, the method comprises applying a force between the first coupling end and the second coupling end to increase the constriction gap. 
     Optionally, in this or any other embodiment, per  FIG. 16A , the method further comprises passing the penis through the constriction gap of the device  100 . Optionally, in this or any other embodiment, the method further comprises moving the device  100  to the proximal base of the penis. Optionally, in this or any other embodiment, the method further comprises aligning the device such that at least one of the friction protrusions and the compression region are oriented on the penis opposite the testis. 
     Optionally, in this or any other embodiment, per  FIGS. 16B-C , the method further comprises installing a band  1500  on the device  100 . Optionally, in this or any other embodiment, installing a band  1500  on the device comprises installing the band  1500  between the first elbow and the second elbow of the device  100 . Optionally, in this or any other embodiment, installing a band  1500  on the device comprises installing the band  1500  over the first terminus and over the second terminus of the device  100 . Optionally, in this or any other embodiment, installing a band  1500  on the device comprises installing the band  1500  within the constriction region of the device  100 . 
     Methods for Selecting a Penile Constriction Device 
     Additionally, provided herein, is a method for selecting a penile constriction device. 
     
       
         
           
               
               
               
               
             
               
                 TABLE 1 
               
             
            
               
                   
               
               
                 General 
                 Girth 
                 Circular Diameter 
                 Cross-Sectional Area 
               
            
           
           
               
               
               
               
               
               
               
            
               
                 Penis Size 
                 Flaccid 
                 Erect 
                 Flaccid 
                 Erect 
                 Flaccid 
                 Erect 
               
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 A 
                 Min 
                 2.990 
                 3.750 
                 0.952 
                 1.194 
                 0.712 
                 1.119 
               
               
                   
                 Max 
                 3.373 
                 4.230 
                 1.074 
                 1.346 
                 0.905 
                 1.424 
               
               
                 B 
                 Min 
                 3.373 
                 4.230 
                 1.074 
                 1.346 
                 0.905 
                 1.424 
               
               
                   
                 Max 
                 3.692 
                 4.630 
                 1.175 
                 1.474 
                 1.085 
                 1.706 
               
               
                 C 
                 Min 
                 3.692 
                 4.630 
                 1.175 
                 1.474 
                 1.085 
                 1.706 
               
               
                   
                 Max 
                 4.003 
                 5.020 
                 1.274 
                 1.598 
                 1.275 
                 2.005 
               
               
                 D 
                 Min 
                 4.003 
                 5.020 
                 1.274 
                 1.598 
                 1.275 
                 2.005 
               
               
                   
                 Max 
                 4.633 
                 5.810 
                 1.475 
                 1.849 
                 1.708 
                 2.686 
               
               
                   
               
            
           
         
       
     
     To ensure proper fit for a wide range of human anatomies, devices herein can be configured with an array of dimensions and shapes. Table 1, above, shows that penile anatomical dimensions can be categorized into four groups to allow for easy selection of the proper sized device by a user. As the devices provided herein are flexible and configured to impart a pressure force against a portion of the erect or flaccid penis, the recommended size and shape for a particular user correlates to the size of their particular anatomy, as well as the severity of their erectile dysfunction conditions. 
     Optionally, in this or any other embodiment, the method comprises at least one of a user and a medical practitioner measuring at least one of a circular diameter and a girth of a user&#39;s erect or flaccid penis, and selecting a penile constriction device associated with at least one of the circular diameter and the girth of a user&#39;s penis according to the information provided in Table 1. Optionally, in this or any other embodiment, the method comprises the user estimating or measuring the size of their erect or flaccid penis as belonging to two or more general sizes, and selecting a penile constriction device associated with the general size. Optionally, in this or any other embodiment, the method further comprises the user trying the selected penile construction device to confirm a proper fit and comfortability. Optionally, in this or any other embodiment, the method further comprises the user trying the selected penile construction device and the band to confirm a proper fit and comfortability. Optionally, in this or any other embodiment, trying the selected penile construction device to confirm a proper fit and comfortability comprises confirming that the penile construction device does not freely rotate about at least one of the user&#39;s flaccid penis, and the user&#39;s erect penis. Optionally, in this or any other embodiment, trying the selected penile constriction device to confirm a proper fit and comfortability comprises performing vaginal intercourse, anal intercourse, oral sex, or masturbation with the device installed. 
     Methods for Selecting a Penile Constriction Band 
     Additionally, provided herein, is a method for selecting a band for a penile constriction device. Optionally, in this or any other embodiment, the method comprises selecting a low tension band or a high tension band. Optionally, in this or any other embodiment, the method comprises trying on the device with the low tension band and replacing the low tension band with the high tension band if the device significantly shifts during intercourse with the low tension band is employed. Optionally, in this or any other embodiment, the method comprises trying on the device with the high tension band and replacing the high tension band with the low tension band if the device is uncomfortable with the high tension band employed. Optionally, in this or any other embodiment, the method further comprises selecting a size of the low tension band or the high tension band based on the device size. 
     Methods for Using the Penile Constriction Band Herein 
     Further provided herein, are methods for using the bands herein. In one embodiment, the method comprises a user pinching the first tab between two of their fingers of a first hand, pinching the second tab between two of their fingers of a second hand, and inserting the first converging end and the second converging end of the device herein into the hoop of the band, such that the band rests between the first elbow and the second elbow of the device. In one embodiment, the method comprises a user pinching the first tab between two of their fingers of a first hand, pinching the second tab between two of their fingers of a second hand, inserting the first converging end of the device herein into the hoop of the band, and inserting the second converging end of the device herein into the hoop of the band, such that the band rests between the first elbow and the second elbow of the device. Optionally, in this or any other embodiment, the two fingers comprise a thumb and a pointer finger. Optionally, in this or any other embodiment, the band is installed onto the device while the user wears the device. Optionally, in this or any other embodiment, the band is installed onto the device while the user is not wearing the device. 
     Kits Comprising a Penile Constriction Device 
     Finally, provided herein is a kit comprising a penile constriction device and instructions for using the device to alleviate erectile dysfunction (ED). Optionally, in this or any other embodiment, the penile constriction device comprises an arched rod comprising: a first arm comprising a first coupling end and a first converging end having a first terminus; a second arm comprising a second coupling end, and a second converging end having a second terminus disconnected from the first terminus, wherein the first converging end and the second converging end converge to form a constriction region; and a bridge connecting the first coupling end to the second coupling end, the bridge comprising a plurality of friction protrusions on a superior side of the bridge, and a compression region rising inferiorly from an inferior side of the bridge. 
     Optionally, in this or any other embodiment, the kit further comprises at least one of: a box, a low tension band, a high tension band, printed Instructions for Use, and “Date Night” content series. Optionally, in this or any other embodiment, the band is configured to attach to the first coupling end and the second coupling end to provide increased penile compressive force. Optionally, in this or any other embodiment, the box comprises a label. Optionally, in this or any other embodiment, the container comprises a plurality of segments. Optionally, in this or any other embodiment, the measuring tool comprises at least one of a ruler, a tape, a jig, and a caliper. Optionally, in this or any other embodiment, the cleaning element comprises an alcohol pad, a wet pad, alcohol, or any combination thereof. 
     In one example a 1-Pack kit is assembled by: 
     1) Placing 1 device into three separate inner boxes
         2) Placing 3 high tension bands and 3 low tension bands in a plastic polyfold bag, and place the bag into an inner box, and repeat two more times, so that there are 3 boxes with 6 bands each   3) Placing 2 inner boxes along with 1 Filler Box into the Main Box, creating a snug square of inner boxes inside the bottom layer of the Main Box   4) Placing 2 inner boxes with the devices into the Main Box, creating another snug square of inner boxes on top of the bottom tow inner boxes and 1 filler Box   5) Placing 2 inner boxes with bands into the Main Box, creating another snug square of inner boxes on top of the bottom tow inner boxes and 1 filler Box   6) Placing a printed instruction booklet on top of inner boxes   7) Closing a flap and slide Outer Sleeve over main box   8) Placing a UPC sticker on the text that states “PLACE UPC HERE”   9) Placing a UDI sticker on the text that states “PLACE UDI HERE”   10) Putting a shrink-wrap around entire closed box container and sleeve       

     In one example a 2-Pack kit is assembled by:
         1) Placing 2 devices into three separate inner boxes   2) Placing 3 high tension bands and 3 low tension bands in a plastic polyfold bag, and place the bag into an inner box, and repeat two more times, so that there are 3 boxes with 6 bands each   3) Placing 2 inner boxes along with 1 Filler Box into the Main Box, creating a snug square of inner boxes inside the bottom layer of the Main Box   4) Placing 2 inner boxes with the devices into the Main Box, creating another snug square of inner boxes on top of the bottom tow inner boxes and 1 filler Box   5) Placing 2 inner boxes with bands into the Main Box, creating another snug square of inner boxes on top of the bottom tow inner boxes and 1 filler Box   6) Placing a printed instruction booklet on top of inner boxes   7) Closing a flap and slide Outer Sleeve over main box   8) Placing a UPC sticker on the text that states “PLACE UPC HERE”   9) Placing a UDI sticker on the text that states “PLACE UDI HERE”   10) Putting a shrink-wrap around entire closed box container and sleeve       

     In one example a 3-Pack kit is assembled by:
         1) Placing 3 devices into three separate inner boxes   2) Placing 3 high tension bands and 3 low tension bands in a plastic polyfold bag, and place the bag into an inner box, and repeat two more times, so that there are 3 boxes with 6 bands each   3) Placing 2 inner boxes along with 1 Filler Box into the Main Box, creating a snug square of inner boxes inside the bottom layer of the Main Box   4) Placing 2 inner boxes with the devices into the Main Box, creating another snug square of inner boxes on top of the bottom tow inner boxes and 1 filler Box   5) Placing 2 inner boxes with bands into the Main Box, creating another snug square of inner boxes on top of the bottom tow inner boxes and 1 filler Box   6) Placing a printed instruction booklet on top of inner boxes   7) Closing a flap and slide Outer Sleeve over main box   8) Placing a UPC sticker on the text that states “PLACE UPC HERE”   9) Placing a UDI sticker on the text that states “PLACE UDI HERE”   10) Putting a shrink-wrap around entire closed box container and sleeve       

     In one example a 4-Pack kit is assembled by:
         1) Placing 4 devices into four separate inner boxes   2) Placing 3 high tension bands and 3 low tension bands in a plastic polyfold bag, and place the bag into an inner box, repeat three more times, so that there are 4 boxes with 6 bands each   3) Placing 4 inner boxes with the devices into the Main Box, creating a snug square of boxes along the bottom layer of the Main Box   4) Placing 4 inner boxes with bands on top of the 4 devices, creating another snug square of inner boxes on top of the bottom four inner boxes   5) Placing a printed instruction booklet on top of inner boxes   6) Closing flap and slide Outer Sleeve over main box   7) Placing an UPC sticker on the text that states “PLACE UPC HERE”   8) Placing an UDI sticker on the text that states “PLACE UDI HERE”   9) Putting a shrink-wrap around entire closed box container and sleeve       

     In some embodiments, the instruction booklet, per  FIGS. 31-46  contains the following instructions: 
     About your ED Device 
     Intended Use
         This device is intended to maintain penile rigidity in men with erectile dysfunction (ED). The device is intended to be placed around the base of the penis for the duration of sexual intercourse, to restrict venous blood flow leaving the penis, to maintain sufficient penile rigidity for sexual intercourse. This product is intended for use by men ages 18+.       

     Manual Safety Release
         Constriction from the device can be manually released by removing the tension band from the legs of the device, then widening the legs of the device, and removing the device from the penis with two hands.       

     Pliable Materials
         Your device was designed to minimize the risk of injury to yourself and your partner when used as intended, by using soft, medical grade materials including polycarbonate coated in medical-grade proprietary thermoplastic elastomer (TPE). Your device was designed to be body-safe and is free of Polyvinyl Chloride (PVC), latex, and phthalates.       

     Shape &amp; Surface Design
         Your device features a smooth, oval-shaped design that conforms to the natural shape of the penis. There are special protrusions (dorsal apexes) on your device designed to provide pressure on the dorsal vein for assisting with achieving and maintaining erections. Your device also features small protrusions (enhancement ridges) designed to provide added stimulation for female partners.       

     Instructions for Use 
     Important: Read these instructions before using your device
         Please refer to Giddy&#39;s Size Calculator (GetMeGiddy.com/Size-Calculator), to determine the appropriate sizing for your device. Please note that improper use of the Size Calculator can result in the improper sizing of your device, which can increase the risk of damage, injury, or lessened effect of the device. Please contact support at customercare@getmegiddy.com for assistance. 1. Place the device at the base of the shaft of your penis, in front of the testicles, with the opening facing down. The device is reversible; your penis can be inserted into either side.   2. Once your device is around the base of your penis, apply one of the variable-strength tension bands.   3. The device can be applied safely whether your penis is flaccid (soft) or erect (hard). When an erection can be achieved but not maintained, the device can be used alone, or when creating an erection is not possible, it can be used in conjunction with vacuum pumps       

     How to Clean the Device
         Follow all instructions for cleaning, storing, and transporting the device and Tension Bands between uses. Rinse the device and any used Tension Bands with warm water. Then lather them with a non-abrasive, anti-bacterial soap. Avoid using bleach, chlorine, or any chemicals that could irritate the skin. Always take into account any allergies you or your partner may have while using and cleaning your device and Tension Bands. Once lathered with soap and thoroughly washed with a washcloth or clean hands, rinse your device and Tension Bands again. Dry them using a paper towel, a towel, or air-dry. It is recommended to replace your device every 4 months depending on your frequency of use.       

     Warnings
         Consult a physician if any complications occur for you or your partner.   Discontinue use of the device if complications continue for you or your partner.   When using lubricants with the device, use water-based, oil-based, or silicone-based lubricants only.   Do not fall asleep while wearing the device, since prolonged use may cause permanent injury to the penis.   Allow at least 60 minutes between uses, as more frequent use may increase the risk of injury to the penis.   It is not recommended to use the same device with multiple partners if one partner is diagnosed with a sexually transmitted infection or other contagious medical conditions.   This device does not prevent pregnancy.   This device does not protect against sexually transmitted infections.   Do not use the device under the influence of alcohol or drugs, since such use may impair your judgment and increase the risk of injury to the penis.   Misuse of the device may cause bruising, painful injury, or permanent damage to the penis.       

     Delayed Diagnosis of Other Conditions
         If you have symptoms of erectile dysfunction (the inability to achieve an erection that is sufficient for sexual intercourse), consult your physician prior to using this device to avoid a potentially harmful delay in diagnosing any of the most common causes of this condition, such as diabetes, multiple sclerosis, cirrhosis of the liver, chronic renal failure, or alcoholism.       

     Use with Impaired Pain Perception
         Do not use this device if you have decreased sensation of pain in the area of the penis, to avoid accidental injury as a result of lack of sensation.       

     Use with Decreased Hand Strength
         Do not use the device if you have decreased hand strength because this may make removal of the device difficult. An alternative method for applying the device for users with reduced hand strength is to wrap the Tension Band around the legs of the device before placing it on your penis. Using two hands, pull apart the legs of the device, holding them apart slightly to create a wider opening, while sliding the device onto your penis. To avoid damaging the device, use caution not to pull apart the legs too far.   For a second alternative method, cover the device in lubricant, and slide it onto your penis until it reaches the base. Feel free to use any water-based, oil-based, or silicone-based lubricants. If you experience any pain or bruising, stop and consult your physician before continuing use.       

     Precautions
         Use of the device may aggravate already existing medical conditions such as Peyronie&#39;s disease (the formation of hardened tissue in the penis that causes pain, curvature, and distortion, usually during erection); priapism (persistent, usually painful erection of the penis as a consequence of disease and not related to sexual arousal); and urethral strictures (urethral stricture is an area of hardened tissue, which narrows the urethra sometimes making it difficult to urinate).   Limit use of the device to no longer than 30 minutes per use.   Prolonged use of the device (i.e., without removal) may cause permanent injury to the penis.   Device use may bruise or rupture the blood vessels within the penis or scrotum, resulting in petechiae (a small purplish spot on a body surface, such as the skin or a mucous membrane, caused by a minute hemorrhage), hemorrhage (flow of blood from ruptured blood vessels), or the formation of a hematoma (localized swelling filled with blood resulting from a break in a blood vessel).   Use the least constrictive device size that maintains an erection, since excessive constriction could injure the penis. See previous information regarding the Size Calculator.       

     Alternative Treatment Methods 
     Alternative treatment methods for erectile dysfunction include counseling, drug therapy, hormonal therapy, vascular surgery, and implanted prosthetic devices. Contact your physician for more information regarding these alternative treatments. In some embodiments, the kit may further include further instructions to treat erectile dysfunction through, per  FIGS. 25-30 , diet, stress relief, exercise, nutrition, Kegel exercises, and tracking. 
     Optionally, in this or any other embodiment, the number of penile constriction devices is 1 to 500. Optionally, in this or any other embodiment, the penile constriction devices comprises two or more different sizes, models or and/or shapes of penile constriction devices. Optionally, in this or any other embodiment, the two or more different sizes, models or and/or shapes of penile constriction devices are color coded. Optionally, in this or any other embodiment, the two or more different sizes, models or and/or shapes of penile constriction devices are labeled. Optionally, in this or any other embodiment, the two or more different sizes, models or and/or shapes of penile constriction devices enable a user to select a device that functions best, is most comfortable, and most optimally corresponds with the size, shape, and biology of their penis. 
     Optionally, in this or any other embodiment, the number of bands is 1 to 500. Optionally, in this or any other embodiment, the bands comprises two or more different sizes, models or and/or shapes of bands. Optionally, in this or any other embodiment, the two or more different sizes, models or and/or shapes of bands are color coded. Optionally, in this or any other embodiment, two or more different sizes, models or and/or shapes of bands are labeled. Optionally, in this or any other embodiment, two or more different sizes, models or and/or shapes of bands enable a user to customize the compressive force imparted by the device onto the penis that is most optimal for with the size, shape, and biology of their penis. 
     Current Penile Construction Devices 
       FIG. 17  shows a front view of a penile constriction device in the prior art.  FIG. 18  shows a front cross-sectioned view of the prior art penile constriction device in  FIG. 17  on a human penis. To highlight, by contrast, the prior art Encore Tension Device, per  FIGS. 17 and 18 , is configured to apply both a uniform pressure and a non-selective pressure on the entire circumference of the penis, because its penile cavity  1700  is circular, continuous, elastic, and non-rigid. Further, the prior art Encore Tension Band is not configured to apply a non-uniform pressure or a selective non-uniform pressure on the circumference of the penis, because its penile cavity  2000  is circular, continuous, elastic, and non-rigid. As such, in contrast to the devices and systems of the current disclosure, the Encore Tension Band per  FIG. 18  is configured to apply a significant compressive force to the deep arteries  1830 , the dorsal arteries  1850 , the urethra  1870 , and the dorsal nerves  1860 , which prevents blood from flowing into the penis, prevents the use of Kegel exercises to maintain an erection, and causes injaculation and damages the dorsal nerves  1860 . 
     Further, because the prior art Encore Tension Band has a circular penile cavity  2000 , and as the cross sectional shape of the human penis is elliptical, the majority of the uniform pressure applied by the Encore Tension Band is directed towards the deep arteries  1830 , which bring blood into the penis to maintain an erection. 
     Additionally, because the prior art Encore Tension Band is fully elastic and configured to provide a uniform penile pressure, it is only effective when worn on an erect penis, and is ineffective when worn on a flaccid penis, a slightly flaccid penis, or a slightly rigid penis. As such, the prior art Encore Tension Band is incapable of facilitating erection initiation. 
       FIGS. 22-24  shows a non-limiting example of a penile constriction device  2200  having a manufacturing mark  2201 . In some embodiments, a size, orientation, location, depth, or any combination thereof of the manufacturing mark  2201  enables the production of the penile constriction device  2200  that provides sufficient force between its arms. 
     Terms and Definitions 
     Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. 
     As used herein, the singular forms “a,” “an,” and “the” include plural references unless the context clearly dictates otherwise. Any reference to “or” herein is intended to encompass “and/or” unless otherwise stated. 
     As used herein, the term “about” refers to an amount that is at the stated amount or near the stated amount by 25%, 20%, 15%, 10%, 5%, 2%, or 1%, including increments therein. When the amount is a percentage, the term “about” means a range around the given amount, e.g. about 10% refers to 10%+/−1% (i.e. 9%-11%), or 10%+/−2% (i.e. 8%-12%), etc. depending on the embodiment and amount. 
     As used herein, the term “mesial” refers to a longitudinal direction or relation towards the center. 
     As used herein, the term “transverse” refers to a longitudinal direction or relation away from the center. 
     As used herein, the term “apex” refers to a point of inflection in one or more directions. 
     As used herein, the term “normal” refers to perpendicularity in one or more directions. 
     As used herein, the term “curvilinear” refers to a shape comprising one or more curves. 
     As used herein, the term “girth” refers to a circumference of a portion of a male human penis. 
     As used herein, the term “circular diameter” refers to an outer width, e.g. a transverse width, of a portion of a male human penis. 
     EXAMPLES 
     The following illustrative examples are representative of embodiments of the applications, systems, and methods described herein and are not meant to be limiting in any way. Optionally, in other embodiments, each of the following examples can additionally include any of the aforementioned embodiments and elements. 
     Example 1: First Penile Constriction Device 
     Provided herein, per  FIG. 6 , is a first penile constriction device  600  comprising an arched rod having a constriction gap width  661 , a constriction height  680 , a maximum inner width  670 , an inferior height  690 , and a thickness  651 , as shown in Table 2 below. For the first penile constriction device  600 , the constriction gap width  661  is measured as a minimum distance between the first converging end and the second converging end within the constriction region. For the first penile constriction device  600 , the constriction height  680  is measured as a normal distance between a constriction point  662  and the inferior side of the bridge, wherein the constriction point  662  is defined as the midpoint of the constriction gap width  661 . For the first penile constriction device  600 , the maximum inner width  670  is measured as a maximum normal distance between a mesial vertex of the surface of the first arm and a mesial vertex of the surface of the second arm. For the first penile constriction device  600 , the inferior height  690  is measured as a normal distance between the center point  662  and the inferior side of the bridge. For the first penile constriction device  600 , the thickness  651  is measured as a maximum normal cross-sectional width of at least a portion of at least one of the first arm, the second arm, and the bridge. 
     
       
         
           
               
               
               
               
             
               
                   
                 TABLE 2 
               
               
                   
                   
               
               
                   
                 Dimension 
                 Min 
                 Max 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 Constriction Gap Width 
                 0.526 
                 0.594 
               
               
                   
                 Constriction Height 
                 0.975 
                 1.099 
               
               
                   
                 Maximum Inner Width 
                 1.170 
                 1.319 
               
               
                   
                 Inferior Height 
                 0.390 
                 0.440 
               
               
                   
                 Thickness 
                 0.2 
                 0.7 
               
               
                   
                   
               
            
           
         
       
     
     A cross-sectional area of a penis may be defined as the cross sectional area within the circumference of a flaccid or erect penis. Alternatively, the cross-sectional area is defined as the area of a circle having a diameter equal to the girth of a flaccid or erect penis. Alternatively, the cross-sectional area is defined as the area of a circle having a diameter equal to the circular diameter of a flaccid or erect penis. Exemplary cross sectional areas are shown in Tables 10 and 11. A cross-sectional constriction percentage is defined as a percentage by which the cross-sectional area of the flaccid or erect penis at the intersection of the device  600  and the flaccid or erect penis is reduced when the device  600  is worn on the flaccid or erect penis. Alternatively, the cross-sectional constriction percentage is defined as a percentage by which the cross-sectional area of the flaccid or erect penis at a point on the flaccid or erect penis is reduced when the device  600  is worn on the flaccid or erect penis. In some embodiments, the flaccid and erect cross-sectional constriction percentages represent a uniform cross-sectional constriction of the flaccid penis and the erect penis, respectively. In some embodiments, the flaccid and erect cross-sectional constriction percentages represent a non-uniform cross-sectional constriction of the flaccid penis and the erect penis, respectively. The cross-sectional constriction percentage imparted by the first penile constriction device  600  on a penis of general size A, per Table 1, is shown in Table 3 below. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 3 
               
               
                   
                   
               
               
                   
                 Flaccid 
                 Erect 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 Min 
                 20.00% 
                 10.36% 
               
               
                   
                 Max 
                 37.13% 
                 29.55% 
               
               
                   
                   
               
            
           
         
       
     
     In some cases, the minimum and maximum cross sectional constriction percentages per Table 3, represent the minimum and maximum cross sectional constrictions recommended for use of the first penile constriction device  600  on a flaccid penis or an erect penis, respectively. In some cases, the minimum and maximum cross sectional constriction percentages per Table 3, and the dimensions of the first penile constriction device  600  (Size S), per Table 3, indicate the recommended penis size dimensions, per Table 10 or 11 below. In some embodiments, the first penile constriction device  600  does not comprise the friction protrusions. In some embodiments, the first penile constriction device  600  does not comprise the first dorsal vein protrusion or the second dorsal vein protrusion. In some embodiments, the first penile constriction device  600  does not comprise the friction protrusions, the first dorsal vein protrusion, or second dorsal vein protrusion. 
     Example 2: Second Penile Constriction Device 
     Provided herein, per  FIG. 7 , is a second penile constriction device  700  comprising an arched rod having a constriction gap width  761 , a constriction height  780 , a maximum inner width  770 , an inferior height  790 , and a thickness  751 , as shown in Table 4 below. For the second penile constriction device  700 , the constriction gap width  761  is measured as a minimum distance between the first converging end and the second converging end within the constriction region. For the second penile constriction device  700 , the constriction height  780  is measured as a normal distance between a constriction point  762  and the inferior side of the bridge, wherein the constriction point  762  is defined as the midpoint of the constriction gap width  761 . For the second penile constriction device  700 , the maximum inner width  770  is measured as a maximum normal distance between a mesial vertex of the surface of the first arm and a mesial vertex of the surface of the second arm. For the second penile constriction device  700 , the inferior height  790  is measured as a normal distance between the center point  762  and the inferior side of the bridge. For the second penile constriction device  700 , the thickness  751  is measured as a maximum normal cross-sectional width of at least a portion of at least one of the first arm, the second arm, and the bridge. 
     
       
         
           
               
               
               
               
             
               
                   
                 TABLE 4 
               
               
                   
                   
               
               
                   
                 Dimension 
                 Min 
                 Max 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 Constriction Gap Width 
                 0.594 
                 0.650 
               
               
                   
                 Constriction Height 
                 1.099 
                 1.203 
               
               
                   
                 Maximum Inner Width 
                 1.319 
                 1.444 
               
               
                   
                 Inferior Height 
                 0.440 
                 0.481 
               
               
                   
                 Thickness 
                 0.2 
                 0.7 
               
               
                   
                   
               
            
           
         
       
     
     A cross-sectional area of a penis may be defined as the cross sectional area within the circumference of a flaccid or erect penis. Alternatively, the cross-sectional area is defined as the area of a circle having a diameter equal to the girth of a flaccid or erect penis. Alternatively, the cross-sectional area is defined as the area of a circle having a diameter equal to the circular diameter of a flaccid or erect penis. Exemplary cross sectional areas are shown in Tables 10 and 11. A cross-sectional constriction percentage is defined as a percentage by which the cross-sectional area of the flaccid or erect penis at the intersection of the device  600  and the flaccid or erect penis is reduced when the device  600  is worn on the flaccid or erect penis. Alternatively, the cross-sectional constriction percentage is defined as a percentage by which the cross-sectional area of the flaccid or erect penis at a point on the flaccid or erect penis is reduced when the device  600  is worn on the flaccid or erect penis. In some embodiments, the flaccid and erect cross-sectional constriction percentages represent a uniform cross-sectional constriction of the flaccid penis and the erect penis, respectively. In some embodiments, the flaccid and erect cross-sectional constriction percentages represent a non-uniform cross-sectional constriction of the flaccid penis and the erect penis, respectively. The cross-sectional constriction percentage imparted by the second penile constriction device  700  on a penis of general size B, per Table 1, is shown in Table 5 below. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 5 
               
               
                   
                   
               
               
                   
                 Flaccid 
                 Erect 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 Min 
                 20.00% 
                 10.36% 
               
               
                   
                 Max 
                 33.22% 
                 25.18% 
               
               
                   
                   
               
            
           
         
       
     
     In some cases, the minimum and maximum cross sectional constriction percentages per Table 5, represent the minimum and maximum cross sectional constrictions recommended for use of the second penile constriction device  700  on a flaccid penis or an erect penis, respectively. In some cases, the minimum and maximum cross sectional constriction percentages per Table 5, and the dimensions of the second penile constriction device  700  (Size M), per Table 5, indicate the recommended penis size dimensions, per Table 10 or 11 below. In some embodiments, the first penile constriction device  600  does not comprise the friction protrusions. In some embodiments, the first penile constriction device  600  does not comprise the first dorsal vein protrusion or the second dorsal vein protrusion. In some embodiments, the first penile constriction device  600  does not comprise the friction protrusions, the first dorsal vein protrusion, or second dorsal vein protrusion. 
     Example 3: Third Penile Constriction Device 
     Provided herein, per  FIG. 8 , is a third penile constriction device  800  comprising an arched rod having a constriction gap width  861 , a constriction height  880 , a maximum inner width  870 , an inferior height  890 , and a thickness  851 , as shown in Table 6 below. For the third penile constriction device  800 , the constriction gap width  861  is measured as a minimum distance between the first converging end and the second converging end within the constriction region. For the third penile constriction device  800 , the constriction height  880  is measured as a normal distance between a constriction point  862  and the inferior side of the bridge, wherein the constriction point  862  is defined as the midpoint of the constriction gap width  861 . For the third penile constriction device  800 , the maximum inner width  870  is measured as a maximum normal distance between a mesial vertex of the surface of the first arm and a mesial vertex of the surface of the second arm. For the third penile constriction device  800 , the inferior height  890  is measured as a normal distance between the center point  862  and the inferior side of the bridge. For the third penile constriction device  800 , the thickness  851  is measured as a maximum normal cross-sectional width of at least a portion of at least one of the first arm, the second arm, and the bridge. 
     
       
         
           
               
               
               
               
             
               
                   
                 TABLE 6 
               
               
                   
                   
               
               
                   
                 Dimension 
                 Min 
                 Max 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 Constriction Gap Width 
                 0.650 
                 0.705 
               
               
                   
                 Constriction Height 
                 1.203 
                 1.305 
               
               
                   
                 Maximum Inner Width 
                 1.444 
                 1.566 
               
               
                   
                 Inferior Height 
                 0.481 
                 0.522 
               
               
                   
                 Thickness 
                 0.2 
                 0.7 
               
               
                   
                   
               
            
           
         
       
     
     A cross-sectional area of a penis may be defined as the cross sectional area within the circumference of a flaccid or erect penis. Alternatively, the cross-sectional area is defined as the area of a circle having a diameter equal to the girth of a flaccid or erect penis. Alternatively, the cross-sectional area is defined as the area of a circle having a diameter equal to the circular diameter of a flaccid or erect penis. Exemplary cross sectional areas are shown in Tables 10 and 11. A cross-sectional constriction percentage is defined as a percentage by which the cross-sectional area of the flaccid or erect penis at the intersection of the device  600  and the flaccid or erect penis is reduced when the device  600  is worn on the flaccid or erect penis. Alternatively, the cross-sectional constriction percentage is defined as a percentage by which the cross-sectional area of the flaccid or erect penis at a point on the flaccid or erect penis is reduced when the device  600  is worn on the flaccid or erect penis. In some embodiments, the flaccid and erect cross-sectional constriction percentages represent a uniform cross-sectional constriction of the flaccid penis and the erect penis, respectively. In some embodiments, the flaccid and erect cross-sectional constriction percentages represent a non-uniform cross-sectional constriction of the flaccid penis and the erect penis, respectively. The cross-sectional constriction percentage imparted by the third penile constriction device  800  on a penis of general size C, per Table 1, is shown in Table 7 below. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 7 
               
               
                   
                   
               
               
                   
                 Flaccid 
                 Erect 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 Min 
                 20.00% 
                 10.36% 
               
               
                   
                 Max 
                 31.95% 
                 23.75% 
               
               
                   
                   
               
            
           
         
       
     
     In some cases, the minimum and maximum cross sectional constriction percentages per Table 7, represent the minimum and maximum cross sectional constrictions recommended for use of the third penile constriction device  800  on a flaccid penis or an erect penis, respectively. In some cases, the minimum and maximum cross sectional constriction percentages per Table 7, and the dimensions of the third penile constriction device  800  (Size L), per Table 7, indicate the recommended penis size dimensions, per Table 10 or 12 below. In some embodiments, the third penile constriction device  800  does not comprise the friction protrusions. In some embodiments, the third penile constriction device  800  does not comprise the first dorsal vein protrusion or the second dorsal vein protrusion. In some embodiments, the third penile constriction device  800  does not comprise the friction protrusions, the first dorsal vein protrusion, or second dorsal vein protrusion. 
     Example 4: Fourth Penile Constriction Device 
     Provided herein, per  FIG. 9 , is a fourth penile constriction device  900  comprising an arched rod having a constriction gap width  961 , a constriction height  980 , a maximum inner width  970 , an inferior height  990 , and a thickness  951 , as shown in Table 8 below. For the fourth penile constriction device  900 , the constriction gap width  961  is measured as a minimum distance between the first converging end and the second converging end within the constriction region. For the fourth penile constriction device  900 , the constriction height  980  is measured as a normal distance between a constriction point  962  and the inferior side of the bridge, wherein the constriction point  962  is defined as the midpoint of the constriction gap width  961 . For the fourth penile constriction device  900 , the maximum inner width  970  is measured as a maximum normal distance between a mesial vertex of the surface of the first arm and a mesial vertex of the surface of the second arm. For the fourth penile constriction device  900 , the inferior height  990  is measured as a normal distance between the center point  962  and the inferior side of the bridge. For the fourth penile constriction device  900 , the thickness  951  is measured as a maximum normal cross-sectional width of at least a portion of at least one of the first arm, the second arm, and the bridge. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 8 
               
               
                   
                   
               
               
                   
                 Dimension 
                 Min 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                   
                 Constriction Gap Width 
                 0.705 
               
               
                   
                 Constriction Height 
                 1.305 
               
               
                   
                 Maximum Inner Width 
                 1.566 
               
               
                   
                 Inferior Height 
                 0.522 
               
               
                   
                 Thickness 
                 0.2 
               
               
                   
                   
               
            
           
         
       
     
     A cross-sectional area of a penis may be defined as the cross sectional area within the circumference of a flaccid or erect penis. Alternatively, the cross-sectional area is defined as the area of a circle having a diameter equal to the girth of a flaccid or erect penis. Alternatively, the cross-sectional area is defined as the area of a circle having a diameter equal to the circular diameter of a flaccid or erect penis. Exemplary cross sectional areas are shown in Tables 10 and 11. A cross-sectional constriction percentage is defined as a percentage by which the cross-sectional area of the flaccid or erect penis at the intersection of the device  600  and the flaccid or erect penis is reduced when the device  600  is worn on the flaccid or erect penis. Alternatively, the cross-sectional constriction percentage is defined as a percentage by which the cross-sectional area of the flaccid or erect penis at a point on the flaccid or erect penis is reduced when the device  600  is worn on the flaccid or erect penis. In some embodiments, the flaccid and erect cross-sectional constriction percentages represent a uniform cross-sectional constriction of the flaccid penis and the erect penis, respectively. In some embodiments, the flaccid and erect cross-sectional constriction percentages represent a non-uniform cross-sectional constriction of the flaccid penis and the erect penis, respectively. The cross-sectional constriction percentage imparted by the fourth penile constriction device  900  on a penis of general size D, per Table 1, is shown in Table 9 below. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 9 
               
               
                   
                   
               
               
                   
                 Flaccid 
                 Erect 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 Min 
                 20.00% 
                 10.36% 
               
               
                   
                 Max 
                 40.27% 
                 30.08% 
               
               
                   
                   
               
            
           
         
       
     
     In some cases, the minimum and maximum cross sectional constriction percentages per Table 9, represent the minimum and maximum cross sectional constrictions recommended for use of the fourth penile constriction device  900  on a flaccid penis or an erect penis, respectively. In some cases, the minimum and maximum cross sectional constriction percentages per Table 9, and the dimensions of the fourth penile constriction device  900  (Size XL), per Table 8, indicate the recommended penis size dimensions, per Table 10 or 11 below. In some embodiments, the fourth penile constriction device  900  does not comprise the friction protrusions. In some embodiments, the fourth penile constriction device  900  does not comprise the first dorsal vein protrusion or the second dorsal vein protrusion. In some embodiments, the fourth penile constriction device  900  does not comprise the friction protrusions, the first dorsal vein protrusion, or second dorsal vein protrusion. 
     Although the exemplary, first, second, third, and fourth penile constriction devices  600   700   800   900  may be formed to different sizes, each exemplary device can include any of the elements in one or more of the embodiments herein. 
     Example 5: Chart for Constriction Device Sizing 
     As described in the examples above, the exemplary second, third, fourth, and fifth penile constriction devices  600 ,  700 ,  800 ,  900 , respectively, alternatively denoted das sizes S, M, L, and XL, respectively may be generally prescribed to alleviate erectile dysfunction in males with a general penis size of A, B, C, and D, respectively. However, if a greater cross-sectional constriction percentage than those listed in Tables 3, 5, 7, and 9 is required to alleviate a severe ED condition, the S, M, L, and XL, devices may be prescribed per Table 10 below. 
     
       
         
           
               
               
             
               
                   
                 TABLE 10 
               
             
            
               
                   
                   
               
               
                   
                 ED Device 
               
            
           
           
               
               
               
               
            
               
                 General 
                 Girth (cm) 
                 Circular Diameter (cm) 
                 ED Condition 
               
            
           
           
               
               
               
               
               
               
            
               
                 Penis Size 
                 Flaccid 
                 Erect 
                 Flaccid 
                 Erect 
                 Mild Severe 
               
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 A 
                 Min 
                 2.990 
                 3.750 
                 0.952 
                 1.194 
                 S 
                 S 
               
               
                   
                 Max 
                 3.373 
                 4.230 
                 1.074 
                 1.346 
               
               
                 B 
                 Min 
                 3.373 
                 4.230 
                 1.074 
                 1.346 
                 M 
                 S 
               
               
                   
                 Max 
                 3.692 
                 4.630 
                 1.175 
                 1.474 
               
               
                 C 
                 Min 
                 3.692 
                 4.630 
                 1.175 
                 1.474 
                 L 
                 M 
               
               
                   
                 Max 
                 4.003 
                 5.020 
                 1.274 
                 1.598 
               
               
                 D 
                 Min 
                 4.003 
                 5.020 
                 1.274 
                 1.598 
                 XL 
                 L 
               
               
                   
                 Max 
                 4.633 
                 5.810 
                 1.475 
                 1.849 
               
               
                   
               
            
           
         
       
     
     Further, Table 10 can be employed as a template for a user to select the correct exemplary constriction device based on their general penis size and the severity of their ED condition. 
     Example 6: First Example of Selecting an ED Device 
     Sam does not have ED, but wants to purchase an ED device to enhance his erection. However, Sam does not know which size ED device is appropriate for his situation. Sam reads the sizing recommendations per Table 10 above and sees that the table provides a range of penis sizes for different categories that correspond to different sizes. Measuring the girth of his erect penis, Sam learns that his erect penis falls within the range of a Min. and Max. for a general penis size “C”. Sam visits his local store and purchases a Size L device. When he goes home, he finds out that the Size L device is a perfect fit. Because of the table, Sam does not have to guess which device is appropriate for his situation. 
     Example 7: Second Example of Selecting an ED Device 
     Joe has been experiencing mild signs of erectile dysfunction and decides to buy an ED device. Joe measures the girth of his flaccid and erect penis as 3.5 inches and 4.5 inches, respectively, using a tape measure. Joe references the sizing recommendations chart, per Table 10 above, to determine that his general penis size is size “B” and that, as his ED symptoms are mild, he should purchase a Size M ED device. Joe purchases the Size M ED device, which comes with a tension band separately so the Size M ED device and tension bands are two separate pieces. Joe fits the Size M ED device along with the tension band, which alleviates his mild ED symptoms. 
     As Joe ages his mild ED symptoms exacerbate and become severe. Joe references the user manual to determine that, as his symptoms have worsened, the use of a Size S ED device is now recommended. Joe purchases the Size 1 ED devices, which comes with a tension band separately. Joe opts to fit the Size S ED device without the tension band and finds that the Size 1 ED device alleviates his severe ED symptoms. 
     Example 8: Third Example of Selecting an ED Device 
     Tom has been experiencing severe signs of erectile dysfunction and decides to buy an ED device. Tom measures the circular diameter of his flaccid and erect penis as 1.2 inches and 1.5 inches, respectively, using a ruler. Tom references the sizing recommendations chart, per Table 10 above, to determine that his general penis size is size “C” and that, as his ED symptoms are severe, he should purchase a Size M ED device. Tom purchases the Size M ED device, which comes with a tension band attached so the Size M ED device and tension band is one piece. The Size M ED device fits Tom well and alleviates his severe ED symptoms. 
     Example 9: Band Dimensions 
     Optionally, in this or any other embodiment, the dimensions of the primary band, per  FIG. 50B , vary based on a tension level provided the primary band  1500 . Optionally, in this or any other embodiment, the primary band  1500  comprises a high tension primary band  1500 A. Optionally, in this or any other embodiment, the primary band  1500  comprises a low tension primary band  1500 B. The dimensions (in inches) of the depth  1501 , the width  1502 , the outer diameter  1503 , the tab thickness  1504 , and the hoop thickness  1505  for the high tension band  1500 A (having sizes 1 and 2) and for the low tension band  1500 B (having sizes 1-4) are shown in table 11 below. 
     
       
         
           
               
               
               
               
               
               
               
               
             
               
                 TABLE 11 
               
               
                   
               
               
                 Tension 
                 Size 
                 For Device Size 
                 1501 
                 1502 
                 1503 
                 1504 
                 1505 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 High 
                 1 
                 S/M 
                 0.2-0.3 
                 0.8-0.9 
                 0.3-0.4 
                 0.06-0.07 
                 0.06-0.07 
               
               
                   
                 2 
                 L/XL 
                 0.2-0.3 
                 0.85-0.95 
                 0.4-0.5 
                 0.06-0.07 
                 0.06-0.07 
               
               
                 Low 
                 1 
                 S 
                 0.2-0.3 
                 1.0-1.2 
                 0.5-0.7 
                 0.06-0.07 
                 0.06-0.07 
               
               
                   
                 2 
                 M 
                 0.2-0.3 
                 1.0-1.2 
                 0.6-0.8 
                 0.06-0.07 
                 0.06-0.07 
               
               
                   
                 3 
                 L 
                 0.2-0.3 
                 1.0-1.2 
                 0.6-0.8 
                 0.06-0.07 
                 0.06-0.07 
               
               
                   
                 4 
                 XL 
                 0.2-0.3 
                 1.0-1.3 
                 0.6-0.8 
                 0.06-0.07 
                 0.06-0.07 
               
               
                   
               
            
           
         
       
     
     Optionally, in this or any other embodiment, as the dimensions of the high tension band  1500 A are smaller than the dimensions of the low tension band  1500 B, the high tension band  1500 A imparts a greater force when applied on the devices herein. Optionally, in this or any other embodiment, the high tension band  1500 A high tension band  1500 A high tension band  1500 A and the low tension band  1500 B are formed of the same material. Optionally, in this or any other embodiment, the high tension band  1500 A and the low tension band  1500 B are formed of different materials. Optionally, in this or any other embodiment, the high tension band  1500 A are formed of a material having a higher modulus of elasticity than the material of the low tension band  1500 B. 
     Example 10: Choosing a Low Tension Band 
     After measuring his flaccid and erect penis, Paul determines that his general penis size is size “D” and that, as his ED symptoms are mild, he should purchase a Size XL ED device. However, during intercourse, the size XL ED device rotates and translates from its initial position on his penis such that the efficacy of the XL ED device is diminished. Paul then pinches each tab of a high tension band that arrived with his XL ED device, and applies tension on the band while inserting the elbows of his XL ED band into the hoop of the band. Wearing his XL ED device with the high tension band placed thereon Paul finds that the device maintains its position and orientation during intercourse, but is uncomfortably tight. As such, Paul pinches the tabs of the high tension band and applies tension to the high tension band to remove the high tension band from his XL ED device. Paul then replaces the high tension band with a low tension band in the same way he attached the high tension band to his XL ED device. Now during intercourse, his XL ED device is comfortable and maintains its position and efficacy. 
     Example 11: Choosing a High Tension Band 
     After measuring his flaccid and erect penis, Gary determines that his general penis size is size “D” and that, as his ED symptoms are severe, he should purchase a Size L ED device. However, during intercourse, his size L ED device rotates and translates from its initial position on his penis such that the efficacy of his size L ED device is diminished. Gary then pinches each tab of a low tension band that arrived with his size L ED device, and applies tension on the band while inserting the elbows of his size LED band into the hoop of the band. Wearing his size L ED device with the low tension band placed thereon Gary experiences an improved efficacy but notices that his size L ED device rotates and translates slightly from its initial position on his penis. As such, Gary pinches the tabs of the low tension band and applies tension to the low tension band to remove the low tension band from his size L ED device. Gary then replaces the low tension band with a high tension band in the same way he attached the low tension band to his size L ED device. Now during intercourse, his size L ED device is maintaining its position and provides its full efficacy.