Abstract:
A male masturbation device and method for using same facilitates orgasm without the necessity of the subject achieving an erection. The novel device comprises a housing ( 14 ) and accumulator means ( 12 ). The accumulator means maintains a consistent modest vacuum within the housing notwithstanding sliding of the penis within the housing. The accumulator means can be integrated with the housing or detached from but in fluid communication with the housing. The device may be used with or without a partner and its use may be augmented by sensory stimulation contrivances. The novel device and method offers the health and recreational benefits of orgasm, and facilitates semen collection, for individuals suffering ED, without resort to drugs or vacuum erection devices. The novel device takes advantage of the fact that an erection is not required for orgasm, however, users may experience an erection prior to ejaculation.

Description:
CROSS-REFERENCE 
       [0001]    This patent application is a continuation and claims the benefit of Patent Cooperation Treaty International Application No. PCT/US2011/050892 filed 8 Sep. 2011, which application is incorporated in its entirety by this reference. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    1. Technical Field 
         [0003]    This invention comprises a device and method for facilitating male orgasm. More specifically, this invention comprises a device that males, and couples, can use to facilitate male masturbation and orgasm without the necessity of first achieving an erection, and a method of using the same. 
         [0004]    2. Background Art 
         [0005]    To facilitate understanding of this invention, two points must be emphasized at the outset. Firstly, this invention is not a VED (vacuum erection device), whose function, result, and operating pressures are substantially at odds with the present invention. VEDs subject the penis to a substantial vacuum in the range of 26-31 cm Hg for a period of time during which the penis becomes engorged with blood while the user may experience mild discomfort. While a VED is under a 26-31 cm Hg vacuum, partial withdrawal of the penis, or sliding the device, is impeded because, in accordance with Boyle&#39;s Law, partial withdrawal of the penis would significantly increase the vacuum pressure, beyond a safe level, causing risk of pain and injury to the penis. Use of a VED generally does not provide a pleasant sensation which might facilitate an orgasm. The relatively constant modest vacuum of about 5 cm Hg which is maintained by the present invention is insufficient to produce an erection, but instead facilitates masturbation and orgasm with a flaccid penis. 
         [0006]    VEDs of various designs are widely known, and a number have been patented. VEDs are currently marketed in the United States in a price range from $10 to $550, the $550 VED being recognized by the U.S. Food and Drug Administration for inclusion in the government Medicare program as an approved device to treat erectile dysfunction (ED), while the $10 VED provides the same result, in the same way, in the same amount of time. VEDs are highly effective at producing an erect penis, which the subject may then proceed to use as he will. VEDs are not intended to produce an orgasm. 
         [0007]    The second point to be understood is that an erection is not required for male orgasm, a fact which has been known in certain academic circles since the 1960s, but the myth persists that an erection must precede orgasm. June M. Reinisch, Ph.D., has recorded a 15-minute video clip in which she explains the physiology of male orgasm and why an erection is not a necessary part of the orgasm process. Dr. Reinisch&#39;s video, and a transcription of the audio portion thereof, may be accessed at 
         [0000]    http://loveandhealth.worldgroups.com/Article.cfm?Article=157&amp;SubTopic=18&amp;Topic=2 
         [0008]    Excerpts from the transcript of the audio portion of Dr. Reinisch&#39;s presentation are reproduced below. 
       Myth: Erections are Necessary for Orgasm 
     June M. Reinisch, Ph.D. 
       [0009]    The myth that we&#39;re going to bust this month is one that you probably don&#39;t even know you have, but I think it has probably affected, or will affect, if it hasn&#39;t, your sex life sometime in your life—and not just you men who are listening to this but your partners&#39; lives. And I think it&#39;s an important one that we address, so we&#39;re going to address it this month. The myth is that a man must have an erection in order to have an orgasm and an ejaculation. But the orgasm part I think is the most important because that&#39;s the pleasure part. And it&#39;s a myth that not just men have out there who are ordinary guys, but it&#39;s a myth that physicians actually carry around with them, and a lot of scientists don&#39;t know about. We sexologists, of course, know it&#39;s not true . . . . 
         [0010]    The fact is that men can have orgasms even if they have no erections whatsoever. An erection is not necessary for orgasm or, in fact, ejaculation, because they&#39;re all separate events. They just happen to happen together, but they&#39;re not inseparable—they&#39;re not the same thing. Very simply put, this means that even if a man cannot produce any erection at all or can only attain or maintain a partial erection, with appropriate manual or oral stimulation he can experience a complete and fully satisfying orgasm and an ejaculation . . . . 
         [0011]    Now the revelation of the independence of arousal and erection from ejaculation and orgasm provided what might be considered the most important insight leading to the development of modern sex therapy. The independent nature of these phases of sexual response should have made front page news. Here&#39;s the headlines that I see we could have had. We should have had headlines like—of course in America we wouldn&#39;t have them, knowing how uptight we are and how puritan we are—but I can see headlines like “Orgasm Freed from Servitude of Erection,” or how about “Men&#39;s Pleasure Liberated from the Demands of Erection” but as you know, we didn&#39;t get any of that. In fact, hardly any physicians even found out about it. Because four decades later, after the original medical report, most people, and that includes physicians, are still unaware that with appropriate stimulation of the man&#39;s penis, he can experience a full orgasm even when he has little or no erection . . . . 
         [0012]    Now the anatomical basis for the independence of erection, ejaculation, and orgasm has been known and understood in some quarters long before it was applied to clinical practice . . . . 
         [0013]    The first part of these orgasm phase events is called emission. That&#39;s when semen is collected from the testes and other internal organs . . . . 
         [0014]    The second event is ejaculation. And that occurs almost immediately after emission and involves strong spasmodic muscle contractions which propel the semen through the urethra and out the end of the penis, in spurts. Then the third part, of course, is orgasm, that accompanies the ejaculation . . . . 
         [0015]    So—I guess the moral of this myth-busting session is that if you find yourself in a situation when an erection is not forthcoming because maybe you&#39;ve drunk a little bit too much or you&#39;re sick or there&#39;s something else going on, or you&#39;re taking a medication that at this point in your life is interfering with your erections, now you know not to give up. Don&#39;t give up the ship! This is a time to say to your partner, or even to yourself if you&#39;re masturbating, that the pleasure is still there and that if you keep at it and you do the things that make you feel good, then you will have an orgasm, and of course there are other ways to satisfy your partner. So keep at it, and know that your body wants to give you pleasure and that an erection is not necessary in order to have pleasure. 
         [0016]    According to the Cleveland Clinic, 
         [0000]    http://www.clevelandclinicmeded.com/medicalpubs/diseasemanagement/endocrinology/erectile-dysfunction/#cesec7, ED affects 52% of males over age 40, and the prevalence and severity of ED at all ages is increasing, as a side effect of growing health problems, notably obesity and diabetes. 
         [0017]    The initial primary beneficiaries of this invention will necessarily be adult males in the so-called “more developed countries”, simply because they can afford it, and are likely to become aware of it. From now through 2050, according to U.N. projections, the total population of the more developed countries will remain flat (at 1.25 billion), but is rapidly aging. Today, 62% of the 480 million adult males in the more developed countries are over age 40, and those over age 40 will increase to 68% by 2050. Aging is a primary factor in the onset of ED. See the 2008 World Population Data Sheet by the Population Reference Bureau, available at http://www.scribd.com/doc/6502276/2008-World-Population-Presentation. 
         [0018]    There exists a variety of pharmaceuticals and apparatus designed to facilitate an erection among those experiencing ED. Pharmaceuticals used to facilitate erections among males have significant side effects and are contraindicated for individuals with certain medical conditions. The apparatus that facilitates male erections can be expensive, cumbersome, difficult to use and may be painful or irritating to the user. 
         [0019]    Among the apparatus most commonly employed to facilitate erection in men experiencing ED are vacuum erection devices. VEDs function by employing a vacuum to draw blood into the penis, engorging the tumescent tissues of the penis and facilitating an erection. Numerous prior art patents and published literature describe a wide variety of VED erection aids and a variety is available commercially. The purpose and function of all VEDs is assisting the male organ to achieve an erection. 
         [0020]    VEDs require a minimum vacuum of approximately 28 cm Hg to promote an erection in a male experiencing ED. A vacuum of this magnitude makes sliding of the VED along the shaft of the penis impossible. Any attempt to slide a penis being held within a VED under a vacuum of 28 cm Hg or more would be painful and would cause injury to the male organ. For the same reason, it is necessary to release the vacuum in the VED in order to safely and painlessly withdraw the penis from a VED. These characteristics make VEDs unsuitable for masturbation and facilitating orgasm. 
         [0021]    Accordingly, there would appear to be a need for a device and method to facilitate masturbation and orgasm in males experiencing ED, without the need to first create an erection by employing pharmaceuticals or awkward and uncomfortable mechanical devices. 
         [0022]    An erection is not a prerequisite to male masturbation and orgasm. Yet available manual masturbation aids and sex toys do not function to facilitate male masturbation and orgasm with a flaccid penis. There would appear to be the need for a device that facilitates manual masturbation, orgasm and ejaculation in the absence of an erection. 
         [0023]    Individuals with more severe cases of ED, and those of advanced age, typically require a higher level of stimulation in order to achieve orgasm. Prostate massage is one method which can be helpful in promoting orgasm in these individuals and a number of prostate massage devices are available commercially. These devices typically are made of rubber or silicone and may include a vibrator. One end of the device is inserted anally to contact the prostate while an external portion contacts the perineum. Because currently available manual masturbation devices do not work with a flaccid penis, there is a need for a device that can be used in conjunction with prostate massage devices to facilitate masturbation and orgasm in individuals with advanced ED who are not able to, or are unlikely to, achieve an erection without resorting to VEDs or pharmaceutical agents. 
       BRIEF SUMMARY OF INVENTION 
       [0024]    These and other objects are obtained in the novel device of the subject invention, a male masturbation device that facilitates masturbation, orgasm and ejaculation without the necessity of the subject achieving an erection, and a novel method for using this device. The novel device and method offers the health and recreational benefits of masturbation and orgasm, and facilitates semen collection following ejaculation, for individuals suffering ED, without the individual having to resort to drugs, or mechanical erection-facilitating devices. 
         [0025]    The novel device of the subject invention comprises a housing and an accumulator means. The accumulator means is either integrated with the housing of the masturbation device or is detached and in fluid communication with the housing. 
         [0026]    The housing of the masturbation device may further comprise a resilient masturbation sleeve to receive the penis, a variable aperture at the proximal end of the housing capable of forming a hermetic seal around a lubricated penis and maintaining the seal during use of the device, a rigid or, in some embodiments depressible, enclosure that withstands a vacuum pressure of at least 11 cm Hg and, in some embodiments, a check valve which allows compressed air within the housing of the device to escape. 
         [0027]    According to one embodiment, a remote accumulator means maintains a modest vacuum, preferably within the range of 4 to 7 cm Hg, within the masturbation device housing. This modest vacuum is used to draw the penis into the masturbation device and also to maintain the penis within the masturbation device when the device is manipulated to stimulate the penis and promote orgasm. 
         [0028]    According to alternative embodiments of the masturbation device of the present invention, the device housing is formed with a flexible surface or surface portion which, together with other aspects of the device housing, serves as an integrated accumulator means. When the flexible surface of the device housing is depressed and released, a partial vacuum is created, once again preferably within the range of 4 to 7 cm Hg, serving to draw the penis into the device and to maintain the penis within the device during use. The integrated accumulator means of other preferred embodiments employ an inflatable element. 
         [0029]    The method of the subject invention involves placing the glans of a lubricated penis into the opening of the device housing, followed by using either the remote or integrated accumulator means to draw the penis into the device, and then manipulating the penis by drawing the device housing back and forth along the shaft of the penis, or otherwise moving the penis relative to the device housing, partially withdrawing and reinserting the penis within the housing, to stimulate the penis and facilitate orgasm and ejaculation. 
         [0030]    The accumulator means serves to maintain a modest vacuum within the device housing at the preferred range of 4 to 7 cm Hg during sliding of the penis. This vacuum is by itself insufficient to promote an erection in the typical male suffering ED. However, the user may experience a partial or full erection for other reasons as, for example, tactile and other stimulation. 
         [0031]    The variable aperture serves to maintain a hermetic seal around the penis during manipulation and sliding, and also can accommodate tumescence of the penis should stimulation cause the penis to become partially or fully erect. 
         [0032]    The housing can take on a variety of forms and shapes and may be constructed from a variety of materials, many of which are known in the sex-device industry. The housing may be formed to simulate a human orifice, for example, making the device more attractive and erotic to the user. 
         [0033]    The device housing may be adapted to be held stationary by, for example, pillows, furniture, or other mount of some type, while the user moves his body back and forth relative to the restrained device housing in order to insert and withdraw the penis within the housing. 
         [0034]    The masturbation device of the present invention includes embodiments allowing its use with a sexual partner. Some embodiments of the housing may be held between a partner&#39;s legs, possibly contacting a partner&#39;s clitoris, and may further include housings designed to be inserted into a partner&#39;s bodily orifice, and may incorporate appendages, as for example a bullet vibrator, to contact and stimulate a partner&#39;s clitoris, and may further incorporate a harness or other means to secure it in place. Such insertable embodiments lend themselves to be connected by tubing to a remote accumulator means. Alternatively, a bulb appendage so placed as to be squeezed between the partners&#39; pubic bones (and clitoris) can function to charge, and re-charge, the device&#39;s integral accumulator as needed. Such bulb appendage may alternatively be disposed at the end of a length of flexible tubing, to be operated by either of the partners. 
         [0035]    A further preferred embodiment of the subject invention combines a masturbation device, suitable for use with a flaccid penis, and a prostate massage apparatus. 
         [0036]    The device of the present invention facilitates masturbation and orgasm in males irrespective of whether the male achieves a partial or complete erection. It is simple in its construction and can be fabricated cheaply from a variety of known and available components, rendering it easily accessible to individuals who experience ED and who wish to avoid the expense, delay, and side effects of mechanical or pharmaceutical erection aids. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0037]      FIG. 1  is a schematic drawing illustrating a male masturbation device  10  of the subject invention with accumulator means integrally disposed at its distal end allowing use with a flaccid penis. 
           [0038]      FIG. 2  is a schematic drawing of an alternative embodiment  10 ′ of the male masturbation device of the subject invention with a remote accumulator means in fluid communication therewith allowing use with a flaccid penis. 
           [0039]      FIG. 3  schematically illustrates a longitudinal cross-section side view of a typical construction of the male masturbation device  10 ′ of  FIG. 2 . 
           [0040]      FIG. 4  is a perspective view of a component of a variable aperture means employed at the proximal end of the male masturbation device, the assembled placement of which is shown in  FIG. 3 . 
           [0041]      FIG. 5  is an isometric view of the resilient masturbation sleeve employed in the masturbation device as shown in  FIGS. 3 ,  7 ,  10 ,  15 ,  16  and  17 . 
           [0042]      FIG. 6  schematically illustrates a masturbation device  10 A with squeezable enclosure and check valve that functions in the manner of an integrated accumulator means. 
           [0043]      FIG. 6A  is a cross-sectional view taken at Line B-B of  FIG. 6 . 
           [0044]      FIG. 6B  schematically illustrates a further preferred embodiment  10 A′ of the masturbation device of the present invention which is adapted to be inserted into a bodily orifice of a partner. 
           [0045]      FIG. 7  schematically illustrates a longitudinal cross-sectional side view illustrating a further alternative masturbation device  10 B wherein a flexible membrane disposed at the distal end of the housing together with a check valve functions in the manner of an integrated accumulator means. 
           [0046]      FIG. 8  is depicts a rigid enclosure of a further embodiment  10 C of the masturbation device of the subject invention with an elliptical cutout disposed in the wall thereof. 
           [0047]      FIG. 9  illustrates a depressible tubular gripper encircling the rigid enclosure of device  10 C shown in  FIG. 8 . 
           [0048]      FIG. 10  schematically illustrates a cross-sectional side view, taken along line A-A of  FIG. 9 , illustrating the preferred embodiment masturbation device  10 C of  FIGS. 8 &amp; 9 , ready for use (with a flaccid penis) comprising an integrated accumulator means, variable aperture, resilient masturbation sleeve, and enclosure, showing the depressible tubular gripper having been manually depressed into the elliptical cutout in the enclosure (the user&#39;s hand or thumbs not shown, for clarity). 
           [0049]      FIG. 11  and  FIG. 12  each illustrate alternate commercially available resilient masturbation sleeves which may be substituted for the tubular gripper depicted in  FIGS. 9 and 10 . 
           [0050]      FIG. 13  is a schematic drawing of masturbation device embodiment  10 D showing details of the integrated accumulator means employed in this embodiment. 
           [0051]      FIG. 14  is a schematic drawing of a prostate massage apparatus mechanically connected to and interacting in a reciprocal manner with the integrated accumulator means of device  10 D. 
           [0052]      FIG. 15  is a schematic longitudinal cross-section taken along line C-C of  FIG. 13  showing the housing and internal components of the masturbation device  10 D. 
           [0053]      FIG. 16  schematically illustrates masturbation device embodiment  10 E showing details of the integrated accumulator means employed in this embodiment. 
           [0054]      FIG. 16A  is a cross-sectional view taken along line A-A of  FIG. 16 . 
           [0055]      FIG. 17  schematically illustrates masturbation device embodiment  10 E′ comprising modifications to device  10 E such that a portion of the device may be inserted into a bodily orifice of a partner. 
           [0056]      FIG. 17A  is a cross-sectional view taken along line A-A of  FIG. 17 . 
       
    
    
     PARTS LIST 
       [0000]    
       
           10  schematic masturbation device (with integral accumulator— FIG. 1 ) 
           10 ′ schematic masturbation device (with remote accumulator— FIG. 2 ) 
           10 A first alternative device embodiment (with squeezable enclosure— FIGS. 6 ,  6 A) 
           10 A′ second alternative device embodiment ( 10 A adapted for insertion— FIG. 6B ) 
           10 B third alternative device embodiment (with membrane accumulator— FIG. 7 ) 
           10 C fourth alternative device embodiment (with fantasy sleeve— FIGS. 8 ,  9 ,  10 ) 
           10 D fifth alternative device embodiment (with prostate massage— FIGS. 13 ,  14 ,  15 ) 
           10 E sixth alternative device embodiment (with balloon accumulator— FIGS. 16 ,  16 A) 
           10 E′ seventh alternative device embodiment ( 10 E adapted for insertion— FIGS. 17 ,  17 A) 
           12  schematic integrated accumulator means ( FIG. 1 ) 
           12 ′ schematic remote accumulator means ( FIG. 2 ) 
           14  housing (a device minus accumulator— FIGS. 1 ,  2 ,  3 ) 
           16  flexible tube ( FIGS. 2 ,  6 B,  7 ,  17 ) 
           18  nipple ( FIGS. 2 ,  3 ,  7 ) 
           20  enclosure (rigid enclosure— FIG. 3 ) 
           20 ′ first alternative enclosure (depressible enclosure— FIGS. 6 ,  6 B) 
           20 ″ second alternative enclosure ( FIG. 7 ) 
           20 ′″ third alternative enclosure ( FIGS. 8 ,  9 ,  10 ) 
           22  resilient masturbation sleeve ( FIGS. 3 ,  5 ,  7 ,  10 ,  15 ,  16 ,  17 ) 
           24  variable aperture component ( FIGS. 3 ,  4 ,  7 ,  10 ,  15 ,  16 ,  17 ) 
           26  central opening ( FIGS. 1 ,  2 ,  3 ,  6 ,  6 B,  7 ,  8 ,  9 ,  10 ,  15 ,  16 ,  17 ) 
           28  check valve ( FIGS. 6 ,  6 B,  7 ,  8 ,  9 ,  10 ,  16 ,  17 ) 
           30  squeezable enclosure native state ( FIGS. 6 ,  6 A,  6 B) 
           32  squeezable enclosure depressed state ( FIGS. 6 ,  6 A,  6 B) 
           34  flexible membrane native state ( FIG. 7 ) 
           34 ′ flexible membrane depressed state ( FIG. 7 ) 
           36  enclosure cutaway section ( FIG. 8 ) 
           38  depressible tubular gripper ( FIGS. 9 ,  10 ) 
           40  enclosure gripper native state ( FIG. 10 ) 
           40 ′ enclosure gripper depressed state ( FIG. 10 ) 
           42   a  elastic masturbation sleeve ( FIG. 11 ) 
           42   b  alternative elastic masturbation sleeve ( FIG. 12 ) 
           44  piston ( FIG. 15 ) 
           46  piston rod ( FIGS. 13 ,  14 ,  15 ) 
           48  ball-joint connection pivot ( FIGS. 13 ,  14 ) 
           50  optional handle ( FIG. 13 ) 
           52  adjustable-length extension rod ( FIG. 13 ) 
           54  stationary mount ( FIG. 13 ) 
           56  prostate massage apparatus ( FIG. 14 ) 
           58  prostate massage extension rod ( FIG. 14 ) 
           60  glans ( FIG. 14 ) 
           62  inflatable element native state ( FIGS. 16 ,  17 ) 
           64  inflatable element inflated state ( FIGS. 16 ,  17 ) 
           66  resilient inflation tube ( FIGS. 16 ,  17 ) 
           68  tapered breather tube ( FIGS. 16 ,  17 ) 
           70  internal rib ( FIGS. 16 ,  16 A,  17 ,  17 A) 
           72  air path ( FIGS. 16A ,  17 A) 
           74  vacuum source ( FIG. 6B ) 
           76  breather nozzle ( FIG. 17 ) 
       
     
       DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0106]    The detailed description set forth below in connection with the appended drawings is intended as a description of presently-preferred embodiments of the invention and is not intended to represent the only forms in which the present invention may be constructed or utilized. The description sets forth the functions and the sequence of steps for using the invention in connection with the illustrated embodiments. However, it is to be understood that the same or equivalent functions and sequences may be accomplished by different embodiments that are also intended to be encompassed within the spirit and scope of the invention. 
         [0107]    Schematically depicted in  FIG. 1  is a first embodiment  10  of the masturbation device of the subject invention with an integrated accumulator means  12 . Accumulator means  12  is disposed in direct fluid communication with masturbation device housing  14 . A central opening  26  is formed within the proximal end of housing  14 . 
         [0108]    Accumulator means  12  is broadly defined as a system for maintaining a quantity of gas (air) within an enclosure at a relatively constant pressure that is less than the ambient atmospheric pressure, by changing the effective interior volume of said enclosure as a penis is repetitively inserted into and partially withdrawn from said enclosure. Accumulator means  12  can take on many configurations and forms and would be expected to employ conventional components, such as bellows, springs, pistons, siphon, cylinders, balloons, squeezable bulbs, inflatable elements, squeezable cylinders, valves, check valves, or diaphragms. Depending upon the particular embodiment, accumulators employed with the present invention are charged (initial pressure established) either prior to use of the device (pre-charged), or are charged simultaneously with initial insertion of a flaccid penis. 
         [0109]      FIG. 2  schematically illustrates an alternative embodiment  10 ′ of the masturbation device of the present invention with an accumulator means  12 ′ detached from housing  14 , but in fluid communication with housing  14  through a flexible tube  16 . Flexible tube  16  connects to remote accumulator means  12 ′ and housing  14  through nipples  18 . Although two nipples  18  are shown projecting from housing  14  in  FIG. 2 , this is shown to indicate alternative positions for locating nipple  18 , only one nipple  18  being necessary for any given device  10 ′. Nipple  18  can be located at other places on housing  14 . Remote accumulator means  12 ′ allows significant changes in the volume of air within a device (such as occurs when a penis enters masturbation device housing  14  of the present invention) while minimizing pressure changes of the air. 
         [0110]      FIG. 3  schematically illustrates a typical construction of housing  14  of masturbation device  10 ′, schematically shown in  FIG. 2 , in longitudinal cross-section. Housing  14  is comprised of a rigid enclosure  20  having an open end and a closed end, a resilient masturbation sleeve  22 , and a variable aperture component  24 . Enclosure  20  may be fabricated from thin-walled material, such as plastic, capable of withstanding a pressure differential of at least 11 cm Hg. 
         [0111]      FIG. 3  also depicts one type of housing  14  that may be employed in mountable or insertable versions of the present invention which may be used with a partner. Nipple  18  disposed in the wall of enclosure  20  may be connected by tubing to a remote accumulator means as depicted in  FIG. 2 . 
         [0112]    Resilient masturbation sleeve  22 , shown in  FIG. 3  and shown by itself in  FIG. 5 , is made of a flexible, resilient material having a soft inner surface suitable for being in rubbing contact with the soft tissues of the dermis of the penis. 
         [0113]    Referring again to  FIG. 3 , variable aperture component  24  is installed at the open, proximal end of enclosure  20 . Resilient masturbation sleeve  22  is inserted through variable aperture component  24  and into the open, proximal end of enclosure  20 . The proximal end of sleeve  22  is then folded back over the proximal end of enclosure  20 , thereby pneumatically sealing sleeve  22  to enclosure  20  while at the same time securing variable aperture component  24  in position and creating a central opening  26 . 
         [0114]    According to the construction of device housing  14  shown in  FIG. 3 , the outside diameter of variable aperture component  24 , a preferred embodiment of which is shown in  FIG. 4 , is slightly larger than the outside diameter of the proximal end of enclosure  20 . The elasticity of masturbation sleeve  22 , when folded back on itself over the proximal end of enclosure  20 , exerts an inward radial force on the outer circumferential edge of variable aperture component  24  thereby tending to reduce the outside diameter of variable aperture component  24  to approximately match the outside diameter of the proximal end of enclosure  20 , as well as reducing the inside diameter of resilient masturbation sleeve  22  such that it will create an airtight seal around a lubricated flaccid penis during stroking motion, and will allow the penis to increase in diameter during use without creating undue friction. 
         [0115]    Referring to  FIG. 4 , the variable aperture component  24  depicted may be die cut from a flat sheet of flexible plastic. The plurality of partial radial cuts as shown causes the ends to overlap at the single through cut, said partial radial cuts causing the outside circumference of variable aperture component  24  to lengthen relative to the inside circumference of variable aperture component  24 , resulting in the overlap, whereby inward radial force applied at the outer circumferential edge of variable aperture component  24  increases the overlap and reduces the interior diameter of said variable aperture component  24  correspondingly. 
         [0116]    Variable aperture component  24  can be made available with different-sized inside diameters to accommodate users having larger or smaller diameter penises, although it is intended that for any particular user, a single variable aperture component  24  will have sufficient elasticity of diameter to provide a hermetic seal for a given penis in both its flaccid and erect state. Similarly, a single variable aperture component  24  would be expected to accommodate penises of more than one size, though perhaps not all sizes. 
         [0117]    Referring to  FIG. 5 , resilient masturbation sleeve  22  may be constructed of simple inexpensive tube as shown, which may include a textured interior surface to increase the pleasant sensation resulting from it being slid along the shaft of the male organ, or can have a proximal end preformed to depict a bodily orifice, or to facilitate insertion of a penis. 
         [0118]    In an alternative embodiment, not shown, sleeve  22  may additionally include at its proximal end a preformed opening of such design and consistency as to obviate the need for variable aperture component  24 . In this case a fixed-diameter aperture, provided in interchangeable sizes, performs adequately. 
         [0119]    Schematically illustrated in  FIG. 6 , and in cross section (taken along line B-B of  FIG. 6 ) in  FIG. 6A , is a preferred embodiment masturbation device  10 A employing a depressible enclosure  20 ′. Depressible enclosure  20 ′, in conjunction with a check valve  28  installed at a convenient location on enclosure  20 ′, forms an integrated accumulator means that facilitates the full insertion and sliding of a flaccid penis within device  10 A. 
         [0120]    In its native state  30 , depressible enclosure  20 ′ is tubular having an approximately circular circumference. As shown best in  FIG. 6A , the wall of enclosure  20 ′ may be depressed, manually, locally elastically deforming the circular wall of enclosure  20 ′ into an elliptical depressed state  32  whereby the volume of air within enclosure  20 ′ is reduced, causing air to be initially expelled through central opening  26 . With enclosure  20 ′ so deformed, if central opening  26  of device  10 A is then closed off by a lubricated glans penis, releasing the deforming force on enclosure  20 ′ causes the volume of air within enclosure  20 ′ to attempt to increase to its initial volume, creating a modest vacuum and drawing the lubricated (possibly flaccid) penis into central opening  26  while allowing enclosure  20 ′ to elastically resume its native state  30 . Subsequent squeezes of enclosure  20 ′, while manually preventing device  10 A from sliding off the partially inserted penis, will expel additional air through check valve  28 , causing further insertion of the penis upon release of the enclosure-deforming force, until the penis is fully inserted within device  10 A. 
         [0121]    Enclosure  20 ′ is designed and manufactured to maintain a predetermined shape and to have a predetermined rigidity, and to be of such volume that, upon the partial withdrawal of a certain volume of a penis from enclosure  20 ′, as for example 100 cc of volume, enclosure  20 ′ partially collapses and decreases its volume by a lesser amount, as for example 36 cc, resulting in a net increase of air volume and a corresponding decrease in the pressure to approximately 7 cm Hg of vacuum, a pressure which encourages a flaccid penis to re-enter the device, all in accordance with Boyle&#39; s Law. Enclosure  20 ′ thus functions in the manner of an integrated accumulator means functioning to maintain the vacuum within enclosure  20 ′ within the range of 4 to 7 cm Hg. 
         [0122]    Once the penis is fully inserted within device  10 A, the device may be further manipulated by sliding it part way off the penis, causing enclosure  20 ′ to partially collapse into depressed state  32 , while reducing its internal pressure to approximately 7 cm Hg of vacuum, facilitating a flaccid penis to be re-inserted, or slid back fully within the device, as desired. Such manipulation may be repeated, stimulating the male organ, until the user reaches orgasm. 
         [0123]    The foregoing description of the operational aspects of device  10 A applies equally to the operation of device  10 C depicted in  FIGS. 8-10 . 
         [0124]    The design of enclosure  20 ′ is not limited to that depicted in  FIG. 6  wherein the depressible portion is located in the middle of the enclosure. Alternative enclosure designs are equally effective including, for example, an enclosure design wherein the proximal half of the enclosure is rigid, while the distal half of the enclosure is flexible. 
         [0125]      FIG. 6B  schematically illustrates a further preferred embodiment  10 A′ of the masturbation device of the present invention which is adapted to be inserted into a bodily orifice of a partner. Device  10 A′ is essentially a modified version of device  10  A, such modifications being necessitated by the fact that the inserted portion of device  10 A′ will be inaccessible during use. The modifications are (1) check valve  28  has been relocated so that exhaust air will not be expelled into a body cavity and (2) initial insertion of a flaccid penis is effected by the momentary actuation of vacuum source  74  by either partner. Vacuum source  74  would not be needed during subsequent coitus-like stroking unless and until there occurred inadvertent air leakage past the aperture/penis hermetic seal at central opening  26 , in which event vacuum source  74  would be momentarily employed, by either partner, to expel the unwanted air. With practice, most partners would learn to avoid such interruptions caused by air leakage. 
         [0126]    In other respects, the accumulator means of insertable device  10 A′ is similar to that of device  10 A, whereby the depressible enclosure  20 ′ provides the accumulator means which enables use with a flaccid penis. Initial insertion of a flaccid penis into device  10 A′ may occur either before or after the device is inserted into a bodily orifice of a partner. 
         [0127]      FIG. 7  illustrates a further preferred embodiment  10 B of the masturbation device of the present invention with an integrated accumulator and an optional charging means (not shown). 
         [0128]    According to this embodiment, the distal end of alternative enclosure  20 ″ is fitted with a flexible membrane  34 . One end of optional flexible tube  16  is inserted over the exhaust end of check valve  28 . The other end of the optional flexible tube  16  attaches to an optional remote vacuum source (not shown) such as a squeeze bulb, or other device. 
         [0129]    With a lubricated glans penis sealing central opening  26 , two alternative accumulator charging means become available to the user for causing a lubricated flaccid penis to be drawn into resilient masturbation sleeve  22 . First, an optional remote vacuum source attached to tube  16  may be actuated (as for example squeezing and releasing a squeeze bulb) to draw air into tube  16  from enclosure  20 ″ through check valve  28 , thus creating a partial vacuum to draw the penis into sleeve  22 . Alternatively, using fingers or other implement, flexible membrane  34  may be pressed inwards towards the proximal end of enclosure  20 ″ such that it approximately assumes depressed state  34 ′, causing air to be expelled through check valve  28  while opening  26  is blocked by a glans penis. Releasing the depressing force on flexible membrane  34  creates a modest vacuum within enclosure  20 ″, causing the penis to be drawn into resilient masturbation sleeve  22 . Partially withdrawing the penis causes flexible membrane  34  to stretch inward towards position  34 ′, as a result of increased air volume and corresponding reduced air pressure within enclosure  20 ″, facilitating easy re-insertion of a flaccid penis. 
         [0130]    In the event of an inadvertent air admission at the proximal end of sleeve  22 , the process described above may be repeated, using either or both of the remote or manual accumulator charging means, to expel unwanted air and to draw the penis fully within sleeve  22  such that the user may resume manipulating the penis back and forward within sleeve  22  facilitating masturbation, and orgasm. 
         [0131]    A further preferred embodiment  10 C of the masturbation device of the present invention is schematically shown in  FIGS. 8-10 . In this embodiment, a cutaway section  36  in the middle portion of enclosure  20 ′″ is cut away as depicted in  FIG. 8 . A depressible tubular gripper  38  encircles the middle portion of enclosure  20 ′″, hermetically sealing cutaway section  36  as depicted in  FIG. 9 . Check valve  28  is installed at a convenient location on enclosure  20 ′″. The combination of cutaway section  36 , depressible tubular gripper  38  and check valve  28  comprises the integrated accumulator means of device  10 C. 
         [0132]    The operation of masturbation device  10 C is similar to that of device  10 A ( FIG. 6 ) and device  10 B ( FIG. 7 ). While blocking central opening  26  with his lubricated glans penis, the user depresses that portion of depressible tubular gripper  38  covering cutaway section  36  with, for example, his thumbs. The surface of depressible tubular gripper  38  above cutaway section  36  is thereby deformed from a native state  40  to a depressed state  40 ′ as shown in  FIG. 10 , which is a cross-sectional view taken along Line A-A of  FIG. 9 . This causes air to be expelled through check valve  28  and causes the penis to be drawn into resilient masturbation sleeve  22  through central opening  26  upon releasing the depressing force on depressible tubular gripper  38 . The user may move device  10 C forwards and backwards relative to the user, causing the penis to be stroked within sleeve  22 . The increased vacuum created by moving device  10 C away from the user, partially withdrawing the penis, causes depressible tubular gripper  38  to be drawn (sucked) into cutaway section  36 . Re-insertion of the penis slightly reduces the vacuum pressure within device  10 C thereby causing depressible tubular gripper  38  to lessen its incursion into cutaway section  36 , in conformance with its function as an accumulator means. As should be readily apparent, these actions may stimulate the penis and facilitate masturbation and orgasm. 
         [0133]      FIGS. 11 and 12  depict examples of commercially available masturbation sleeves  42   a  and  42   b  which may be employed as depressible tubular gripper  38  to enhance the visual attractiveness of device  10 C. Highly elastic, these sleeves  42   a  and  42   b  can grip a finger, yet easily stretch to slide onto an approximately 2.5 inch diameter cylinder such as enclosure  20 ′″, and thus be integrated into device  10 C. Acting as the accumulator means, portions (breasts, buttocks, for example) of sleeves  42   a  or  42   b  will move rhythmically up and down under the influence of changing vacuum pressure caused by stroking of the device, providing visual fantasy stimulation to the user. 
         [0134]    Schematically depicted in  FIGS. 13 through 15  is a further preferred embodiment  10 D of the masturbation device of present invention that can be interconnected with a prostate massage apparatus  56  to provide the user with a prostate massage simultaneously with masturbation of a flaccid penis, whereby the user&#39;s stroking motions are transmitted directly to the prostate, as pressure pulses, at the same stroking frequency determined from time to time by the user. 
         [0135]    Device  10 D is similar to device  10 B (illustrated in  FIG. 7 ) except that a nipple and check valve are not required. Referring first to  FIG. 15 , a longitudinal cross section taken along line C-C of  FIG. 13 , the flexible membrane  34  of device  10 B ( FIG. 7 ) is replaced in device  10 D with a piston  44  connected to a piston rod  46 . Other components, for example, a diaphragm, could be substituted for piston  44 . Piston rod  46  protrudes from an opening in the distal end of device  10 D and is restrained, together with piston  44 , from longitudinal movement relative to the user&#39;s body by one of at least the following three alternative methods. 
         [0136]    First, the distal end of piston rod  46  may be fitted with an optional handle  50  ( FIG. 13 ) to be held in one of the user&#39;s hands while the user uses his other hand to move the device in a stroking motion relative to the user&#39;s body. In this case the user may sit, stand, lie down, or move about while holding handle  50  and stroking device  10 D. 
         [0137]    Alternatively, an adjustable-length extension rod  52  ( FIG. 13 ) may be attached through ball-joint connection pivot  48  to the distal end of piston rod  46 , while the opposing end of extension rod  52  is connected in similar fashion to a stationary mount  54 . Stationary mount  54  may be secured through any of a variety of conventional means (clamp, suction cup, Velcro, etc.) to a desk, bathroom fixture, or other household object located in front of the user. In this case the user will not move about while using the device, but may assume any desired bodily position. Alternatively, optional handle  50  may be attached at the distal end of adjustable-length extension rod  52  whereby it may be held by the user&#39;s foot, for example, or by a partner. As will be obvious to persons skilled in the art, some or all of the energy required to slide piston  44  may be provided by an external energy source and such modification should be deemed within the intent and scope of the instant invention. 
         [0138]    Lastly, to use device  10 D as a combined prostate massage/masturbation device, prostate massage extension rod  58  (which should be of adjustable length, to accommodate dimensional variability of users&#39; anatomy) may be secured to a prostate massage apparatus  56  as illustrated in  FIG. 14 . Prostate massage apparatus  56 , made of semi-resilient material such as rubber or silicone, when inserted into the user&#39;s anus, substantially restrains piston  44  from longitudinal movement relative to the user&#39;s body while transmitting cyclical piston forces directly to the user&#39;s prostate. The prostate-massage-apparatus  56 /extension-rod  58  assembly illustrated in  FIG. 14  may be pre-inserted and secured with a rubber-band-like silicone doughnut (not shown) that is placed around extension rod  58  and the user&#39;s testicles to secure prostate massage apparatus  56  in position on the user&#39;s body such that the user may move about, with prostate massage apparatus  56  inserted, even before connecting extension rod  58  to piston rod  46  at ball-joint connection pivot  48 . During use, the user may sit, stand, lie down, or freely move about. 
         [0139]    The manner of use of device  10 D with a flaccid penis is as follows. With (1) the length of extension rod  58  suitably adjusted, (2) piston  44  bottomed out (touching or in near proximity to sleeve  22  as shown in  FIG. 15 ) and (3) with piston rod  46  in some manner longitudinally restrained (relative to the user&#39;s body), the user merely places his lubricated glans  60  at central opening  26  of device  10 D and pulls the device toward his body until the flaccid penis is fully inserted (all the way to the pubic bone, if desired). Because the diameter of piston  44  substantially exceeds the diameter of the penis, a flaccid penis will typically be pulled into the device a distance substantially exceeding the distance by which piston  44  was stroked, such excess volumetric capacity (piston displacement) being sufficient to compensate for lost motion inherent in this prostate-powered piston-accumulator arrangement. 
         [0140]    The piston-accumulator of device  10 D differs in several respects from the accumulators employed in masturbation device embodiments  10 - 10 C which may be pre-charged (initial pressure established) prior to use and, absent air leakage, need not be re-charged during use. A piston accumulator like the one depicted in  FIGS. 13-15 , on the other hand, is not pre-charged at all, it need not store negative-pressure air between strokes, and is not negatively affected by air leakage (whether at central opening  26  or around the piston), because the accumulator has excess volumetric capacity and self-recharges with each stroke (there being no necessary carryover of parameters of prior strokes). 
         [0141]    Piston accumulators like the one depicted in  FIGS. 13-15  have, as an additional differentiation from the other types of accumulators, the fact that the nonworking side of the piston (the piston rod side) produces an air flow to and from the device (respiration-like intake and exhaust, which may be directed to separate ports—not shown) with each stroke of the device. This cyclical air movement, while having no direct utility for the masturbation function of device  10 D, nevertheless may be harnessed to power ancillary functions to erotically stimulate the user&#39;s visual, auditory, and olfactory senses, timed in synchronization with the stroking frequency selected from time to time by the user. For example, each insertion of the penis can actuate, in a rhythmic fashion, (1) movement of an erotic object (as with device  10 C) or photograph flexibly affixed to the device, (2) sounds such as, for example, feminine squeals, and (3) odorant (perfume) dispersal. Also, a variable restriction (adjustable flow-control device) placed in the air inlet path (not shown) can serve to adjust the force placed against the prostate with each penis withdrawal on the outward stroke. 
         [0142]    Thus the combined prostate massage/masturbation device  10 D as depicted in  FIG. 14  can produce simultaneous tactile stimulation of the prostate, sphincter, perineum, testicles, and penis tissues, even in the complete absence of an erection, while adding concurrent and coordinated erotic stimulation for the eyes, ears, and nose, capabilities which can extend the benefits of orgasm to many additional males. 
         [0143]    Schematically depicted in  FIGS. 16 and 16A  is a further preferred embodiment  10 E of the masturbation device of the present invention with an integral accumulator comprised principally of an inflatable element  62  (typically, a balloon) which is secured through the wall of device  10 E by means of tapered breather tube  68 , which may be constructed of rigid plastic. Prior to use, the accumulator of device  10 E may be pre-charged by inflating inflatable element  62  to its inflated state  64 . Inflation may be accomplished by supplying pressurized air to breather tube  68  by inserting therein the proximal end of resilient inflation tube  66 , which encloses check valve  28 , whereby inflatable element  62  will remain inflated (pre-charged) until resilient inflation tube  66  is removed from breather tube  68 . Typically, just prior to use, the user will inflate (pre-charge) the accumulator orally by blowing air into resilient inflation tube  66 , but may alternatively choose to employ non-oral inflation means such as, for example, a squeeze bulb (not shown). 
         [0144]    To use device  10 E, the user pre-charges its accumulator, places his lubricated glans to block central opening  26 , and then removes inflation tube  66  from breather tube  68 , whereby ambient atmospheric pressure allows partial deflation of inflatable element  62 , thereby creating a modest vacuum of approximately 5 cm Hg within device  10 E such that the flaccid penis is drawn fully into the device. As the user strokes the device, inflatable element  62  will automatically partially deflate with each insertion stroke, and will re-inflate with each withdrawal stroke, such that inflatable element  62  does not obstruct penis entry. 
         [0145]    From time to time during use, the user may adjust the inflation volume of inflatable element  62  in order to either (1) increase or decrease the suction force, or (2) expel unwanted air which may have entered through central opening  26  during stroking. To decrease inflation and suction force, the user merely intentionally allows a limited amount of air to enter through central opening  26 . To increase inflation and suction force during use, the user will cause some of the air contained within the device to be expelled through check valve  28  which is installed through the wall of the device near its distal end as shown in  FIG. 16 . Such expulsion of air is effected in the following manner. With the penis partially withdrawn from the device, the user merely places a finger over the opening of breather tube  68  and then vigorously pushes the device against his body, causing air to be expelled through the second check valve  28  which is installed through the wall of device  10 E near its distal end. Said finger is then removed from the opening of breather tube  68  prior to a withdrawal stroke, during which increased inflation of inflatable element  62  will occur, resulting in an increased suction force being applied to the penis. Repeating this procedure (expelling additional air) will cause increased inflation and suction, until the penis and inflatable element  62  are jostling for space. With practice, a proficient user would learn to increase suction without missing a stroke, by quickly placing a finger over the opening of breather tube  68  during any regular inward stroke. 
         [0146]    It is to be noted that the foregoing re-inflation procedure does not require use of resilient inflation tube  66 , which had been previously removed and set aside. It is further noted that an experienced user might learn to refine his technique whereby he can use the foregoing procedure to cause the initial inflation, without employing a pressurized air supply (oral or otherwise) and thus without using inflation tube  66 . 
         [0147]    The function of internal rib  70  is to provide an air path  72  such that all contained air has an escape path, past inflatable element  62 , as shown in  FIG. 16A , and through check valve  28  which is installed in the wall of device  10 E near its distal end. 
         [0148]    Schematically depicted in  FIGS. 17 and 17A  is a further preferred embodiment  10 E′ of the masturbation device of the present invention which is operationally similar to device  10 E, but which includes modifications enabling a portion of device  10 E′ to be inserted into a bodily orifice of a partner during use. Such modifications comprise (1) relocating a check valve  28  such that exhaust air is not expelled into a body cavity and (2) providing inflation means which is accessible while a portion of the device is inserted. While the relocated check valve  28  is schematically depicted in  FIG. 17  as being disposed at the end of a length of flexible tube  16 , the air path provided by said flexible tube  16  may alternatively be provided, for example, by being molded integrally with the exterior wall of the device. 
         [0149]    Inflatable element  62  is secured to breather nozzle  76  which is in turn connected to flexible tube  16  which extends outside the partner&#39;s body where it is connected to breather tube  68  into which resilient inflation tube  66  may be inserted. As with device  10 A′, initial insertion of a flaccid penis into device  10 E′ may occur either before or after a portion of the device is inserted into a bodily orifice of a partner. 
         [0150]    The method of use of device  10 E′, including initial inflation of inflatable element  62 , and subsequent adjustment of inflation and suction, is as described above with respect to device  10 E, except that stroking is accomplished by coitus-like movement by the user and partner, and either partner may increase inflation and suction during use. 
       SUMMARY AND SCOPE 
       [0151]    As will be appreciated, the masturbation device of the present invention provides a simple, inexpensive, safe and comfortable means to promote masturbation, orgasm and ejaculation in males without requiring the subject to achieve a partial or full erection. The device is useful and therapeutic to those suffering ED as well as those who may wish to engage in masturbation, or to collect semen, without concern whether their penis achieves an erection. Furthermore, even in the absence of ED, the user may start masturbating immediately, before his erection occurs, thus reducing the time required to reach orgasm. 
         [0152]    The device employs conventional components in a novel and innovative manner to maintain a modest vacuum that both secures a flaccid penis within the device and maintains the penis there during manipulations facilitating orgasm. It offers an inexpensive and safe alternative to pharmaceuticals and mechanical vacuum devices designed to produce an erection, but not orgasm. 
         [0153]    Although the invention has been described with reference to specific embodiments, structures, configurations and methods, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. 
         [0154]    By way of example, diaphragms, bellows and other means for controlling fluids may be substituted for the accumulator components described with respect to the preferred embodiments without departing from the spirit and scope of the taught invention. Means other than those shown and described can be used to maintain the modest vacuum within the masturbation device. A variety of accessories such as, for example, visuals, photos, audio, video, motion, touch, taste, odorants, makeup, heat, vibration, lubrication system, resilient masturbation sleeve, external energy source, remote control, wireless remote, mounts, male condom, female condom, scrotum retractor, concealment, disguise, container, prostate probe, perineum probe, exerciser, wearable accessories, female/couple accessories familiar to those of ordinary skill in the art, may be employed with the device. The device may be formed and shaped to simulate human features that are likely to please and arouse the user. All such modifications should be deemed within the intent and scope of the instant invention.