Source: http://www.google.com/patents/US20020072698?dq=6446111
Timestamp: 2014-03-09 23:11:03
Document Index: 223867181

Matched Legal Cases: ['art 6', 'art 6', 'art 6', 'art 6', 'art 6', 'art 6']

Patent US20020072698 - Pumping device for helping severe failing of left ventricle or heart - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA blood pumping device includes a receptacle for receiving blood and having a non-valved inlet and outlet openings coupled to an aorta and the femoral artery. The receptacle includes a surface having a peripheral portion coupled to a peripheral portion of a diaphragm, and having a port coupled to a pump....http://www.google.com/patents/US20020072698?utm_source=gb-gplus-sharePatent US20020072698 - Pumping device for helping severe failing of left ventricle or heartAdvanced Patent SearchPublication numberUS20020072698 A1Publication typeApplicationApplication numberUS 10/045,379Publication dateJun 13, 2002Filing dateJan 15, 2002Priority dateDec 13, 2000Publication number045379, 10045379, US 2002/0072698 A1, US 2002/072698 A1, US 20020072698 A1, US 20020072698A1, US 2002072698 A1, US 2002072698A1, US-A1-20020072698, US-A1-2002072698, US2002/0072698A1, US2002/072698A1, US20020072698 A1, US20020072698A1, US2002072698 A1, US2002072698A1InventorsShih Chen, Kevin Cheng, Jih Chiang, Tzu Kao, Pong Lu, Chin Tung, Jeng WeiOriginal AssigneeChiang Jih Chung, Tung Chin Sheng, Cheng Kevin Kuo Tsai, Chen Shih Hsiung, Kao Tzu Min, Jeng Wei, Lu Pong JeuExport CitationBiBTeX, EndNote, RefManReferenced by (6), Classifications (14) External Links: USPTO, USPTO Assignment, EspacenetPumping device for helping severe failing of left ventricle or heartUS 20020072698 A1Abstract A blood pumping device includes a receptacle for receiving blood and having a non-valved inlet and outlet openings coupled to an aorta and the femoral artery. The receptacle includes a surface having a peripheral portion coupled to a peripheral portion of a diaphragm, and having a port coupled to a pump. The pump may shrink the diaphragm to draw the blood into the receptacle and may expand the diaphragm to pump the blood in the chamber of the receptacle out of the inlet opening and the outlet opening of the receptacle and into the aorta and the femoral artery of the patient. Images(7) Claims(2)
BRIEF DESCRIPTION OF THE DRAWINGS [0011]FIG. 1 is a perspective view of a blood pumping device in accordance with the present invention; [0012]FIG. 2 is a cross sectional view taken along lines 2-2 of FIG. 1; [0013]FIG. 3 is a schematic view illustrating the engagement or the attachment of the blood pumping device in the human body; [0014]FIG. 4 is a partial cross sectional view illustrating the engagement or the attachment of the blood pumping device to the aorta of the human body; [0015]FIG. 5 is a partial cross sectional view similar to FIG. 4, illustrating the operation of the blood pumping device or the operation of the diaphragm; [0016]FIG. 6 is a perspective view showing a typical blood pumping device; and [0017]FIG. 7 is a cross sectional view taken along lines 7-7 of FIG. 6, for showing the inner structure of the typical blood pumping device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0018] Referring to the drawings, and initially to FIGS. 1-4, a blood pumping device in accordance with the present invention comprises a receptacle 4 including a chamber 40 formed or provided therein for receiving blood, and including an inlet or a larger opening 44 for coupling to the ascending aorta and for receiving the blood from the ascending aorta and for allowing the blood to flow into the chamber 40 of the receptacle. For example, as shown in FIGS. 3-5, a hose 440 may be used to couple the inlet or the larger opening 44 of the receptacle 4 to the aorta 60, such as the portion of the aorta 60 that is located between the heart 6 and the aortic arch 63, and particularly between the heart 6 and the innominate artery 64 that is coupled to the aortic arch 63. [0019] The receptacle 4 includes an outlet or a smaller opening 45 for coupling to the artery, such as the femoral artery 61 of the patient and for allowing the blood to be pumped to flow to the femoral artery 61, in order to facilitate the blood circulation. It is to be noted that no check valves are required to be provided or disposed in the outlet or the smaller opening 45 and the inlet or the larger opening 44 of the receptacle 4. A check valve 8 is required to be disposed in the aorta 60 for preventing the blood from flowing backward from the aortic arch 63 to the aorta 60, and for allowing the blood to be pumped to flow into the aortic arch 63 only. The common femoral artery may be snared to decrease blood from flowing backward through the outlet or the smaller opening 45 to the receptacle 4. [0020] The receptacle 4 includes a flat peripheral surface or a flat bottom or side surface 41 having a port 42 formed or provided therein. A capsule or an envelope or a rubber or resilient diaphragm 43 is formed or provided in the receptacle 4 and attached to or extended from the flat surface 41 of the receptacle 4. The diaphragm 43 includes a space 430 formed or provided therein, and includes a peripheral portion 431 coupled to or secured to the peripheral portion 411 of the surface 41, for example. A pump, such as a hand pump 7 or the like (FIG. 3) is coupled to the port 42 of the receptacle 4 with a hose 5, for filling or drawing or pumping an air or a fluid into or out of the space 430 formed or surrounded by the diaphragm 43, and for drawing the blood into the chamber 40 of the receptacle 4 from the aorta 60, and for pumping the blood in the chamber 40 of the receptacle 4 out to the aorta and femoral artery 61 of the patient. [0021] In operation, as shown in FIG. 3, the hand or other pumps 7 may draw or pump the air or the fluid to deflate the diaphragm 43, or to expand the diaphragm 43 (FIG. 5), such that the blood may be drawn from the aorta 60 into the chamber 40 of the receptacle 4. The check valve 8 in the aorta 60 may prevent the blood from flowing backward from the aortic arch 63 to the aorta 60, and the aortic semilunar valve 66 may be used to prevent the blood from flowing backward from the aorta 60 to the heart 6 and allows the blood to flow out of the left ventricle of the heart 6 only. The common femoral artery 61 may be snared during operation to decrease the amount of blood from backward flowing to the receptacle 4, such that the blood may be effectively drawn from the left ventricle of the heart 6 into the receptacle 4 when the diaphragm 43 is deflated. [0022] As shown in FIG. 4, when the diaphragm 43 is inflated by the hand or the other pumps 7 which may force or pump the air or the fluid, through the hose 5, into the space 430 enveloped by the diaphragm 43, to expand the diaphragm 43. The blood in the chamber 40 of the receptacle 4 may thus be forced to flow out of the receptacle 4 and to flow into the aortic arch 63 and the femoral artery 61. The aortic semilunar valve 66 may prevent the blood from flowing backward from the aorta 60 into the left ventricle of the heart 6 at this moment, and the check valve 8 in the aorta 60 allows the blood to flow into the aortic arch 63 and the innominate artery 64. Accordingly, the blood in the chamber 40 of the receptacle 4 may be effectively forced or pumped, by the diaphragm 43, to flow out of the receptacle 4 and to flow into the aortic arch 63 and the femoral artery 61 when the diaphragm 43 is expanded. [0023] The blood pumping device includes no dead angles or dead portions. The blood in the chamber 40 of the receptacle 4 may be effectively forced or pumped out of the receptacle 4. [0024] Accordingly, the blood pumping device in accordance with the present invention may be used to help draining the blood out of the left ventricle and for helping recovery of the heart or for facilitating the blood circulation of the patients. [0025] Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed. Referenced byCiting PatentFiling datePublication dateApplicantTitleUS7217236May 25, 2004May 15, 2007Innovamedica S.A. De C.V.Universal pneumatic ventricular assist deviceUS7494477 *Sep 1, 2004Feb 24, 2009Pulsecath B.V.Catheter pump, catheter and fittings therefore and methods of using a catheter pumpUS7988655Jan 9, 2009Aug 2, 2011Pulsecath B.V.Catheter pump, catheter and fittings therefore and methods of using a catheter pumpUS8147543 *Nov 1, 2006Apr 3, 2012Thoraxica AgArtificial valve for implantation and related methodsWO2009118499A1 *Mar 26, 2008Oct 1, 2009Cardio Assist LimitedHeart assist deviceWO2012004618A1 *Jul 6, 2011Jan 12, 2012John NanasPressure relief system of the air-chamber of the paraaortic counterpulsation pump* Cited by examinerClassifications U.S. Classification604/6.11, 623/3.26, 623/3.16, 604/9International ClassificationF04B9/08, F04B43/02, A61M1/10, A61M1/12, F04B15/02, F04B43/06, F04B23/00Cooperative ClassificationA61M1/107, A61M2001/1062European ClassificationA61M1/10E51RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google