|Publication number||US3331371 A|
|Publication date||Jul 18, 1967|
|Filing date||Mar 9, 1965|
|Priority date||Mar 9, 1965|
|Publication number||US 3331371 A, US 3331371A, US-A-3331371, US3331371 A, US3331371A|
|Inventors||Ferdinand A Rocchi, Simon Samuel, Belivean Maurice|
|Original Assignee||Prosit Service Corp|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (7), Referenced by (103), Classifications (13)|
|External Links: USPTO, USPTO Assignment, Espacenet|
ly 1 1967 t F. A. ROCCHI ETAL 3,331,371
CATHETER HAVING INTERNAL FLOW VALVE AT DISTAL END THEREOF Filed March 9, 1965 INVENTORS FERDINAND A. ROCCH/ SAMUEL SIMON BY MAURICE EEL/I/EAU Y 12 e/ja/ ATTORNEY United States Patent 3,331,371 CATHETER HAVING INTERNAL FLOW VALVE AT DISTAL END THEREOF Ferdinand A. Rocchi, .Wappingers Falls, and Samuel Simon and Maurice Beliveau, Poughkeepsie, N .Y., assignors to Prosit Service Corporation, Wappingers Falls,
Filed Mar. 9, 1965, Ser. No. 438,316 7 Claims. (Cl. 128-349) ABSTRACT OF THE DISCLOSURE A catheter having a valve for controlling the flow of fluid therethrough comprising an elongated tube of flexible material having a closed end, an open end and a fluid entrance hole in the wall thereof adjacent the closed end. Valve means is provided within the tube adjacent the fluid entrance hole. The valve means is operable between a position in which the valve means extends completely across and closes the hole to prevent fluid from entering the tube and a position in which the hole is uncovered to permit fluid to enter the tube. A valve operating means extends from the valve means to the open end of the tube to permit the valve to be operated between its two positions.
A catheter is a long tube-like device that is inserted into the body of a person in order to withdraw fluids therefrom. The most common form of catheter is a rubber tube inserted by way of the urethra into the bladder of a person in order to withdraw fluid from the bladder. Often it is necessary that the catheter be retained in the person for an extended period of time. To properly hold the catheter in place, it is generally provided with an inflatable bag' which, when inflated, will retain the catheter in the person.
In the use of such catheters it is the practice to provide a bottle at the outlet end of the catheter to catch the fluid draining therethrough. When the person using the catheter is ambulatory, the bottle is usually secured to the body or leg of the person. To so carry around such a drainage 'bottle is not only uncomfortable, but since there is a constant drainage of fluid into the bottle, it becomes odoriferous and is disagreeable to the person and to others. Since a continuous drainage is usually not necessary, it would be desirable to have a catheter which includes means operable by the user to control the flow of fluid therethrough.
It is the object of the present invention to provide a novel catheter.
It is another object of the present invention to provide a catheter having means operable by the user for controlling the flow of fluid therethrough.
It is a further object of the present invention to provide a catheter having a valve therein operable by the user to permit and stop the flow of fluid therethrough.
It is still another object of the present invention to provide a catheter having a valve in its forwardrnost end which is operable by the user to permit and stop the flow of fluid therethrough.
Other objects will appear hereinafter.
For the purpose of illustrating the invention there is shown in the drawings forms which are presently preferred; it being understood, however, that this invention is not limited to the precise arrangements and instrumentalities shown.
FIGURE 1 is a longitudinal sectional view, partially in elevation, of a catheter of the present invention, with the valve closed.
FIGURE 2 is an elevational view, partially in section, of the catheter shown in FIGURE 1, but with valve in its open position.
FIGURE 3 is a sectional view taken along line 3--3 of FIGURE 1.
FIGURE 4 is a sectional view taken along line 4-4 of FIGURE 2.
FIGURE 5 is an elevational view, partially in section of a modification of the catheter of the present invention with the valve closed.
FIGURE 6 is a view similar to that of FIGURE 5 with the valve in its open position.
FIGURE 7 is a sectional view taken along line 7-7 of FIGURE 6.
FIGURE 8 is an elevational view, partially in section, of a portion of still another modification of the catheter of the present invention, with the valve in its open position.
FIGURE 9 is an elevational view of the catheter of FIGURE 8 with the valve closed.
FIGURE 10 is a sectional view taken along line 1010 of FIGURE 9.
Referring initially to FIGURE 1, the catheter of the present invention is generally designated as 10. Catheter lli comprises an elongated, cylindrical drainage tube 12 of a flexible material, such as rubber. The forwardmost end 14 of the tube 12 is closed and rounded so as to permit ease of insertion of the catheter. A fluid entrance hole 16 is provided through the tube 12 adjacent the forwardmost end 14. An inflatable bag 18 is provided around and secured to the tube 12 behind the fluid entrance hole 16. The bag 18, which is conventional in most catheters, may be secured to the tube by any suitable means, such as by a cement. An air passage 20 extends through the wall of the tube 12 from the rearmost end of the tube to the interior of the bag 18 to permit the bag 18 to be inflated after the catheter is inserted.
Catheter 10 is provided with a valve therein adjacent its forwardmost end. The valve comprises a rubber ball 22 of a diameter equal to or slightly larger than the inner diameter of the tube 12. The ball 22 is positioned in the tube 12 so that it completely covers the fluid entrance hole 16. A cord 24 extends between and is secured to the ball 20 and the forwardmost end 14 of the tube 12 to hold the ball in position. A cord 26 is secured to the ball 22 and extends completely through the tube 12 to the rearmost end thereof. A knot 28 is provided in the cord 26 slightly forward of the rearmost end of the tube 12. A slot 30 is provided in the wall of the tube 12 at the rearmost end thereof.
As shown in FIGURES 1 and 3, the ball 22 normally completely and tightly covers the fluid entrance hole 16 so that no fluid can enter the tube. However, when the cord 26 is pulled rearwardly, a force is applied to the ball 22 which elongates the ball to an oval shape as shown in FIGURE 2. The force is also applied to the forwardmost end 14 of the tube. Since the tube 12 is flexible, this causes the tube to bulge radially outwardly around the ball 22. Thus, as shown in FIGURES 2 and 4, there is provided a space between the fluid entrance hole 16 and the ball 22 so that fluid can pass into the tube 12 and drain through the catheter 10. To hold the valve in this open position, the cord 26 can be inserted in the slot 30 with the knot 28 being against the outer surface of the tube 12 as shown in FIGURE 2. Thus, the outlet 10 is provided with a valve which can be easily operated by the user to permit or stop the drainage of fluid therethrough.
Referring to FIGURE 5, a modification of the catheter of the present invention is generally designated as 10a. Catheter 10a is identical to catheter 10 of FIGURE 1 except for the construction of the valve. The valve of catheter 10a comprises a hollow, cylindrical sleeve 32 of a rigid material, such as a metal or plastic. The ends 32a and 32b of the sleeve 32 are serrated. The sleeve 32 is of a diameter equal to or slightly larger than the inner diameter of the tube 12a and of a length longer than the length of the fluid entrance hole 16a in the tube 12a. The sleeve 32 is positioned within the tube 12a so that it completely covers and seals the fluid entrance hole 16a. A cord 34 is secured at one end to the inner surface of the forwardmost end 14a of the tube 12a, and extends completely through the tube to the rearmost end thereof. A knot 36 is provided in the cord 34 at a point slightly forward of the rearmost end of the tube 12a.
As shown in FIGURE 5, the fluid entrance hole 16a is normally sealed by the sleeve 32 so that no fluid can enter the tube 12a. However, when the cord 34 is pulled rearwardly, a force is applied to the forwardmost end 1411 of the tube 12a. Since the tube 12a is of a flexible material, this causes the tube 12a to bulge radially outwardly around the sleeve 32 as shown in FIGURE 6. Thus, as shown in FIGURES 6 and 7, there is provided a space between the sleeve 32 and the fluid entrance hole 16a so that fluid can enter the space. The fluid then passes around the serrated ends 32a and 32b of the sleeve 32 into the tube 12a and thereby drains through the catheter 10a. The valve can be held in its open position by inserting the cord 34 in the slot 30a in the tube 12a with the knot 36 being against the outer surface of the tube 12a as shown in FIGURE 6.
Referring to FIGURE 8, still another modification of the catheter of the present invention is generally designated as 10b. Catheter 10b is identical to catheters 10 and 10a of FIGURES 1 and respectively, except for the construction of the valve. The valve of catheter b comprises an inflatable balloon 38 of a flexible material, secured to the inner surface of the tube 12b adjacent the forwardmost end 14b of the tube. The balloon 38 is secured to a portion of the inner surface of the tube 12b away from the fluid entrance hole 16b, and is of a length to extend from a point forward of the hole 161) to a point rearward of the hole 16b. An inflation tube 40 extends along the inner surface of the tube 1211 from the balloon 38 to the rearmost end of the tube so as to permit inflation of the balloon by a gas or liquid.
As shown in FIGURE 8, the balloon 38 is deflated so that the fluid entrance hole 161) is open to permit fluid to enter the tube 12b and drain through the catheter 10b. When the balloon is inflated by admitting a gas or fluid into the balloon through the inflation tube 40, the balloon expands completely across the tube 121) as shown in FIGURES 9 and 10, and thereby tightly covers the fluid entrance hole 16b so as to stop any flow of fluid into the tube 12b. Thus, by inflating and deflating the balloon 32, the flow of fluid through the catheter 10b can be stopped and permitted.
Thus, there is provided by the present invention a catheter having a valve means in its forwardmost end which can be easily operated by the user to control the flow of fluid therethrough. This catheter can be used not only to open a blockage of the urethra, but also for the purpose of controlling the flow of urine where the user cannot normally control such flow. Another advantage of the catheters of the present invention is that they do not have to extend out of the urethra as the catheters heretofore used, but only have to be of a length to extend from the bladder to slightly beyond the sphincter muscle, whereas catheters heretofore used are much longer. It has been found that the longer catheters tend to creep inwardly into the bladder when the user moves around. However, the shorter length catheters of the present invention do not have such a tendency to creep and are more comfortable to wear.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof and, accordingly, reference should be made to the appended claims, rather than to the foregoing specification as indiacting the scope of the invention.
1. A catheter comprising an elongated tube of flexible material having a closed end and an open end, a fluid entrance hole in the wall of said tube adjacent said closed end, valve means within said tube adjacent said fluid entrance hole, said valve means being operable between a position in which the valve means extends completely across and closes said hole to prevent entrance of fluid into said tube and a position in which the fluid entrance hole is uncovered to permit fluid to enter the tube, and means for operating said valve means extending from said valve means to the open end of said tube.
2. A catheter in accordance with claim 1 in which the valve means comprises a flexible ball within said tube, said ball being of a size and being positioned so that it normally extends across and closes the fluid entrance hole, and a cord extending between and secured to the ball and the closed end of the tube to hold the ball in position.
3. A catheter in accordance with claim 2 in which the means for operating the valve comprises a cord secured to the ball and extending through the tube to the Open end of the tube.
4. A catheter in accordance with claim 1 in which the valve means comprises a rigid, hollow sleeve within said tube and extending across the fluid entrance hole, said sleeve being of a diameter so as to normally close the fluid entrance hole, and the means for operating the valve comprises a cord secured to the inner surface of the closed end of the tube and extending through said tube to the open end thereof, said cord adapted to apply a force on the closed end of the tube so as to bulge the wall of the tube away from the sleeve and uncover the fluid entrance hole.
5. A catheter in accordance with claim 4 in which the ends of the sleeve are serrated.
6. A catheter in accordance with claim 1 in which the valve comprises a balloon secured to the inner wall of the tube adjacent the fluid entrance hole, said balloon extending across and closing said hole when the balloon is inflated so as to prevent fluid from entering the tube and uncovering said hole when deflated so as to permit fluid to enter the tube.
7. A catheter in accordance with claim 6 including an inflation tube extending from the balloon through the tube to the open end of the tube to carry an inflation material to and from said balloon for inflating and deflating the balloon.
References Cited UNITED STATES PATENTS 2,073,069 3/1937 Lee 2724.1 2,156,522 5/1939 Bowmer 27-24.1 2,616,429 11/ 1952 Merenlender 128-350 2,649,092 8/ 1953 Wallace 128-349 2,819,718 1/1958 Goldman 128-350 2,919,697 1/1960 Kim 128-349 2,981,254 4/1961 Vanderbilt 148-350 RICHARD A. GAUDET, Primary Examiner.
DALTON L. TRULUCK, Examiner.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2073069 *||Jul 27, 1936||Mar 9, 1937||Lee Raymond||Embalming drainage tube|
|US2156522 *||Jun 11, 1937||May 2, 1939||Amos V Bowmer||Booster embalming tube|
|US2616429 *||Aug 27, 1951||Nov 4, 1952||Israel Merenlender||Draining probe|
|US2649092 *||Oct 26, 1949||Aug 18, 1953||American Cystoscope Makers Inc||Catheter|
|US2819718 *||Jul 16, 1953||Jan 14, 1958||Isidore H Goldman||Drainage tube|
|US2919697 *||Oct 8, 1958||Jan 5, 1960||Kim Se Kyong||Catheters|
|US2981254 *||Nov 12, 1957||Apr 25, 1961||Vanderbilt Edwin G||Apparatus for the gas deflation of an animal's stomach|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3483859 *||Nov 29, 1967||Dec 16, 1969||Pittman Fred E||String for marking bleeding in upper gastro-intestinal tract|
|US3503400 *||Jul 12, 1967||Mar 31, 1970||Sven M Osthagen||Urethral valve|
|US3642004 *||Jan 5, 1970||Feb 15, 1972||Life Support Equipment Corp||Urethral valve|
|US3769981 *||Feb 9, 1972||Nov 6, 1973||Kendall & Co||Urinary catheter|
|US3797478 *||Jul 11, 1972||Mar 19, 1974||M Walsh||Multi-functional valve for use in the urethra|
|US3811450 *||Oct 25, 1972||May 21, 1974||P Lord||Catheters|
|US3841304 *||Oct 16, 1972||Oct 15, 1974||A Jones||Inflatable leakage inhibitor|
|US3896815 *||Jun 6, 1974||Jul 29, 1975||Shiley Lab Inc||Expansible tip catheters|
|US4026298 *||Dec 3, 1975||May 31, 1977||Grausz Investment Co.||Artificial urethra|
|US4140119 *||May 12, 1977||Feb 20, 1979||Pollack Charles N||Balloon-tipped extracorporeal cannula apparatus and method for insertion of same|
|US4166468 *||Aug 5, 1977||Sep 4, 1979||Haynie Louis D||Apparatus for endotracheal and esophageal intubation|
|US4186745 *||Feb 15, 1978||Feb 5, 1980||Kauzlarich James J||Porous catheters|
|US4227533 *||Nov 3, 1978||Oct 14, 1980||Bristol-Myers Company||Flushable urinary catheter|
|US4248221 *||Aug 25, 1978||Feb 3, 1981||Latex Products (Proprietary) Limited||Endobronchial tubes|
|US4285341 *||Sep 24, 1979||Aug 25, 1981||Pollack Charles N||Extracorporeal cannula apparatus with retractable intralumenal balloon and method for using same|
|US4301797 *||Nov 22, 1978||Nov 24, 1981||Pollack Charles N||Balloon-tipped extracorporeal cannula apparatus and method for insertion of same|
|US4350161 *||May 9, 1980||Sep 21, 1982||Davis Jr Richard C||Indwelling urethral catheter and method|
|US4432757 *||Apr 9, 1982||Feb 21, 1984||Davis Jr Richard C||Indwelling urethral catheter|
|US4471782 *||Sep 30, 1982||Sep 18, 1984||Luther Shuffield||Medical implement for use in rectum and method for inserting same|
|US4516578 *||Aug 25, 1983||May 14, 1985||Luther Shuffield||Rectal device and method of inserting same|
|US4592340 *||May 2, 1984||Jun 3, 1986||Boyles Paul W||Artificial catheter means|
|US4692141 *||Jan 29, 1986||Sep 8, 1987||Mahurkar Sakharam D||Double lumen catheter|
|US4705501 *||Apr 12, 1982||Nov 10, 1987||Regents Of The University Of Minnesota||Bi-directional, anti-reflux vascular access system|
|US4705507 *||Apr 28, 1986||Nov 10, 1987||Boyles Paul W||Arterial catheter means|
|US4723946 *||Feb 12, 1986||Feb 9, 1988||Kay Dennis M||Urinary catheter, hygiene system and process therefor|
|US4770652 *||Jul 18, 1986||Sep 13, 1988||Mahurkar Sakharam D||Method and apparatus for using dual-lumen catheters for extracorporeal treatment|
|US4808155 *||Sep 16, 1987||Feb 28, 1989||Mahurkar Sakharam D||Simple double lumen catheter|
|US4822333 *||Sep 2, 1987||Apr 18, 1989||Lavarenne Vincent A||Urethral endoprosthesis|
|US4846806 *||Oct 6, 1987||Jul 11, 1989||501 Regents Of University Of Minnesota||Implantable intravascular access system|
|US4850982 *||Feb 11, 1988||Jul 25, 1989||Erlich Brian H||Catheter|
|US4861337 *||Mar 2, 1988||Aug 29, 1989||Sherwood Medical Company||Collapsible urethral catheter|
|US4909785 *||Nov 2, 1988||Mar 20, 1990||American Medical Systems, Inc.||Method for valving body fluids|
|US4946449 *||Dec 18, 1986||Aug 7, 1990||Davis Jr Richard C||Indwelling urethral catheter system and method|
|US4950226 *||Sep 11, 1989||Aug 21, 1990||Bruce Barron||Surgical shunt for liver isolation|
|US5163921 *||Oct 4, 1990||Nov 17, 1992||Feiring Andrew J||Valved perfusion cardiovascular catheters|
|US5188618 *||May 3, 1991||Feb 23, 1993||Thomas Bruce W||Thrombus-mobilizing thoracostomy tube|
|US5197951 *||Feb 27, 1986||Mar 30, 1993||Mahurkar Sakharam D||Simple double lumen catheter|
|US5221255 *||Oct 16, 1991||Jun 22, 1993||Mahurkar Sakharam D||Reinforced multiple lumen catheter|
|US5360403 *||Jul 23, 1992||Nov 1, 1994||Lake Region Manufacturing Co., Inc.||Balloon catheter with lumen occluder|
|US5374245 *||Apr 28, 1993||Dec 20, 1994||Mahurkar; Sakharam D.||Reinforced multiple-lumen catheter and apparatus and method for making the same|
|US5378238 *||Jun 8, 1993||Jan 3, 1995||Scimed Life Systems, Inc.||Innerless dilatation catheter with balloon stretch or manual valve|
|US5562617 *||Jan 18, 1994||Oct 8, 1996||Finch, Jr.; Charles D.||Implantable vascular device|
|US5624395 *||Oct 20, 1995||Apr 29, 1997||Cv Dynamics, Inc.||Urinary catheter having palpitatable valve and balloon and method for making same|
|US5707357 *||Feb 22, 1996||Jan 13, 1998||C V Dynamics, Inc.||Balloon catheter having palpitatable discharge valve and retention collar|
|US5713859 *||Apr 18, 1996||Feb 3, 1998||Vasca, Inc.||Implantable vascular device|
|US5755780 *||Nov 7, 1996||May 26, 1998||Vasca, Inc.||Implantable vascular device|
|US5792042 *||Aug 8, 1996||Aug 11, 1998||Cohen; Kenneth L.||Apparatus for treating incontinence in females|
|US5795288 *||Aug 8, 1996||Aug 18, 1998||Cohen; Kenneth L.||Apparatus with valve for treating incontinence|
|US5797869 *||Jun 7, 1995||Aug 25, 1998||Vas-Cath Incorporated||Multiple lumen catheter|
|US5807356 *||Oct 4, 1995||Sep 15, 1998||Vasca, Inc.||Catheter with valve|
|US5836924 *||Jan 2, 1997||Nov 17, 1998||Mri Manufacturing And Research, Inc.||Feeding tube apparatus with rotational on/off valve|
|US5857464 *||Jun 7, 1995||Jan 12, 1999||Desai; Jawahar M.||Catheter for media injection|
|US5964732 *||Dec 18, 1997||Oct 12, 1999||Abbeymoor Medical, Inc.||Urethral apparatus with position indicator and methods of use thereof|
|US5971967 *||Aug 19, 1997||Oct 26, 1999||Abbeymoor Medical, Inc.||Urethral device with anchoring system|
|US5989206 *||Oct 31, 1997||Nov 23, 1999||Biolink Corporation||Apparatus and method for the dialysis of blood|
|US6042569 *||Jan 20, 1998||Mar 28, 2000||Vasca, Inc.||Subcutaneously implanted cannula and methods for vascular access|
|US6050934 *||Feb 25, 1998||Apr 18, 2000||Cv Dynamics, Inc.||Urinary catheter having palpitatable discharge valve with protective shoulders|
|US6052612 *||Mar 27, 1998||Apr 18, 2000||Desai; Jawahar M.||Catheter for media injection|
|US6053901 *||Oct 2, 1996||Apr 25, 2000||Vasca, Inc.||Subcutaneously implanted cannula and method for arterial access|
|US6056717 *||Feb 2, 1998||May 2, 2000||Vasca, Inc.||Implantable vascular device|
|US6167886 *||Aug 27, 1999||Jan 2, 2001||Medi-Globe Vertriebs Gmbh||Device for treatment of male and female urinary incontinence|
|US6203526 *||Aug 21, 1998||Mar 20, 2001||Direct Therapeutics, Inc.||Apparatus for preventing loss of a composition during a medical procedure|
|US6206849||Aug 25, 1998||Mar 27, 2001||Vas-Cath Incorporated||Multiple lumen catheter|
|US6221060||Oct 4, 1999||Apr 24, 2001||Abbeymoor Medical, Inc.||Urethral device with anchoring system|
|US6258060||Jun 30, 1999||Jul 10, 2001||Abbeymoon Medical, Inc.||Urethral apparatus with position indicator and methods of use thereof|
|US6398764||Dec 27, 1999||Jun 4, 2002||Vasca. Inc.||Subcutaneously implanted cannula and method for arterial access|
|US6620118||Nov 23, 1999||Sep 16, 2003||Biolink Corporation||Apparatus and method for the dialysis of blood|
|US6701180||Apr 17, 2000||Mar 2, 2004||Jawahar M. Desai||Catheter for media injection|
|US6786887 *||Jan 26, 2001||Sep 7, 2004||Scimed Life Systems, Inc.||Intravascular occlusion balloon catheter|
|US7229429||Mar 27, 2001||Jun 12, 2007||Vas-Cath Inc.||Multiple lumen catheter|
|US7458957 *||Mar 17, 2005||Dec 2, 2008||William J. Dwyer||Universal valve for Foley type urinary catheter|
|US7468051||Mar 2, 2004||Dec 23, 2008||Boston Scientific Scimed, Inc.||Occlusion balloon catheter with external inflation lumen|
|US7473237 *||Jan 5, 2006||Jan 6, 2009||The Cleveland Clinic Foundation||Apparatus for auto-retroperfusion of a coronary vein|
|US7641669||Mar 29, 2004||Jan 5, 2010||Boston Scientific Scimed, Inc.||Intravascular occlusion balloon catheter|
|US7824406 *||Dec 28, 2006||Nov 2, 2010||St. Jude Medical, Atrial Fibrillation Division, Inc.||Irrigated ablation catheter having a valve to prevent backflow|
|US7892237 *||Feb 22, 2011||Eric Dahlinger||Surgical access device and method|
|US8038644||Apr 10, 2008||Oct 18, 2011||Jotillou Enterprises Ltd.||Catheter|
|US8052684||Nov 8, 2011||St. Jude Medical, Atrial Fibrillation Division, Inc.||Irrigated ablation catheter having parallel external flow and proximally tapered electrode|
|US8439909||May 14, 2013||St. Jude Medical, Atrial Fibrillation Division, Inc.||Cooled ablation catheter with reciprocating flow|
|US8584678||Feb 4, 2011||Nov 19, 2013||Guillermo L. Pol||Medical tubes for selective mechanical ventilation of the lungs|
|US8690870||Dec 28, 2006||Apr 8, 2014||St. Jude Medical, Atrial Fibrillation Division, Inc.||Irrigated ablation catheter system with pulsatile flow to prevent thrombus|
|US9232948||Dec 23, 2003||Jan 12, 2016||Stryker Corporation||Catheter with distal occlusion apparatus|
|US20010044594 *||Mar 27, 2001||Nov 22, 2001||Vas-Cath Incorporated||Multiple lumen catheter|
|US20040044307 *||Oct 4, 2001||Mar 4, 2004||Richardson Margaret P.||Urinary catheters|
|US20040152980 *||Jan 23, 2004||Aug 5, 2004||Desai Jawahar M.||Catheter for media injection|
|US20040181189 *||Mar 29, 2004||Sep 16, 2004||Scimed Life Systems, Inc.||Intravascular occlusion balloon catheter|
|US20050137622 *||Dec 23, 2003||Jun 23, 2005||Scimed Life Systems, Inc.||Catheter with distal occlusion|
|US20050197667 *||Mar 2, 2004||Sep 8, 2005||Scimed Life Systems, Inc.||Occlusion balloon catheter with external inflation lumen|
|US20060189928 *||Feb 17, 2006||Aug 24, 2006||Siemens Aktiengesellschaft||Catheter device|
|US20060195060 *||Jan 5, 2006||Aug 31, 2006||Navia Jose L||Apparatus for auto-retroperfusion of a coronary vein|
|US20060212024 *||Mar 17, 2005||Sep 21, 2006||William Dwyer||Universal valve for foley type urinary catheter|
|US20080161792 *||Dec 28, 2006||Jul 3, 2008||Huisun Wang||Irrigated ablation catheter having a valve to prevent backflow|
|US20080161795 *||Dec 28, 2006||Jul 3, 2008||Huisun Wang||Irrigated ablation catheter system with pulsatile flow to prevent thrombus|
|US20090048511 *||Aug 18, 2008||Feb 19, 2009||Desai Jawahar M||Catheter For Media Injection|
|US20090105643 *||Dec 17, 2008||Apr 23, 2009||Boston Scientific Scimed, Inc.||Occlusion balloon catheter with external inflation lumen|
|US20090143779 *||Nov 30, 2007||Jun 4, 2009||Huisun Wang||Irrigated ablation catheter having parallel external flow and proximally tapered electrode|
|US20090216174 *||Feb 19, 2009||Aug 27, 2009||Mahase Nardeo||Double lumen dialysis catheter with closeable arterial distal port|
|US20100198139 *||Apr 10, 2008||Aug 5, 2010||Scott Glickman||Catheter|
|US20110186053 *||Aug 4, 2011||Pol Guillermo L||Medical Tubes for Selective Mechanical Ventilation of the Lungs|
|US20110202054 *||Aug 18, 2011||Huisun Wang||Cooled ablation catheter with reciprocating flow|
|US20140236130 *||Apr 29, 2014||Aug 21, 2014||John T. R. Wilson||Catheter|
|EP0810001A1 *||May 27, 1997||Dec 3, 1997||Engel, Konrad Dr.med.||Device for treating male and female bladder emptying disorders|
|WO1999010023A3 *||Aug 21, 1998||May 14, 1999||Vincent Decrescito||An apparatus for preventing loss of a composition during a medical procedure|
|U.S. Classification||604/99.4, 604/246, 604/256, 128/DIG.250, 27/24.1, 604/920|
|International Classification||A61F2/958, A61M25/00|
|Cooperative Classification||A61M25/0075, Y10S128/25, A61M25/1018|
|European Classification||A61M25/00T20A, A61M25/10E|