Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3769981 A
Publication typeGrant
Publication date6 Nov 1973
Filing date9 Feb 1972
Priority date9 Feb 1972
Also published asCA998906A1
Publication numberUS 3769981 A, US 3769981A, US-A-3769981, US3769981 A, US3769981A
InventorsMc Whorter D
Original AssigneeKendall & Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Urinary catheter
US 3769981 A
Abstract
Catheters have proximal and distal tubular ends joined by a preferably flexible connecting portion of reduced diameter so that liquid draining through the catheter can wash the walls of the urethra. Rigidifying aids to the insertion of the catheter when flexible are described.
Images(2)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

v. United States Patent 1191 1111 3,769,981 McWhorter [4 1 Nov. 6, 1973 URINARY CATHETER 3,630,206 12/1971 Gingold 128/349 13 3,503,400 3 i970 0 th t l. I28 349 R [75] Inventor 'P Mcwhmer Aflmgto" 3,438,375 4i1969 128i349 B Hfilghlts, 3,331,371 3/1965 Rocchi etal. 128/349 B [73] Assignee: The Kendall Company, Walpole,

Mass Primary Examiner-Dalton L. Truluck {22] F] d F b 9 1972 Attorney-Rowland V. Patrick [2i] App]. No.: 224,855 [57] ABSTRACT Catheters have proximal and distal tubular ends joined by a preferably flexible connecting portion of reduced diameter so that liquid draining through the catheter [58] Fie'ld R 349 B can wash the walls of the urethra. Rigidifying aids to 128/349 350 the insertion of the catheter when flexible are described.

[56] References Cited 8 Claims, 16 Drawing Figures UNITED STATES PATENTS 3,642,004 2/l972 Osthagen et al. 128/349 R SHEET 1 UF 2 PATENTED MW 6 IBYS URINARY CATHETER I This inventionrelates to catheters and more particularly to a urinary catheter which permits draining urine to wash the walls of the urethra and thus ameliorate some of the adverse consequences, mechanical and chemical, resulting from prolonged presence of a conventional indwelling catheter in the urethra.

These consequences include excessive production of mucous and/or denudation of the urethral epithelium. The periurethral cylinder of mucous provides an excellent growth medium for bacteria and it has been shown that this is one pathway of bladder infection. The mechanical trauma can lead to direct bacterial invasion, strictures, etc.

The present invention in effect provides a device which has a hollow distal portion intended to penetrate through the sphincteral muscle to hold it open and another hollow proximal portion for channeling the urine out through the urethra entrance, but intermediate thereto there is only as much structure as is necessary to maintain a structural connection with a hollow distal portion of the catheter for insertion and removal. In effect then 'both ends of the urethra are plugged with hollow drainage tubes but in between the draining urine, after passing through the sphincter is confined and channeled by the wall of the urethra until it reaches the other hollow portion. I

In this manner, excessive mucous tends to be washed away carrying bacteria with it, the object being to so reduce the bulk of theconnecting portion of the catheter as to-expose urethra wall surfaces to flowing draining urine.

Since reduction in bulk of the connecting'portion reduces the stiffness of the catheter and thereby makes it more difficult to insert the catheter properly, means are provided to reduce the flimsiness and flexibility of the catheter for purposes of insertion. This may be done'either with the use of a removable reinforcing insertion tube or may be accomplished .with the use of inflatable strips which rigidify much in'the same manner as-inflatable splints for appendages. I

The above and other objects of the'invention will be more fully understood when taken'in connection with a description of the accompanying drawings wherein:

FIG. 1 illustrates a urinary catheter positioned within a bladder through the urethra, the drawing being broken away to indicate extent, and being partly in crosssection;

FIG. 2 is a cross-sectional view taken along thejline 2-2 of FIG. 1; v v

FIG. 3 is a similar view reduced in size and with parts broken away, to that shown in FIG. 1 with a temporary insertion tool carried in the catheter;

FIG. 4 is an enlarged cross-sectional view taken along the line 4-4 of FIG. 3;

FIG. 5 is a perspective view of another form of catheter in accordance with the invention;

FIG. 5a is a cross-sectional view taken along the line 5a-5a of FIG. 5;

FIG. 6 is a view of the catheter of FIG. 5 with a portion thereof inflated;

FIG. 6a is a cross-sectional view taken along the line 6a-6a of FIG. 6;

FIG. 7 is a perspective view of another form of catheter in accordance with the invention;

FIG. 7a is a cross-sectional view taken along the line 7a-7a, of FIG. 7;

FIG. 8 is a partial view of a catheter of FIG. 7 with a portion thereof inflated;

FIG. 8a is a cross-sectional view taken along the line 8a-8a of FIG. 8';

FIG. 9 is a view of a modified form of catheter;

FIG. 9a is a cross-sectional view taken along the line 9a9a of FIG. 9;

FIG. 10 is a view of the catheter of FIG. 9 but with certain of the parts in inflated position; and

FIG. 10a is a cross-sectional view taken along the line l0a-10a of FIG. 10.

In FIG. 1 a catheter of the invention is shown properly placed to act as an indwelling retention catheter for draining a urinary bladder, a portion of which 20 is shown in relation to its accompanying urethra 22.

The catheter can most conveniently be described as being constituted of three sections.-

The proximal section includes a hollow tube portion 24 forming a drainage canal 26 discharging through a terminal funnel portion 28. Integral therewith is a side arm 30 having a separate auxiliary lumen 32. This section terminates at an open bore end shown at 34.

The distal section includes a hollow tube portion 36 forming a main drainage canal 38 and having a pair of drainage eyes 40. An expansible and collapsible member in the form of a balloon 42 surrounds the distal section and is inflated (as shown in FIG. 1) by passage of fluid through the lumen 44 and passageway 46 through the wall of the tube portion 36.

This distal section ends at an open-bore end at 48.

The remainder of the catheter comprises a connecting section 50 of small diameter just large enough to contain the balloon inflating lumen 52 communicating on either side with the ends 32 and 44 of the lumen.

In the deviceshown in FIG. 1 therefore drainage of urine collecting in the bladder 20 proceeds through the eyes 40 into the main canal 38, passes the sphincter and escapes from the catheter at the open bore end 48 so that between that point and the open bore end 34 of the proximal section of the catheter the urine flows in contact with large circumferential wall portions of the urethra 22.

The draining urine .is then re-collected at 34 and passes out the main drainage canal 26 to the exterior of the body through the funnel 28. Only that portion of the urethra wall which is in contact with the small reduced diameter connecting section 50 is not exposed to the draining urine.

' FIG. 3 shows in reduced size a catheter having the construction shown in FIG. 1 but wherein the connecting section 50 is reinforced and the section made more rigid by insertion'through the funnel 28 and proximal j section of a stiffening tube 56 which passes into the hollow tube of the distal end portion. The tube 56 is hollow and open ended so that it too can drain urine as an indicator of when the catheter has entered the bladder. For this purpose the end of tube 56 is slit as shown at 58. In FIGS. 3 and 4 the balloon is shown inflated so that FIGS. 3 and 4 illustrate the catheter in indwelling position although the urethra and bladder parts of FIG. 1 are not shown. I

After the balloon has been inflated within the bladder, the stiffening tube of FIG. 3 is withdrawn leaving the structure as it is shown in FIG. 1 for operation as an indwelling retention catheter with the urethra wall bathing feature.

FIGS. 5 and 6 show a construction much like that shown in FIG. I except that it has two additional parts. First the connecting section 50 is covered over on one side by a collapsible wall 60 forming an elongated air pocket 61 (FIG. 6a). A second arm 62 contains a second lumen 64 which communicates through passageway 66 (FIG. 5a) with the pocket 61. The balloon inflating lumen 52a is moved over to accommodate the lumen 64.

Accordingly, before insertion the collapsible wall 60 can be inflated through the lumen 64 to the position shown in FIG. 6 to stiffen the connecting section for insertion, the retention balloon 42 after insertion can be inflated and then the wall 60 can be collapsed to the position shown in FIG. 5 to help expose the urethra walls to draining urine.

In FIGS. 7 and 8 instead of having a single collapsible wall 60, as in FIGS. 5 and 6, the connecting section 50a is centrally located and provided on opposite sides with inflatable structures formed by walls 70 and 71 thus requiring two auxiliary arms 72 and 73 for inflating both of the opposite pockets 74 and 75 through lumens 76 and 77 temporarily during insertion of the catheter.

FIGS. 9 and show a still further alternative in which the connection section 50b extends along the axis of the catheter and is surrounded by a coaxial collapsible wall 80 forming an annular pocket 81 which can be inflated and deflated through the lumen 86 discharging through the side arm 82. The wall 80 is shown deflated in FIGS. 9 and 9a and inflated in FIGS. 10 and 10a, thus changing the cross-sectional dimension of the central section of the catheter.

It will be understood that the arms 30, 62, 72, 73 and 82 may be provided with conventional clamps (not shown) for retaining inflating fluids in the balloon 42 and pockets 61, 74, 75 and 81. Also it will be understood that in FIGS. 1 and 2 the urethra 22 is shown as being generally tubular even where it is unsupported by the walls of the inserted catheter. This configuration is used for the purpose of clarity, inasmuch as in actual use the urethra wall would collapse onto or drape around the connecting section 50 of the catheter. Even in that position all portions of the urethral wall surrounding the connecting section 50 will be periodically bathed with urine since the body movements will cause shifts in the position of the connecting section with respect to the wall.

What is claimed is:

l. A urinary catheter having at its distal end a tube having a bore forming a drainage channel a drainage eye leading to said drainage channel;

an expansible and collapsible member surrounding the distal end of said tube and operating as a device for retaining said catheter against inadvertent ejection from placement with its said eye located within a urinary bladder;

the proximal end of said catheter including a tube having a bore forming a drainage channel;

the bores of said distal and said proximal tubes ending in spaced relation and a connecting member of reduced cross section relative to said tubes joining said tubes, whereby the distal tube may lie extending through the sphincteral muscle to drain urine past said muscle into contact with the walls of the uretha surrounding said connecting portion and thence into the proximal end tube forelimination from the urethra therethrough.

2. A catheter as claimed in claim I having an elongated hollow member extending parallel to said connecting member and having its distal end extending into the bore of said distal tube and its proximal end extending through and out of the bore of said proximal tube, whereby urine can drain through said hollow member to the exterior as an indicator as to when the catheter has entered the bladder,

said elongated member being removable by withdrawal out of said tubes after said catheter has been inserted into a bladder with the aid of the stiffening imparted by said hollow elongated member to said catheter.

3. A catheter as claimed in claim I wherein the connecting member is flexible and said catheter has inflatable means extending along said connecting member for temporarily increasing the crosssectional area of at least portions of said connecting member and reducing its flexibility for the purpose of inserting said catheter more readily through a urethra and means connecting said inflatable means with the proximal end of said catheter to permit said inflatable means to be deflated while maintaining said retention expansible member expanded to retain the catheter in indwelling position.

4. A catheter as claimed in claim 3 wherein said inflatable means lies wholly on one side of said connecting member.

5. A catheter as claimed in claim 3 wherein the inflat- I ing means includes a pair of inflatable members lying one on each side of said connecting member.

6. A catheter as claimed in claim 3 wherein said inflatable means includes a collapsible wall coaxially surrounding said connecting member.

7. A catheter as claimed in claim 3 having a side arm at its proximal end containing a lumen communicating through the connecting member with said inflatable means.

8. A catheter as claimed in claim 5 having two side arms at its proximal end, each containing a lumen communicating through the connecting member with one of said inflatable members

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3331371 *9 Mar 196518 Jul 1967Prosit Service CorpCatheter having internal flow valve at distal end thereof
US3438375 *18 Mar 196615 Apr 1969Kendall & CoNon-traumatic retention catheter
US3503400 *12 Jul 196731 Mar 1970Sven M OsthagenUrethral valve
US3630206 *2 Jan 197028 Dec 1971Gingold BruceBladder catheter
US3642004 *5 Jan 197015 Feb 1972Life Support Equipment CorpUrethral valve
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4227533 *3 Nov 197814 Oct 1980Bristol-Myers CompanyFlushable urinary catheter
US4337775 *24 Nov 19806 Jul 1982Irving LevineCatheter drainage and protection unit
US4432757 *9 Apr 198221 Feb 1984Davis Jr Richard CIndwelling urethral catheter
US4538621 *25 Jan 19833 Sep 1985Urotek Inc.Urodynamic catheter
US4571241 *16 Dec 198318 Feb 1986Christopher T GrahamUrinary catheter with collapsible urethral tube
US4710169 *11 Dec 19851 Dec 1987Christopher T GrahamUrinary catheter with collapsible urethral tube
US4748982 *6 Jan 19877 Jun 1988Advanced Cardiovascular Systems, Inc.Reinforced balloon dilatation catheter with slitted exchange sleeve and method
US4762129 *15 Nov 19859 Aug 1988Tassilo BonzelDilatation catheter
US4771777 *6 Jan 198720 Sep 1988Advanced Cardiovascular Systems, Inc.Perfusion type balloon dilatation catheter, apparatus and method
US4822345 *16 Mar 198818 Apr 1989Danforth John WControllable flexibility catheter
US4877031 *22 Jul 198831 Oct 1989Advanced Cardiovascular Systems, Inc.Steerable perfusion dilatation catheter
US4909785 *2 Nov 198820 Mar 1990American Medical Systems, Inc.Method for achieving unitary continence
US4909787 *11 Aug 198820 Mar 1990Danforth John WControllable flexibility catheter with eccentric stiffener
US4919651 *9 Jan 198924 Apr 1990Santa Barbara Medical Foundation ClinicCatheter having a double lumen and a balloon and method of using the same for controlled operative cholangiography
US4944745 *29 Feb 198831 Jul 1990Scimed Life Systems, Inc.Perfusion balloon catheter
US4946449 *18 Dec 19867 Aug 1990Davis Jr Richard CIndwelling urethral catheter system and method
US5040548 *24 May 199020 Aug 1991Yock Paul GAngioplasty mehtod
US5061273 *5 Jul 199029 Oct 1991Yock Paul GAngioplasty apparatus facilitating rapid exchanges
US5096454 *13 Feb 199117 Mar 1992Samples Charles RMethod of catheterization and bladder drainage
US5205822 *10 Jun 199127 Apr 1993Cordis CorporationReplaceable dilatation catheter
US5219335 *18 Dec 199115 Jun 1993Scimed Life Systems, Inc.Intravascular device such as introducer sheath or balloon catheter or the like and methods for use thereof
US5232445 *9 Oct 19913 Aug 1993Tassilo BonzelDilatation catheter
US5290232 *17 Feb 19931 Mar 1994Cordis CorporationReplaceable dilatation catheter
US5295962 *18 Dec 199222 Mar 1994Cardiovascular Dynamics, Inc.Drug delivery and dilatation catheter
US5300085 *27 Jan 19935 Apr 1994Advanced Cardiovascular Systems, Inc.Angioplasty apparatus facilitating rapid exchanges and method
US5306241 *13 Dec 199126 Apr 1994Samples Charles RMethod of catheterization on and bladder drainage
US5344402 *30 Jun 19936 Sep 1994Cardiovascular Dynamics, Inc.Low profile perfusion catheter
US5350395 *2 Nov 199227 Sep 1994Yock Paul GFor performing an arterial procedure or diagnosis
US5368566 *29 Apr 199229 Nov 1994Cardiovascular Dynamics, Inc.Delivery and temporary stent catheter having a reinforced perfusion lumen
US5409459 *24 Aug 199425 Apr 1995C. R. Bard, Inc.Windowed catheter and method of use
US5421826 *13 Jan 19946 Jun 1995Cardiovascular Dynamics, Inc.Drug delivery and dilatation catheter having a reinforced perfusion lumen
US5429620 *3 Aug 19944 Jul 1995Uroquest CorporationCalibrated disconnect joint for urethral catheter
US5451233 *9 Mar 199419 Sep 1995Yock; Paul G.Angioplasty apparatus facilitating rapid exchanges
US5489271 *29 Mar 19946 Feb 1996Boston Scientific CorporationConvertible catheter
US5496346 *25 May 19935 Mar 1996Advanced Cardiovascular Systems, Inc.Reinforced balloon dilatation catheter with slitted exchange sleeve and method
US5501227 *17 Sep 199326 Mar 1996Yock; Paul G.Angioplasty apparatus facilitating rapid exchange and method
US5522800 *16 Dec 19944 Jun 1996Cardiovascular Dynamics, Inc.Low profile perfusion catheter
US5533968 *27 May 19949 Jul 1996Advanced Cardiovascular Systems, Inc.Low profile catheter with expandable outer tubular member
US5542926 *8 Mar 19946 Aug 1996Cardiovascular Dynamics, Inc.Low profile perfusion catheter
US5562622 *20 Mar 19958 Oct 1996Contimed, Inc.Self-cleansing bladder drainage device
US5569184 *3 Aug 199529 Oct 1996Cardiovascular Dynamics, Inc.Delivery and balloon dilatation catheter and method of using
US5571089 *16 Dec 19945 Nov 1996Cardiovascular Dynamics, Inc.Drug delivery catheter
US5578009 *20 Jul 199426 Nov 1996Danforth Biomedical IncorporatedCatheter system with push rod for advancement of balloon along guidewire
US5626600 *7 Jun 19956 May 1997Advanced Cardiovascular Systems, Inc.Reinforced balloon dilatation catheter with slitted exchange sleeve and method
US5685312 *6 Jun 199511 Nov 1997Yock; Paul G.Angioplasty apparatus facilitating rapid exchanges and method
US5690642 *18 Jan 199625 Nov 1997Cook IncorporatedRapid exchange stent delivery balloon catheter
US5728067 *3 May 199617 Mar 1998C. R. Bard, Inc.Rapidly exchangeable coronary catheter
US5738654 *26 Dec 199514 Apr 1998Contimed, Inc.Self cleansing bladder drainage device
US5743875 *4 Nov 199628 Apr 1998Advanced Cardiovascular Systems, Inc.Catheter shaft with an oblong transverse cross-section
US5755685 *6 Feb 199626 May 1998Boston Scientific CorporationConvertible catheter and the like
US5769868 *7 Jun 199523 Jun 1998Yock; Paul G.Angioplasty apparatus facilitating rapid exchanges
US5868706 *17 Mar 19979 Feb 1999Advanced Cardiovascular Systems, Inc.Catheter with reinforced oblong transverse cross section
US5980486 *20 Jul 19939 Nov 1999Arterial Vascular Engineering, Inc.Rapidly exchangeable coronary catheter
US6013069 *21 Apr 199811 Jan 2000Advanced Cardiovascular Systems, Inc.Catheter shaft with an oblong transverse cross-section
US6022319 *5 Jul 19958 Feb 2000Scimed Life Systems, Inc.Intravascular device such as introducer sheath or balloon catheter or the like and methods for use thereof
US6027475 *2 Jan 199722 Feb 2000Advanced Cardiovascular Systems, Inc.Catheter shaft with an oblong transverse cross-section
US6036715 *28 May 199714 Mar 2000Yock; Paul G.Angioplasty apparatus facilitating rapid exchanges
US6066100 *11 Jun 199323 May 2000Scimed Life Systems, Inc.Intravascular device such as introducer sheath or balloon catheter or the like and methods for use thereof
US6090069 *5 Aug 199718 Jul 2000Walker; Frank J.Irrigation and drainage urinary catheter
US6093191 *28 Oct 199825 Jul 2000Srs Medical, Inc.Flow-around valve with contoured fixation balloon
US6102848 *12 Nov 199815 Aug 2000Srs Medical Systems, Inc.Flow-around valve with contoured fixation balloon and channel blocking means
US6129708 *23 Feb 199910 Oct 2000Medtronic Ave, Inc.Rapidly exchangeable coronary catheter
US6165197 *14 Dec 199826 Dec 2000Yock; Paul G.Angioplasty apparatus facilitating rapid exchanges
US630937922 Mar 199330 Oct 2001Lloyd K. WillardSheath for selective delivery of multiple intravascular devices and methods of use thereof
US65759937 Jun 199510 Jun 2003Paul G. YockAngioplasty apparatus facilitating rapid exchanges
US658565716 Jul 20011 Jul 2003Scimed Life Systems, Inc.Angioplasty apparatus facilitating rapid exchanges
US670275014 Apr 20019 Mar 2004Cardiovascular Imaging Systems, Inc.Angioplasty apparatus facilitating rapid exchanges and methods
US674319822 Jun 19991 Jun 2004Conticare Medical, Inc.Self-cleansing bladder drainage device
US709422028 Jun 200222 Aug 2006Coloplast A/SCatheter assembly including a catheter applicator
US731169827 Dec 200125 Dec 2007Coloplast A/SUrinary catheter assembly allowing for non-contaminated insertion of the catheter into a urinary canal
US750098222 Jun 200510 Mar 2009Futurematrix Interventional, Inc.Balloon dilation catheter having transition from coaxial lumens to non-coaxial multiple lumens
US751734328 Jun 200214 Apr 2009Coloplast A/SCatheter assembly
US75442015 Jul 20059 Jun 2009Futurematrix Interventional, Inc.Rapid exchange balloon dilation catheter having reinforced multi-lumen distal portion
US768233515 Oct 200423 Mar 2010Futurematrix Interventional, Inc.Non-compliant medical balloon having an integral non-woven fabric layer
US768235328 Nov 200323 Mar 2010Coloplast A/SCatheter device
US778062921 May 200724 Aug 2010Futurematrix Interventional, Inc.Non-compliant medical balloon having an integral non-woven fabric layer
US785780710 Sep 200428 Dec 2010Dajue WangIntra-urethral catheters
US791448723 Mar 200729 Mar 2011Futurematrix Interventional, Inc.Non-compliant medical balloon having braided or knitted reinforcement
US7918815 *24 Feb 20105 Apr 2011Boston Scientific Scimed, Inc.Draining bodily fluids with a stent
US792271220 Dec 200712 Apr 2011Coloplast A/SUrinary catheter assembly allowing for non-contaminated insertion of the catheter into a urinary canal
US796783029 Jul 200428 Jun 2011Cook Medical Technologies LlcSystem and method for introducing multiple medical devices
US79852356 Mar 200926 Jul 2011Bard Peripheral Vascular, Inc.Balloon dilation catheter having transition from coaxial lumens to non-coaxial multiple lumens
US79852369 Jun 200926 Jul 2011Bard Peripheral Vascular, Inc.Rapid exchange balloon dilation catheter having reinforced multi-lumen distal portion
US799810315 Dec 200816 Aug 2011Ismail Lotfy El ShafeiDevice for implantation of retrograde ventriculo-sinus shunt
US800274121 May 200723 Aug 2011Bard Peripheral Vascular, Inc.Non-compliant medical balloon having an integral woven fabric layer
US80027446 Aug 200823 Aug 2011Bard Peripheral Vascular, IncNon-compliant medical balloon
US800276613 Feb 200923 Aug 2011Coloplast A/SCatheter assembly
US806669328 Jun 200229 Nov 2011Coloplast A/SCatheter device
US810527524 Aug 201031 Jan 2012Bard Peripheral Vascular, Inc.Non-compliant medical balloon having an integral non-woven fabric layer
US820632029 Jul 200426 Jun 2012Cook Medical Technologies LlcSystem and method for introducing multiple medical devices
US82110877 Dec 20043 Jul 2012Cook Medical Technologies LlcDistal wire stop
US822135129 Jan 201017 Jul 2012Bard Peripheral Vascular, Inc.Non-compliant medical balloon having an integral non-woven fabric layer
US82362217 Aug 20097 Aug 2012Bard Peripheral Vascular, Inc.Non-compliant medical balloon
US828751927 Oct 200616 Oct 2012Smith Tech Innovations, LlcSelf-cleansing bladder drainage catheter
US829287229 Jun 200723 Oct 2012Cook Medical Technologies LlcDistal wire stop having adjustable handle
US83136017 Aug 200920 Nov 2012Bard Peripheral Vascular, Inc.Non-compliant medical balloon
US83538687 Apr 200815 Jan 2013Bard Peripheral Vascular, Inc.Medical balloon having strengthening rods
US840917117 Dec 20082 Apr 2013Hollister IncorporatedFluid drainage catheter having an external flow path
US851238920 Dec 201020 Aug 2013Cook Medical Technologies, LLCSystem and method for introducing multiple medical devices
US859156326 Sep 200526 Nov 2013Cook Medical Technologies LlcCatheter with splittable wall shaft and peel tool
US85972402 Feb 20123 Dec 2013Futurematrix Interventional, Inc.Coaxial catheter shaft having balloon attachment feature with axial fluid path
US872811016 Jan 200920 May 2014Bard Peripheral Vascular, Inc.Balloon dilation catheter shaft having end transition
US881489923 Feb 200926 Aug 2014Futurematrix Interventional, Inc.Balloon catheter pressure relief valve
US20120116491 *18 Jan 201210 May 2012Boston Scientific Scimed, Inc.Occlusion crossing device and method
CN100405995C28 Jun 200230 Jul 2008科洛普拉斯特公司A catheter device
DE3202713A1 *28 Jan 198211 Aug 1983Sachse Hans ECatheter
DE3306342A1 *23 Feb 198323 Aug 1984Sachse Hans ECatheter
EP0086573A1 *24 Jan 198324 Aug 1983The Victoria University Of ManchesterA urethral catheter
EP0186435A2 *18 Dec 19852 Jul 1986Nippon Sherwood Medical Industries LimitedBalloon tube for treating oesophageal varices
WO2003002179A2 *28 Jun 20029 Jan 2003Coloplast AsA catheter device
WO2009108243A1 *17 Dec 20083 Sep 2009Hollister IncorporatedFluid drainage catheter having an external flow path
Classifications
U.S. Classification604/102.3
International ClassificationA61M25/00
Cooperative ClassificationA61M25/0017
European ClassificationA61M25/00H
Legal Events
DateCodeEventDescription
1 Feb 1989ASAssignment
Owner name: MANUFACTURERS HANOVER TRUST COMPANY, AS AGENT
Free format text: SECURITY INTEREST;ASSIGNOR:KENDALL COMPANY, THE;REEL/FRAME:005251/0007
Effective date: 19881027