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Antithrombotic intravascular catheter reinforced with nonkinking means

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Publication number
US3618613A
US3618613A US3618613DA US3618613A US 3618613 A US3618613 A US 3618613A US 3618613D A US3618613D A US 3618613DA US 3618613 A US3618613 A US 3618613A
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Prior art keywords
tubing
spring
line
diameter
invention
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Rudolf R Schulte
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Baxter International Inc
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Heyer-Schulte Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34Component parts, details or accessories; Auxiliary operations
    • B29C41/36Feeding the material on to the mould, core or other substrate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0043Catheters; Hollow probes characterised by structural features
    • A61M25/005Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/18Processes for applying liquids or other fluent materials performed by dipping
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0009Making of catheters or other medical or surgical tubes
    • A61M25/0012Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0043Catheters; Hollow probes characterised by structural features
    • A61M25/0045Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/753Medical equipment; Accessories therefor
    • B29L2031/7542Catheters

Abstract

This invention relates to tubular catheters which are inserted through veins to enter the peritoneal cavity for medical purposes. Such tubing catheters have other medical applications such as for drainage or for introduction of medical materials, but since the tubing is of such a small diameter, it has been subject to difficulties in handling. The current invention circumvents problems caused by kinking during use by the application of a wire spring coiled around the tubing in interference fit and then coated with a silicone material to provide the surface finish required for insertion. The distal end of the catheter may be coated with an antithrombotic coating.

Description

United States Patent 72] Inventor [211 App]. No.

[22] Filed 45 Patented [73 Assignee [54] ANTITHROMBOTIC CATHETER REINFO MEANS Rudolf R. Schulte Santa Barbara, Calif. 825,656

May 19, 1969 Nov. 9, 1971 Heyer-Schulte Corporation Santa Barbara, Calif.

1 Claim, 4 Drawing Figs.

[52] U.S.C1 [51] lnt.Cl

[50] Field of Search References Cited UNITED STATES PATENTS 2,330,399 9/1943 Winder INTRAVASCULAR RCED WITH NONKINKING 3,416,531 12/1968 Edwards 128/348 3,434,869 3/1969 Davidson 128/349 3,453,194 7/1969 Bennett et a1 3/1 3,485,234 12/1969 Stevens 128/348 X FOREIGN PATENTS 1,048,288 8/1953 France 128/351 4,816 1889 Great Britain 128/349 Primary Examiner-Dalton L. Truluck Attorney-Angus & Mon

ABSTRACT: This invention relates to tubular catheters which are inserted through veins to enter the peritoneal cavity for medical purposes. Such tubing catheters have other medical applications such as for drainage or for introduction of medical materials, but since the tubing is of such a small diameter.

PATENTEB NOV 9 |97| IN VI'JN'H m. Rl/DOLF R. SCHUL TE BY L a M ATTORNEYS.

ANTITI-IROMBOTIC INTRAVASCULAR CATHETER REINFORCED WITH NONKINKING MEANS DESCRIPTION OF THE INVENTION This invention relates to surgical catheters.

An object of this invention is to provide a catheter for body implant, of small diameter, which will stand the stress of insertion through the veins or organs of a body.

Another object of the invention is to provide the tube-type catheter which can resist the stresses of insertion with kinking.

A further object of the invention is to provide tubing catheter which will not fail at the point where the tubing is applied to connecting devices.

Still another object of the invention is to provide tubing which will be self-guided into a vein and prevent kinking failure at its point of entrance. 1

Still another object of the invention is to provide a catheter which will curve over the muscles encountered during its course through the body without kinking.

A further object of the invention is to provide reinforced tubing that will be capable of penetrating muscles before entering body cavities without kinking or other mechanical failure. 7

Other objects and advantages of the instant invention will be shown by studying the figures and the description of invention, which follows:

FIG. 1 is a segment of an embodiment of the invention partially in cross section;

FIG. 2 is a side elevation of the embodiment of FIG. 1 before final coating; I

FIG. 3 is a section on line 33 of FIG. 2; and

FIG. 4 shows the embodiment of the invention of FIG. I and FIG. 2 in process of final coating.

In FIG. 1 there is shown a preferred embodiment of the invention.

The tubing is encircled by a continuous wire coil spring 11 which encircles the tubing in very close contact, preferably an interference fit, between the inside diameter of the the coil spring 11 and the outside diameter of the tubing 10. The tubing 10 for this class of article is of very small internal and external diameter, in the range of one-sixteenth inch. In order to provide the interference fit, the tubing is made with an entrance probe, as seen in FIG. 2. The entrance probe 12 may be conveniently formed on the tubing by thermoplastic means or may be a separate piece assembled to the tubing 10.

In order to make a coil spring of diameter that will be in interference fit with the tubing 10, the spring may be conveniently wound on a mandrel of larger diameter to form the coil and then elongated to provide the spacing of the coils and further to reduce the internal diameter of the coil spring 11.

A convenient length of tubing 10 with entrance probe 12 at one end is gripped by the entrance probe 12 and pulled through the coil 1 l with sufiicient force to overcome the interference fit between coil 11 and the outside diameter of tubing 10.

The tubing 10 is then suspended in air hanging from a fixture which engages entrance probe 12. A container 13 having a spout 14, the spout having an entrance hole 15, is passed over the tubing to the uppermost end so that entrance hole I5 is in a downward direction and the entrance hole 15 is so designed that it is a close fit to the outside diameter of the coil spring 11. The container 13 is then filled with a silicone material 16 which may conveniently be a silicone rubber of air-curing formulation. Silicone rubber is formulated to a viscosity which will cause it to cling to the exterior of the tubing 10 and fill the recesses between the coils of the spring 11 and fonn a coating 17 over said spring 11 and tubing 10 of the desired thickness. As the container 13 is allowed to move slowly downward over the tubing 10 and coil spring 11 assembly, the coated assembly of tubing 10 and coil spring I1 is then allowed to hang in air until the silicone material hardens to its final consistency,

One novel production method in assuring that the small diameter tubing may be pulled through in interference fit through the smaller internal diameter coil spring II is accomplished by fusing a cord or wire to the end of the tubing 10, so that the outside diameter does not have to be increased by adding a gripping means for pulling through the coil spring 11.

The distal end of the tubing, which is formed by the entrance probe 12 is coated with an antithrombotic coating, which may be of the nature of Hepacone, to prevent the formation of blood clots as the tubing is pulled through the body.

Thus it can be seen that a reinforced, small diameter tubing, which will not be subject to kinking and will not be reactive to the body fluids and is further provided with an entrance probe to permit passage through the body and a coating to prevent formation of thrombosis is provided by the instant invention, in accordance with the following claims.

I claim:

1. A surgical catheter comprising a flexible tubing made entirely of silicone rubber; an entrance probe integral with the flexible tubing and also made of silicone rubber, said entrance probe having a stepped-down outer diameter less than the outer diameter of the tubing and extending as a cylinder for a substantial distance; an antithrombotic coating of silicone rubber infused with heparin on said entrance probe; a flexible coil spring encircling and in interference fit with said tubing; and a surface coating of silicone rubber, once liquid and later cured to a solid, said coating fully covering the exposed surface of the spring and tubing and substantially filling in the interstices between convolutions of the spring.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Dated November 9, 1971 It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

In the Patent Col. 1, lines 9-12 line 13 line 14 lines 17-18 lines 27-28 line 30 lines 31-32 line 33 line 35 line 36 line 38 lines 42-43 line 43 "stand the stress. .with kinking" should be --withstand insertion and usage stresses without kinking-- "tubing" should be -a tubular-- "will not fail" should be --resist failure-- "self guided into a vein and prevent kinking failure" should be --self guiding as it enters into a vein and will resist kinking-- "shown by...which follows:" should be --evident from the following detailed description in the accompany drawings in which:--

II II a should be -the presently-- "The" should be --A-- Cancel "internal and external" after "inch' and before the period, insert -inner diameter-- J Page -2- UNITED STATES PATENT OFFICE Patent No.

November 9, 1971 Dated Inventor(s) RUDOLF R. SCHULTE It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

In the Patent (continued) 7 Col. 1, line Col.

line

line

line

line

line

lines 18-20 line line

ll l3 "made" should be --provide- "seen" should be -shown-- "conveniently" should be --integrally-- Cancel "by thermoplastic means" "be"should be --constitute-- Cancel "conveniently" after "pulled" insert --by it-- "is" should be --makes-- "to" should be --with-- "which may conveniently be" should be --such as-- "Silicone" should be --The silicone-- "As the container. tubing 10 and coil spring ll" should be --The container is moved slowly dovmward over the assembled tubing and coil spring, which causes this assembly to be coatec with a layer of silicone. After this coating occurs, the coated article-- "assuring that" should be --enabling-- "may" should be --to-- J Page -3 3,618,613 November 9, 1971 Patent No. Dated RUDOLF R. SCHULTE Inventor(s) It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

in the Patent (continued) 1 Col. 2, lines 24-25 in interference fit through" to --and fit tightly in-- lines 25-26 "accomplished fusing. .tubing 10," to --by attaching a cord or wire to the probe,

line 27 after "diameter" insert --of the tubing-- line 28 after 'll." insert --The cord or wire is passed freely through the spring, and is then used to pull the fusing through the spring.--

line 31 "which may be of the nature of Hepacone' should be --such as a coating including heparin-- line 37 change the comma to a period and cancel "in accordance with the following claims."

line 38 Add the following paragraph: --This invention is not to be limited by the embodiment shown in the drawings and described in the description, which is given by way of example and not of limitation, but only in accordance with the scope of the appended claims.--

Signed and sealed this 9th day of January 1973.

(SEAL) rttest: .1

EDWARD M. FLETCHER ,JR ROBERT GOTTSCHALK lttesting Officer Commissioner of Patents

Claims (1)

1. A surgical catheter comprising a flexible tubing made entirely of silicone rubber; an entrance probe integral with the flexible tubing and also made of silicone rubber, said entrance probe having a stepped-down outer diameter less than the outer diameter of the tubing and extending as a cylinder for a substantial distance; an antithrombotic coating of silicone rubber infused with heparin on said entrance probe; a flexible coil spring encircling and in interference fit with said tubing; and a surface coating of silicone rubber, once liquid and later cured to a solid, said coating fully covering the exposed surface of the spring and tubing and substantially filling in the interstices between convolutions of the spring.
US3618613A 1969-05-19 1969-05-19 Antithrombotic intravascular catheter reinforced with nonkinking means Expired - Lifetime US3618613A (en)

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Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757768A (en) * 1972-04-07 1973-09-11 Medical Evaluation Devices And Manipulable spring guide-catheter and tube for intravenous feeding
US3937224A (en) * 1974-04-11 1976-02-10 Uecker Ronald L Colostomy catheter
US4044765A (en) * 1975-12-17 1977-08-30 Medical Evaluation Devices And Instruments Corporation Flexible tube for intra-venous feeding
FR2340741A1 (en) * 1976-02-12 1977-09-09 Intermedicat Gmbh Tip for catheter
US4106506A (en) * 1973-12-03 1978-08-15 Koehn Wilbur R Catheter
US4360031A (en) * 1980-09-11 1982-11-23 Medtronic, Inc. Drug dispensing irrigatable electrode
US4547192A (en) * 1982-11-12 1985-10-15 Superior Plastic Products Corp. Gastroenteric feeding tube
US4634432A (en) * 1985-05-13 1987-01-06 Nuri Kocak Introducer sheath assembly
US4669456A (en) * 1983-05-04 1987-06-02 Mentor Corporation Positionable penile prosthesis
US4832681A (en) * 1986-12-10 1989-05-23 Lenck Lucien C Method and apparatus for artificial fertilization
US4931039A (en) * 1988-10-21 1990-06-05 Baxter International Inc. Ventricular catheter introducer
US4986279A (en) * 1989-03-01 1991-01-22 National-Standard Company Localization needle assembly with reinforced needle assembly
US4990143A (en) * 1990-04-09 1991-02-05 Sheridan Catheter Corporation Reinforced medico-surgical tubes
US5045071A (en) * 1985-12-17 1991-09-03 Mbo Laboratories, Inc. Double wall catheter with internal printing and embedded marker
US5059375A (en) * 1989-11-13 1991-10-22 Minnesota Mining & Manufacturing Company Apparatus and method for producing kink resistant tubing
US5125909A (en) * 1989-06-14 1992-06-30 Richard Wolf Gmbh Flexible tubular channel with external supporting ridges
US5147315A (en) * 1990-04-06 1992-09-15 C. R. Bard, Inc. Access catheter and system for use in the female reproductive system
US5154705A (en) * 1987-09-30 1992-10-13 Lake Region Manufacturing Co., Inc. Hollow lumen cable apparatus
WO1992019308A1 (en) * 1991-05-03 1992-11-12 Burnham Warren R Catheter with irregular inner and/or outer surfaces
US5238004A (en) * 1990-04-10 1993-08-24 Boston Scientific Corporation High elongation linear elastic guidewire
US5246430A (en) * 1992-03-27 1993-09-21 Taut, Inc. Reinforced cholangiogram catheter
US5279596A (en) * 1990-07-27 1994-01-18 Cordis Corporation Intravascular catheter with kink resistant tip
US5335410A (en) * 1993-03-15 1994-08-09 Burnham Warren R Method of making ultra small diameter catheters and of reinforced tubular product
WO1994027697A1 (en) * 1993-05-21 1994-12-08 Navarre Biomedical, Ltd. Drainage catheter
US5405338A (en) * 1993-08-19 1995-04-11 Cordis Corporation Helically wound catheters
US5409469A (en) * 1993-11-04 1995-04-25 Medtronic, Inc. Introducer system having kink resistant splittable sheath
US5431637A (en) * 1992-07-31 1995-07-11 Sherwood Medical Company Endotracheal suction catheter
EP0680771A1 (en) * 1994-05-06 1995-11-08 Medtronic, Inc. Insulated extendable/retractable screw-in pacing lead
US5466230A (en) * 1994-06-09 1995-11-14 Cordis Corporation Catheter sheath introducer with strain relief
US5571073A (en) * 1994-01-28 1996-11-05 Cordis Corporation Catheter flexible tip assembly
US5669383A (en) * 1994-07-28 1997-09-23 Sims Deltec, Inc. Polyimide sheath for a catheter detector and method
US5776115A (en) * 1996-01-17 1998-07-07 Becton Dickinson And Company Catheter having a gear-shaped lumen to avert the elimination of fluid flow therein
US6068622A (en) * 1998-02-10 2000-05-30 Medtronic Inc. Single piece hub/strain relief that can be injection molded over a shaft
US6210395B1 (en) 1987-09-30 2001-04-03 Lake Region Mfg., Inc. Hollow lumen cable apparatus
US6258195B1 (en) 1999-03-19 2001-07-10 Scimed Life Systems, Inc. Multi-cord fusing manufacturing process for catheter members
US6342591B1 (en) 1998-09-22 2002-01-29 Biosurface Engineering Technologies, Inc. Amphipathic coating for modulating cellular adhesion composition and methods
WO2003035160A1 (en) * 2001-10-23 2003-05-01 Novarix Ltd A device for supporting and stabilising a tubing for fluid transport and such a tubing
US6596699B2 (en) 1998-09-22 2003-07-22 Biosurface Engineering Technologies, Inc. Nucleic acid coating compositions and methods
US20030153937A1 (en) * 2002-02-07 2003-08-14 Al-Qahtani Ali Saeed Mohammed Apparatus for use in the treatment of choanal atresia
US6685696B2 (en) 1987-09-30 2004-02-03 Lake Region Manufacturing, Inc. Hollow lumen cable apparatus
US20050165366A1 (en) * 2004-01-28 2005-07-28 Brustad John R. Medical tubing having variable characteristics and method of making same
US20050273076A1 (en) * 2004-06-07 2005-12-08 C.R. Bard, Inc. Subcutaneous infusion devices
US20070215268A1 (en) * 2002-11-15 2007-09-20 Applied Medical Resources Corporation Method of making medical tubing having variable characteristics using thermal winding
EP2067465A2 (en) 2007-12-07 2009-06-10 Gerald Moss Reinforced enteral feeding catheter
US20110196315A1 (en) * 2010-02-09 2011-08-11 Medinol Ltd. Catheter tip assembled with a spring
US20120316543A1 (en) * 2010-12-28 2012-12-13 Olympus Medical Systems Corp. Treatment device for endoscope
US20130116651A1 (en) * 2010-06-30 2013-05-09 Terumo Kabushiki Kaisha Catheter and method
US8721826B2 (en) 2002-11-15 2014-05-13 Applied Medical Resources Corporation Steerable kink-resistant sheath
EP2851061A1 (en) 2013-09-18 2015-03-25 Gerald Moss Catheter and method of making the same
US9108017B2 (en) 2011-03-22 2015-08-18 Applied Medical Resources Corporation Method of making tubing have drainage holes
EP2926856A1 (en) 2014-03-31 2015-10-07 Gerald Moss Multi-lumen catheter
US9789283B2 (en) 2014-02-03 2017-10-17 Medinol Ltd. Catheter tip assembled with a spring

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US2330399A (en) * 1937-09-11 1943-09-28 American Anode Inc Distensible bag catheter
FR1048288A (en) * 1950-08-14 1953-12-21 Probes, including intratracheal probes and their method of manufacture
US3416531A (en) * 1964-01-02 1968-12-17 Edwards Miles Lowell Catheter
US3434869A (en) * 1964-11-02 1969-03-25 Dow Corning Foley catheter with silicone rubber coating
US3453194A (en) * 1966-08-03 1969-07-01 Dow Corning Anticoagulant surfaces produced by radiation grafting heparin to a silicone substrate
US3485234A (en) * 1966-04-13 1969-12-23 Cordis Corp Tubular products and method of making same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330399A (en) * 1937-09-11 1943-09-28 American Anode Inc Distensible bag catheter
FR1048288A (en) * 1950-08-14 1953-12-21 Probes, including intratracheal probes and their method of manufacture
US3416531A (en) * 1964-01-02 1968-12-17 Edwards Miles Lowell Catheter
US3434869A (en) * 1964-11-02 1969-03-25 Dow Corning Foley catheter with silicone rubber coating
US3485234A (en) * 1966-04-13 1969-12-23 Cordis Corp Tubular products and method of making same
US3453194A (en) * 1966-08-03 1969-07-01 Dow Corning Anticoagulant surfaces produced by radiation grafting heparin to a silicone substrate

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757768A (en) * 1972-04-07 1973-09-11 Medical Evaluation Devices And Manipulable spring guide-catheter and tube for intravenous feeding
US4106506A (en) * 1973-12-03 1978-08-15 Koehn Wilbur R Catheter
US3937224A (en) * 1974-04-11 1976-02-10 Uecker Ronald L Colostomy catheter
US4044765A (en) * 1975-12-17 1977-08-30 Medical Evaluation Devices And Instruments Corporation Flexible tube for intra-venous feeding
FR2340741A1 (en) * 1976-02-12 1977-09-09 Intermedicat Gmbh Tip for catheter
US4360031A (en) * 1980-09-11 1982-11-23 Medtronic, Inc. Drug dispensing irrigatable electrode
US4547192A (en) * 1982-11-12 1985-10-15 Superior Plastic Products Corp. Gastroenteric feeding tube
US4669456A (en) * 1983-05-04 1987-06-02 Mentor Corporation Positionable penile prosthesis
US4634432A (en) * 1985-05-13 1987-01-06 Nuri Kocak Introducer sheath assembly
US5045071A (en) * 1985-12-17 1991-09-03 Mbo Laboratories, Inc. Double wall catheter with internal printing and embedded marker
US4832681A (en) * 1986-12-10 1989-05-23 Lenck Lucien C Method and apparatus for artificial fertilization
US6210395B1 (en) 1987-09-30 2001-04-03 Lake Region Mfg., Inc. Hollow lumen cable apparatus
US6685696B2 (en) 1987-09-30 2004-02-03 Lake Region Manufacturing, Inc. Hollow lumen cable apparatus
US5154705A (en) * 1987-09-30 1992-10-13 Lake Region Manufacturing Co., Inc. Hollow lumen cable apparatus
US4931039A (en) * 1988-10-21 1990-06-05 Baxter International Inc. Ventricular catheter introducer
US4986279A (en) * 1989-03-01 1991-01-22 National-Standard Company Localization needle assembly with reinforced needle assembly
US5125909A (en) * 1989-06-14 1992-06-30 Richard Wolf Gmbh Flexible tubular channel with external supporting ridges
US5059375A (en) * 1989-11-13 1991-10-22 Minnesota Mining & Manufacturing Company Apparatus and method for producing kink resistant tubing
US5147315A (en) * 1990-04-06 1992-09-15 C. R. Bard, Inc. Access catheter and system for use in the female reproductive system
US4990143A (en) * 1990-04-09 1991-02-05 Sheridan Catheter Corporation Reinforced medico-surgical tubes
US5238004A (en) * 1990-04-10 1993-08-24 Boston Scientific Corporation High elongation linear elastic guidewire
US5279596A (en) * 1990-07-27 1994-01-18 Cordis Corporation Intravascular catheter with kink resistant tip
US5244619A (en) * 1991-05-03 1993-09-14 Burnham Warren R Method of making catheter with irregular inner and/or outer surfaces to reduce travelling friction
WO1992019308A1 (en) * 1991-05-03 1992-11-12 Burnham Warren R Catheter with irregular inner and/or outer surfaces
US5496292A (en) * 1991-05-03 1996-03-05 Burnham; Warren Catheter with irregular inner and/or outer surfaces to reduce travelling friction
US5246430A (en) * 1992-03-27 1993-09-21 Taut, Inc. Reinforced cholangiogram catheter
US5431637A (en) * 1992-07-31 1995-07-11 Sherwood Medical Company Endotracheal suction catheter
WO1994021420A1 (en) * 1993-03-15 1994-09-29 Burnham Warren R Method and apparatus for small catheters and reinforced tubular product
US5335410A (en) * 1993-03-15 1994-08-09 Burnham Warren R Method of making ultra small diameter catheters and of reinforced tubular product
WO1994027697A1 (en) * 1993-05-21 1994-12-08 Navarre Biomedical, Ltd. Drainage catheter
US5472435A (en) * 1993-05-21 1995-12-05 Navarre Biomedical, Ltd. Drainage catheter
US5405338A (en) * 1993-08-19 1995-04-11 Cordis Corporation Helically wound catheters
US5409469A (en) * 1993-11-04 1995-04-25 Medtronic, Inc. Introducer system having kink resistant splittable sheath
US5571073A (en) * 1994-01-28 1996-11-05 Cordis Corporation Catheter flexible tip assembly
EP0680771A1 (en) * 1994-05-06 1995-11-08 Medtronic, Inc. Insulated extendable/retractable screw-in pacing lead
US5466230A (en) * 1994-06-09 1995-11-14 Cordis Corporation Catheter sheath introducer with strain relief
US5669383A (en) * 1994-07-28 1997-09-23 Sims Deltec, Inc. Polyimide sheath for a catheter detector and method
US5941858A (en) * 1994-07-28 1999-08-24 Sims Deltec, Inc. Medical device for insertion into the body
US5776115A (en) * 1996-01-17 1998-07-07 Becton Dickinson And Company Catheter having a gear-shaped lumen to avert the elimination of fluid flow therein
US6068622A (en) * 1998-02-10 2000-05-30 Medtronic Inc. Single piece hub/strain relief that can be injection molded over a shaft
US6630580B2 (en) 1998-09-22 2003-10-07 Innerdyne, Inc. Silyl and Heparin compositions
US6342591B1 (en) 1998-09-22 2002-01-29 Biosurface Engineering Technologies, Inc. Amphipathic coating for modulating cellular adhesion composition and methods
US6596699B2 (en) 1998-09-22 2003-07-22 Biosurface Engineering Technologies, Inc. Nucleic acid coating compositions and methods
US6258195B1 (en) 1999-03-19 2001-07-10 Scimed Life Systems, Inc. Multi-cord fusing manufacturing process for catheter members
WO2003035160A1 (en) * 2001-10-23 2003-05-01 Novarix Ltd A device for supporting and stabilising a tubing for fluid transport and such a tubing
US20050011568A1 (en) * 2001-10-23 2005-01-20 Lise Kagenow Device for supporting and stabilising a tubing for fluid transport and such a tubing
US7198066B2 (en) 2001-10-23 2007-04-03 Novarix Ltd., Oxford Centre For Innovation Device for supporting and stabilising a tubing for fluid transport and such a tubing
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