GB2130093A - Dilatation catheter - Google Patents

Dilatation catheter Download PDF

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Publication number
GB2130093A
GB2130093A GB08327439A GB8327439A GB2130093A GB 2130093 A GB2130093 A GB 2130093A GB 08327439 A GB08327439 A GB 08327439A GB 8327439 A GB8327439 A GB 8327439A GB 2130093 A GB2130093 A GB 2130093A
Authority
GB
United Kingdom
Prior art keywords
catheter
shaft
distal end
tube
inner tube
Prior art date
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.)
Granted
Application number
GB08327439A
Other versions
GB8327439D0 (en
GB2130093B (en
Inventor
Kenneth John Brooks
Michael Anthony Wilkinson
Peter Henry Hannam
Neil Adrian Whiteside
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Matburn Holdings Ltd
Original Assignee
Matburn Holdings Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB838308576A external-priority patent/GB8308576D0/en
Application filed by Matburn Holdings Ltd filed Critical Matburn Holdings Ltd
Publication of GB8327439D0 publication Critical patent/GB8327439D0/en
Publication of GB2130093A publication Critical patent/GB2130093A/en
Application granted granted Critical
Publication of GB2130093B publication Critical patent/GB2130093B/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M25/104—Balloon catheters used for angioplasty
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1075—Balloon catheters with special features or adapted for special applications having a balloon composed of several layers, e.g. by coating or embedding

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Child & Adolescent Psychology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)

Abstract

A dilatation catheter has a shaft (S) comprising a tube (1) of braided material encapsulated over a major portion of its length in an outer coating (2) of semi-rigid inelastic material. An outer coating (3) of elastic material extends over a minor portion of the length of the shaft at or near its distal end. An inner coating (4) of elastic material may be provided over the entire length of the inside of the tube (1). The distal end portion of the catheter is inflatable by pressure applied from within the shaft to form a balloon. Radio-opaque markers (5a and 5b) may be provided at each end of the inflatable portion. <IMAGE>

Description

SPECIFICATION Catheters This invention relates to dilatation catheters.
Such catheters are well known. They are commonly used for example, in angioplasty procedures to dilate blood vessels. They comprise a catheter shaft with an inflatable balloon located near the leading end of the catheter when it is inserted into the body of the patient. This end is commonly known as the distal end. This balloon is inflated in order to effect the desired dilatation of the blood vessel. When this procedure is completed, the balloon is deflated and the catheter is removed from the body. Hitherto, the balloon of such a catheter has consisted of an inflatable sleeve or bulb fitted on the outside of the shaft at or near the distal end. The balloon is inflated by the application of fluid passing from within the shaft.It is obviously desirable that the balloon does not inflate to an extent which would damage the blood vessel of the patient and it is an object of the present invention to provide a dilatation catheter with an inflatable portion or balloon which cannot expand beyond acceptable limits and which, when the inflatable portion is deflated, has a smooth surface flush with the shaft. Accordingly, the present invention provides a dilatation catheter in which a shaft of the catheter comprises a tube of braided material having an inelastic outer coating of semi-rigid material extending from a proximal end of the catheter over a major portion of the length of the shaft and also having an elastic outer coating extending over a minor portion of the length of the shaft at or near the distal end of the catheter whereby the said minor portion is inflatable.If desired, the portion of the braided tube covered by the elastic coating may have a more open form, that is to say, it has fewer picks per unit length, to improve inflation. With this arrangement, the outer surface of the catheter is smooth over its entire length and the inflatable portion can be inflated to a predetermined diameter.
For convenience of description, the inflatable portion of the catheter is, where its context so permits, hereinafter referred to as a "balloon".
The catheter of the present invention preferably includes an inner tube defining a central lumen opening at both ends of the catheter. This allows the catheter to be passed over a guide wire during insertion and provides a means of pressure monitoring and fluid injection. The annular space between the inner tube and outer shaft of the catheter forms a passage through which an inflation fluid can pass in order to inflate the balloon. The inner tube is axially displaceable with respect to the outer shaft to accommodate its movement during inflation.
Some embodiments of the invention are illustrated in the accompanying drawings of which: Figure 1 is a schematic sectional view of a distal end portion of a dilatation catheter, showing a balloon portion in a deflated condition, Figures 2 and 3 are schematic sectional views of the distal end portion of a modified catheter according to this invention, also respectively illustrating the catheter in the deflated and inflated condition, and Figure 4 is a schematic cross-sectional view through a mount attached to the proximal end of the catheter.
In the embodiment of the invention illustrated in Figure 1, dilatation catheter comprises a shaft generally designated S and composed of a tube 1 of braided material which may conveniently be a polyester fibre. A major part of the outer surface of the braided tube 1 is encapsulated within a coating 2 of a semi-rigid, inelastic material preferably a plastics material such as semi-rigid polyurethane or another semi-rigid plastics material such as polyvinylchloride (PVC) or polyethylene. The inelastic plastics coating 2 is interrupted near the distal end of the catheter and this interrupted minor portion is itself encapsulated within a coating 3 of an elastic material which may be an elastic polyurethane or another elastomeric material, such as silicone rubber.The elastic coating 3 is flush with the inelastic coating 2 so that the cross-sectional area of both the major portion and the minor portion are the same with the result that the profile or outer surface of the shaft is smooth, that is to say uniform, over its entire length, except for a tip at the distal end. The portion of the braided tube encapsulated by the elastic coating 3 preferably has a more open form, that is to say fewer picks per unit length are present than the number of picks per unit length present in the major portion of the tube 1. This makes this portion of the catheter more readily inflatable than would otherwise be the case. The portion of braided tube immediately distal to the balloon may have a less open form similar to the major portion of the braided tube to limit inflation or alternatively a rigid sleeve could be positioned at this point for the same purpose.An inner coating 4 of the same or similar elastic material as the outer coating 3 is preferably bonded to the inside of the braided tube over the entire length of the catheter. A radioopaque marker portion 5a is incorporated in the shaft at or near the junction between the two outer coatings 2 and 3. Another such marker Sb is provided near the distal end of the shaft. A lining 6 may be provided. This lining may extend the entire length of the shaft as illustrated or the portion of the shaft having the balloon coating 3 need not be lined. The material of the lining may be a fluorocarbon such as polytetrafluoroethylene (PTFE) or fluorinated ethylene propylene copolymer (FEP).
As shown in Figures 2, 3 and 4, an inner tube 7, is arranged inside the shaft S. The inner tube 7 is of a semi-rigid material such as PVC. It is coaxial with the shaft S and is axially displaceable with respect to it. This tube 7 defines a central lumen 8 having an opening 9 at its distal end. If desired a lining (not shown) corresponding to the lining 6 of the Figure 1 embodiment may be bonded to the coating 4 to reduce friction. The inner tube 7 is secured to the outer shaft S by means of a tip or plug 10 at the distal end of the catheter although, as previously stated, the tube 7 is axially displaceable with respect to the outer shaft S. As shown in Figures 2 and 3, the tip 10 tapers towards the distal end of the catheter.In addition to defining the central lumen 8, the inner tube 7 also defines an outer annular lumen 1 1 which serves as an inflation lumen through which fluid can pass to inflate the balloon portion of the catheter. The tip 10 also serves as a seal for the inflation lumen 1 The radio-opaque marker Sb is positioned at the distal extremity of the balloon.
A mount is provided at the proximal end of the catheter as shown in Figure 4. This mount comprises a rigid or semi-rigid body 13 of metal or of plastics material secured to the outer coating of the shaft S. An inner piston member 14 is located inside the body and is bonded to the outside of the inner tube 7. The piston member 14 has a central passage 8a communicating with the central lumen 8 of the inner tube 7 so that liquid may be introduced to the lumen 8 via an opening 1 5a of a luer mount 1 5 or the like at the proximal end of the passage 8a. The liquid can flow through the lumen 8 and exit through the opening 9 at the distal end and then enter the patient. The passage 8a and lumen 8 also allows pressure monitoring to be carried out during the procedure and provides a means of inserting the catheter over a guide wire.
A coil spring 16 surrounds the piston member inside the body and bears on a shoulder 17 of the piston member to urge it towards the distal end of the catheter. Means may also be provided to prevent the piston member 14 rotating with respect to the body 13. A flexible seal 18 seals the annular passage between the body 13 and the piston 14 and, therefore, the proximal end of the annular lumen 11.
A luer mount 19 or other suitable connection extends laterally from the body 13 and communicates with the interior of the body so that fluid can be passed into the outer annular lumen 1 1 of the catheter to enable the balloon portion to be inflated.
In use, the catheter may be inserted over a previously inserted guide wire into a blood vessel of a patient to be treated. The guide wire may then be removed. The balloon portion of the catheter is inflated by fluid pressure, conveniently produced by a suitable syringe. When the procedure has been completed, the fluid pressure is removed so that the balloon portion cann resume its initial shape. When the fluid pressure has been removed, the piston member 14 will move towards the distal tip 10 assisted by the coil spring 16 to displace the inner tube 7 in the same direction to assist in returning the inflatable balloon portion to its non-inflated configuration as quickly as possible. Such movement also overcomes any residual tension set in the balloon portion of the catheter.
The catheter may conveniently be produced by a method in which the tube 1 is made by braiding around a suitable former. The former is previously provided with the inner coating 4. The X-ray opaque members 5a and 5b are then positioned.
The outer coating 3 is provided and penetrates the braid and forms a bond with the inner coating 4.
The outer coating 2 is then applied to the major portion of the tube 1. The inner tube 7 and outer shaft S are secured to the piston member 14 and body 13 respectively. The distal tip 10 is then fitted.
The catheter of this invention may be modified for uses other than angioplasty procedures, but where dilatation is still required. In a modified catheter intended for general dilatation purposes, the catheter does not have an inner tube and the distal tip of the catheter is completely sealed. The proximal mount illustrated in Figure 4 is not required in this modification but a luer mount with an integral stop-cock may be provided at the proximal end of the catheter to permit inflation fluid to be supplied to the catheter.

Claims (14)

1. A dilatation catheter wherein a shaft of the catheter comprises a tube of braided material having an inelastic coating of semi-rigid material extending from the proximal end of the catheter over a major portion of the length of the shaft and also having an elastic outer coating extending over a minor portion of the length of the shaft at or near the distal end of the catheter whereby the said minor portion is inflatable.
2. A catheter as claimed in claim 1 wherein the cross-sectional area of both the major portion and the inflatable minor portion are the same whereby the profile of the catheter shaft is uniform over its entire length except for a tip at the distal end.
3. A catheter as claimed in claim 2 wherein the tip tapers towards the distal end.
4. A catheter as claimed in any preceding claim wherein an inner tube which is open at both ends of the catheter extends through the shaft thereby to define a central lumen and an outer annular lumen, means communicating with the annular lumen being provided to enable a fluid for inflating the said minor portion to be supplied to the annular lumen.
5. A catheter as claimed in claim 4 wherein the inner tube is displaceable axially with respect to the shaft.
6. A catheter as claimed in any one of the preceding claims wherein the tube of braided material is provided with an inner coating of elastic material extending the entire length of the catheter.
7. A catheter as claimed in any one of claims 1 to 6 wherein the braided material has a more open form over the portion of its length within the minor portion having the elastic outer coating.
8. A catheter according to any preceding claim wherein a radio-opaque marker is arranged between the tube of braided material and the outer coating.
9. A catheter according to any preceding claim wherein radio-opaque markers are provided at each end of the inflatable portion.
10. A catheter according to any one of claims 4 to 9 wherein a tip is secured to the outer shaft internally of the distal end thereof, the inner tube being also engaged in the tip.
1 1. A catheter according to any one of claims 4 to 10 wherein a mount is fitted at the proximal end of the shaft, the said mount comprising a body secured to the shaft; a piston member is arranged inside the body and is secured to the inner tube of the shaft, the said piston member having a passage through which liquid can pass to or from the inner tube; spring means for urging the piston member towards the distal end of the shaft; a flexible seal between the piston and the body and a connection leading through the body to the annular lumen to permit inflation fluid to be supplied to the annular lumen whereby the catheter can be inflated over the said minor portion.
12. A catheter according to claim 1 wherein the piston member is fixed against rotation with respect to the body.
13. A dilatation catheter substantially as described with reference to Figure 1 of the accompanying drawings.
14. A dilatation catheter substantially as described with reference to Figures 2-4 of the accompanying drawings.
GB08327439A 1982-10-14 1983-10-13 Dilatation catheter Expired GB2130093B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8229455 1982-10-14
GB838308576A GB8308576D0 (en) 1983-03-29 1983-03-29 Catheters

Publications (3)

Publication Number Publication Date
GB8327439D0 GB8327439D0 (en) 1983-11-16
GB2130093A true GB2130093A (en) 1984-05-31
GB2130093B GB2130093B (en) 1986-04-03

Family

ID=26284142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08327439A Expired GB2130093B (en) 1982-10-14 1983-10-13 Dilatation catheter

Country Status (9)

Country Link
AU (1) AU2014383A (en)
DE (1) DE3337258A1 (en)
DK (1) DK165672C (en)
ES (1) ES526426A0 (en)
FR (1) FR2547202B1 (en)
GB (1) GB2130093B (en)
IT (1) IT1171766B (en)
NL (1) NL8303521A (en)
SE (1) SE462949B (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186267A1 (en) * 1984-10-26 1986-07-02 Cook Incorporated Balloon catheter
GB2172205A (en) * 1985-03-12 1986-09-17 Smiths Industries Plc Dilatation catheter
WO1987000442A1 (en) * 1985-07-19 1987-01-29 A/S Meadox Surgimed A dilatation catheter or a balloon catheter assembly
US4706670A (en) * 1985-11-26 1987-11-17 Meadox Surgimed A/S Dilatation catheter
GB2233562A (en) * 1989-07-14 1991-01-16 Smiths Industries Plc Balloon dilation catheters.
USRE33569E (en) * 1986-02-28 1991-04-09 Devices For Vascular Intervention, Inc. Single lumen atherectomy catheter device
US5047045A (en) * 1989-04-13 1991-09-10 Scimed Life Systems, Inc. Multi-section coaxial angioplasty catheter
US5100381A (en) * 1989-11-13 1992-03-31 Scimed Life Systems, Inc. Angioplasty catheter
US5207700A (en) * 1988-08-08 1993-05-04 Scimed Life Systems, Inc. Polyimide balloon catheter and method of forming a balloon therefor
US5382234A (en) * 1993-04-08 1995-01-17 Scimed Life Systems, Inc. Over-the-wire balloon catheter
US5490839A (en) * 1993-09-20 1996-02-13 Scimed Life Systems, Inc. Catheter balloon with retraction coating
US5496276A (en) * 1993-09-20 1996-03-05 Scimed Life Systems, Inc. Catheter balloon with retraction coating
US5499980A (en) * 1988-08-08 1996-03-19 Scimed Life Systems, Inc. Polyimide balloon catheter and method of making same
US5538510A (en) * 1994-01-31 1996-07-23 Cordis Corporation Catheter having coextruded tubing
US5647848A (en) * 1995-06-07 1997-07-15 Meadox Medicals, Inc. High strength low compliance composite balloon for balloon catheters
US5738901A (en) * 1993-09-20 1998-04-14 Scimed Life Systems, Inc. Catheter balloon with retraction coating
US5843032A (en) * 1993-10-27 1998-12-01 Schneider (Europe) Ag Catheter with multilayer tube
GB2329841A (en) * 1997-09-30 1999-04-07 Smiths Industries Plc Medico-surgical tube with x-ray opaque marker
US5976103A (en) * 1991-09-26 1999-11-02 Vas-Cath Incorporated Dual lumen coaxial catheter
US6328710B1 (en) 1993-09-20 2001-12-11 Scimed Life Systems, Inc. Process improvements for preparing catheter balloons
US7815625B2 (en) 1998-10-23 2010-10-19 Boston Scientific Scimed, Inc. Catheter having improved bonding region
US7942849B2 (en) 1993-10-27 2011-05-17 Schneider Gmbh Catheter with multilayer tube
US8066666B2 (en) 1993-10-27 2011-11-29 Schneider (Europe) A.G. Multilayer interventional catheter
EP0953364B2 (en) † 1991-04-26 2012-02-08 Boston Scientific Corporation Co-extruded medical balloons and catheter using such balloons
US8216498B2 (en) 2008-09-10 2012-07-10 Boston Scientific Scimed, Inc. Catheter having a coextruded fluoropolymer layer
US8349237B2 (en) 2006-04-20 2013-01-08 Boston Scientific Scimed, Inc. High pressure balloon
US8708955B2 (en) 2008-06-02 2014-04-29 Loma Vista Medical, Inc. Inflatable medical devices
US9592119B2 (en) 2010-07-13 2017-03-14 C.R. Bard, Inc. Inflatable medical devices
US10188436B2 (en) 2010-11-09 2019-01-29 Loma Vista Medical, Inc. Inflatable medical devices
US10188273B2 (en) 2007-01-30 2019-01-29 Loma Vista Medical, Inc. Biological navigation device

Families Citing this family (11)

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DE3444232C2 (en) * 1984-11-30 1987-01-08 Stephan Dr. 8000 München Wächter Dilatation catheter
CH670947A5 (en) * 1986-08-30 1989-07-31 Arnold Neracher Hydraulic device eliminating organic deposits obstructing human ducts
CA1281968C (en) * 1985-12-31 1991-03-26 Arnold Neracher Hydrodynamic device for removing an organic deposit obstructing a vessel in the human body
US4669469A (en) * 1986-02-28 1987-06-02 Devices For Vascular Intervention Single lumen atherectomy catheter device
DE3800744C1 (en) * 1988-01-13 1989-05-03 Robert Dr.Med. 5090 Leverkusen De Kampmann Dilator
DE3803727C1 (en) * 1988-02-08 1989-04-13 Alfred 6050 Offenbach De Weber Dilator for the postoperative treatment of a body cavity
NO890322L (en) * 1988-02-28 1989-08-29 Inst Textil Und Faserforsch St Catheter.
ES2043289T3 (en) 1989-09-25 1993-12-16 Schneider Usa Inc THE EXTRUSION OF MULTIPLE LAYERS AS A PROCEDURE FOR MAKING ANGIOPLASTY BALLS.
US6896842B1 (en) 1993-10-01 2005-05-24 Boston Scientific Corporation Medical device balloons containing thermoplastic elastomers
EP0738168B1 (en) 1993-10-01 2004-01-21 Boston Scientific Corporation Medical device balloons containing thermoplastic elastomers
US6165166A (en) 1997-04-25 2000-12-26 Schneider (Usa) Inc. Trilayer, extruded medical tubing and medical devices incorporating such tubing

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US2499045A (en) * 1948-08-16 1950-02-28 Walker Frank Ray Rectal dilator and medicator
US3485234A (en) * 1966-04-13 1969-12-23 Cordis Corp Tubular products and method of making same
US3448739A (en) * 1966-08-22 1969-06-10 Edwards Lab Inc Double lumen diagnostic balloon catheter
US3879516A (en) * 1972-12-07 1975-04-22 Technibiotics Method of constructing a catheter
DE2352122A1 (en) * 1973-10-17 1975-04-30 Siemens Ag TUBE PROBE
JPS5239596B2 (en) * 1974-04-04 1977-10-06
US3926705A (en) * 1974-07-25 1975-12-16 Western Acadia Silicone catheter and process for manufacturing same
AT348094B (en) * 1977-02-17 1979-01-25 Hanecka Lubomir Dipl Ing BALLOON CATHETER
US4327736A (en) * 1979-11-20 1982-05-04 Kanji Inoue Balloon catheter
DE3019995A1 (en) * 1980-05-24 1981-12-03 Institute für Textil- und Faserforschung Stuttgart, 7410 Reutlingen Highly flexible thin walled catheter - has reinforcing layer of braided metal and polymer fibres
US4338942A (en) * 1980-10-20 1982-07-13 Fogarty Thomas J Dilatation catherter apparatus

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186267A1 (en) * 1984-10-26 1986-07-02 Cook Incorporated Balloon catheter
AU582792B2 (en) * 1984-10-26 1989-04-13 Cook Incorporated Balloon catheter
GB2172205A (en) * 1985-03-12 1986-09-17 Smiths Industries Plc Dilatation catheter
WO1987000442A1 (en) * 1985-07-19 1987-01-29 A/S Meadox Surgimed A dilatation catheter or a balloon catheter assembly
US4706670A (en) * 1985-11-26 1987-11-17 Meadox Surgimed A/S Dilatation catheter
USRE33569E (en) * 1986-02-28 1991-04-09 Devices For Vascular Intervention, Inc. Single lumen atherectomy catheter device
US5499980A (en) * 1988-08-08 1996-03-19 Scimed Life Systems, Inc. Polyimide balloon catheter and method of making same
US5207700A (en) * 1988-08-08 1993-05-04 Scimed Life Systems, Inc. Polyimide balloon catheter and method of forming a balloon therefor
US5047045A (en) * 1989-04-13 1991-09-10 Scimed Life Systems, Inc. Multi-section coaxial angioplasty catheter
US5370655A (en) * 1989-04-13 1994-12-06 Scimed Life Systems, Inc. Angioplasty catheter
GB2233562B (en) * 1989-07-14 1993-06-02 Smiths Industries Plc Catheters
GB2233562A (en) * 1989-07-14 1991-01-16 Smiths Industries Plc Balloon dilation catheters.
US5100381A (en) * 1989-11-13 1992-03-31 Scimed Life Systems, Inc. Angioplasty catheter
EP0953364B2 (en) † 1991-04-26 2012-02-08 Boston Scientific Corporation Co-extruded medical balloons and catheter using such balloons
US5976103A (en) * 1991-09-26 1999-11-02 Vas-Cath Incorporated Dual lumen coaxial catheter
US5382234A (en) * 1993-04-08 1995-01-17 Scimed Life Systems, Inc. Over-the-wire balloon catheter
US5738901A (en) * 1993-09-20 1998-04-14 Scimed Life Systems, Inc. Catheter balloon with retraction coating
US5496276A (en) * 1993-09-20 1996-03-05 Scimed Life Systems, Inc. Catheter balloon with retraction coating
US5490839A (en) * 1993-09-20 1996-02-13 Scimed Life Systems, Inc. Catheter balloon with retraction coating
US6328710B1 (en) 1993-09-20 2001-12-11 Scimed Life Systems, Inc. Process improvements for preparing catheter balloons
US5843032A (en) * 1993-10-27 1998-12-01 Schneider (Europe) Ag Catheter with multilayer tube
US8066666B2 (en) 1993-10-27 2011-11-29 Schneider (Europe) A.G. Multilayer interventional catheter
US7942849B2 (en) 1993-10-27 2011-05-17 Schneider Gmbh Catheter with multilayer tube
US5538510A (en) * 1994-01-31 1996-07-23 Cordis Corporation Catheter having coextruded tubing
US5820594A (en) * 1994-01-31 1998-10-13 Cordis Corporation Balloon catheter
US5824173A (en) * 1994-01-31 1998-10-20 Cordis Corporation Method for making a balloon catheter
US5647848A (en) * 1995-06-07 1997-07-15 Meadox Medicals, Inc. High strength low compliance composite balloon for balloon catheters
GB2329841A (en) * 1997-09-30 1999-04-07 Smiths Industries Plc Medico-surgical tube with x-ray opaque marker
US8636717B2 (en) 1998-10-23 2014-01-28 Boston Scientific Scimed, Inc. Catheter having improved bonding region
US7815625B2 (en) 1998-10-23 2010-10-19 Boston Scientific Scimed, Inc. Catheter having improved bonding region
US8292874B2 (en) 1998-10-23 2012-10-23 Boston Scientific Scimed, Inc. Catheter having improved bonding region
US9144666B2 (en) 2006-04-20 2015-09-29 Boston Scientific Scimed, Inc. High pressure balloon
US10099039B2 (en) 2006-04-20 2018-10-16 Boston Scientific Scimed, Inc. High pressure balloon
US8697212B2 (en) 2006-04-20 2014-04-15 Boston Scientific Scimed, Inc. High pressure balloon
US10675449B2 (en) 2006-04-20 2020-06-09 Boston Scientific Scimed, Inc. High pressure balloon
US8858855B2 (en) 2006-04-20 2014-10-14 Boston Scientific Scimed, Inc. High pressure balloon
US8349237B2 (en) 2006-04-20 2013-01-08 Boston Scientific Scimed, Inc. High pressure balloon
US9526873B2 (en) 2006-04-20 2016-12-27 Boston Scientific Scimed, Inc. High pressure balloon
US10188273B2 (en) 2007-01-30 2019-01-29 Loma Vista Medical, Inc. Biological navigation device
US9504811B2 (en) 2008-06-02 2016-11-29 Loma Vista Medical, Inc. Inflatable medical devices
US9186488B2 (en) 2008-06-02 2015-11-17 Loma Vista Medical, Inc. Method of making inflatable medical devices
US8708955B2 (en) 2008-06-02 2014-04-29 Loma Vista Medical, Inc. Inflatable medical devices
US8216498B2 (en) 2008-09-10 2012-07-10 Boston Scientific Scimed, Inc. Catheter having a coextruded fluoropolymer layer
US9592119B2 (en) 2010-07-13 2017-03-14 C.R. Bard, Inc. Inflatable medical devices
US10188436B2 (en) 2010-11-09 2019-01-29 Loma Vista Medical, Inc. Inflatable medical devices

Also Published As

Publication number Publication date
GB8327439D0 (en) 1983-11-16
DK473283D0 (en) 1983-10-13
FR2547202B1 (en) 1990-06-08
DK473283A (en) 1984-04-15
FR2547202A1 (en) 1984-12-14
DK165672B (en) 1993-01-04
IT1171766B (en) 1987-06-10
DE3337258A1 (en) 1984-04-19
ES8406207A1 (en) 1984-08-01
GB2130093B (en) 1986-04-03
DE3337258C2 (en) 1992-07-16
IT8323293A1 (en) 1985-04-13
SE8305621L (en) 1984-04-15
SE462949B (en) 1990-09-24
IT8323293A0 (en) 1983-10-13
DK165672C (en) 1993-05-24
AU2014383A (en) 1984-04-19
SE8305621D0 (en) 1983-10-13
ES526426A0 (en) 1984-08-01
NL8303521A (en) 1984-05-01

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732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941013