CA2469101A1 - Catheter having an improved balloon-to-catheter bond - Google Patents

Catheter having an improved balloon-to-catheter bond Download PDF

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Publication number
CA2469101A1
CA2469101A1 CA002469101A CA2469101A CA2469101A1 CA 2469101 A1 CA2469101 A1 CA 2469101A1 CA 002469101 A CA002469101 A CA 002469101A CA 2469101 A CA2469101 A CA 2469101A CA 2469101 A1 CA2469101 A1 CA 2469101A1
Authority
CA
Canada
Prior art keywords
tubular member
balloon
distal
balloon catheter
affixed
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
CA002469101A
Other languages
French (fr)
Other versions
CA2469101C (en
Inventor
Lixiao Wang
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.)
Boston Scientific Ltd Barbados
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of CA2469101A1 publication Critical patent/CA2469101A1/en
Application granted granted Critical
Publication of CA2469101C publication Critical patent/CA2469101C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • A61M25/0014—Connecting a tube to a hub

Abstract

A tie layer insert is disclosed to aid in bond formation between an expandable balloon and a distal portion of a catheter shaft. The tie layer insert can be a single layer applied directly to the structural surfaces, or alternatively, the tie layer may be incorporated into a preformed polymeric insert. In the latter embodiment, the polymeric insert may include several layers of polymeric material. During the manufacturing process, the preformed polymeric insert is positioned between the distal portion of the expandable balloon and the catheter shaft. The entire distal region is then processed to form a sealably bonded expandable balloon to the distal end of the catheter shaft.

Claims (22)

1. A balloon catheter assembly comprising:
a first tubular member having a proximal portion and a distal portion with a lumen extending the length therein;
a discreet length of tie layer insert disposed over a portion of the distal segment of the first tubular member; and a balloon having a proximal portion, a distal portion and an expandable region therebetween, wherein at least one of the proximal portion or the distal portion of the balloon is affixed to the discreet length of tie layer.
2. The balloon catheter assembly of claim 1, wherein a second tubular member is disposed within the lumen of the first tubular member and includes a distal portion extending distally beyond the first tubular member with the proximal portion of the balloon affixed to the distal portion of the first tubular member and the distal portion of the balloon is affixed to the distal portion of the second tubular member.
3. The balloon catheter assembly of claim 2, wherein the first tubular member is disposed within at least a portion of a second tubular member having a distal portion terminating proximal of a distal end of the first tubular member with the proximal portion of the balloon affixed to the distal portion of the second tubular member and a distal portion of the balloon affixed to the distal portion of the first tubular member.
4. A balloon catheter comprising:
a first tubular member having a lumen extending the length therein;
a second tubular member coaxially disposed within at least a portion of the first tubular member with a distal segment extending distally beyond a distal end of the first tubular member;
a tie layer insert disposed over a portion of the distal segment of the second tubular member; and a balloon having a proximal portion, a distal portion and an expandable region therebetween, the expandable region of the balloon being in fluid communication with the lumen of the first tubular member, further wherein at least a portion of the proximal portion of the balloon is affixed to the first tubular member and at least a portion of the distal portion of the balloon is affixed to the tie layer.
5. The balloon catheter of claim 4, wherein the balloon is manufactured from polyether block amide.
6. The balloon catheter of claim 5, wherein the second tubular member is manufactured from high density polyethylene.
7. The balloon catheter of claim 4, wherein the first tubular member and the second tubular member extend co-axially over substantially the entire length of the balloon catheter.
8. The balloon catheter of claim 4, wherein the material of the tie layer insert has a bonding affinity with both the first tubular member and the second tubular member.
9. The balloon catheter of claim 8, wherein the tie layer insert is manufactured from linear low density polyethylene.
10. The balloon catheter of claim 4, wherein the tie layer insert has more than one layer.
11. A balloon catheter comprising:
a first tubular member having a lumen extending the length therein;
a second tubular member coaxially disposed within at least a portion of the first tubular member with a distal segment extending distally beyond a distal end of the first tubular member;
a polymeric insert disposed over and affixed to only a portion of the distal segment of the second tubular member; and a balloon having a proximal portion, a distal portion and an expandable region therebetween, the expandable region of the balloon being in fluid communication with the lumen of the first tubular member, further wherein the proximal portion of the balloon is affixed to the first tubular member at a first attachment site and the distal portion of the balloon is affixed to the polymeric insert at a second attachment site.
12. The balloon catheter of claim 11, wherein the balloon is manufactured from polyether block amide.
13. The balloon catheter of claim 12, wherein the second tubular member is manufactured from high density polyethylene.
14. The balloon catheter of claim 11, wherein the polymeric insert is cylindrical in shape.
15. The balloon catheter of claim 14, wherein the polymeric insert comprises more than one layer.
16. The balloon catheter of claim 14, wherein the polymeric insert is manufactured from a functional polymer.
17. A balloon catheter comprising:
a first tubular member having a lumen extending the length therein;
a second tubular member coaxially disposed within at least a portion of the first tubular member with a distal segment extending distally beyond a distal end of the first tubular member;
a polymeric insert disposed over at least a portion of the distal segment of the second tubular member; and a balloon having a proximal balloon waist, a distal balloon waist and an expandable region therebetween, the balloon further comprising a polymeric material having a bonding affinity with both the first tubular member and the polymeric insert while lacking a bonding affinity with the second tubular member, further wherein the proximal balloon waist of the balloon is affixed to the first tubular member and the distal balloon waist of the balloon is affixed to the polymeric insert.
18. The balloon catheter of claim 17, wherein the balloon is manufactured from polyether block amide.
19. The balloon catheter of claim 18, wherein the second tubular member is manufactured from high density polyethylene.
20. The balloon catheter of claim 17, wherein the polymeric insert comprises more than one layer.
21. The balloon catheter of claim 20, wherein the polymeric insert comprises linear low density polyethylene.
22. A process for improved bonding between an expandable balloon and a catheter shaft, the process comprising the steps of:
providing a catheter shaft having an outer tubular member and an inner tubular member, wherein the inner tubular member has a proximal end, a distal end and a lumen extending therein, and further wherein the inner tubular member is coaxially disposed within at least a portion of the outer tubular, with a portion of the inner tubular member extending distally beyond the distal end of the outer tubular member;
providing a polymeric insert;
disposing the polymeric insert over a portion of the inner tubular member extending distally beyond the distal end of the outer tubular member;
providing an expandable balloon having a first end, a second end and an expandable region therebetween;
affixing the first end of the expandable balloon to a portion of the outer tubular member; and affixing the second end of the expandable balloon to a portion of the polymeric insert.
CA2469101A 2001-12-20 2002-09-25 Catheter having an improved balloon-to-catheter bond Expired - Fee Related CA2469101C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/027,417 US6923787B2 (en) 2001-12-20 2001-12-20 Catheter having an improved balloon-to-catheter bond
US10/027,417 2001-12-20
PCT/US2002/030404 WO2003053508A1 (en) 2001-12-20 2002-09-25 Catheter having an improved balloon-to-catheter bond

Publications (2)

Publication Number Publication Date
CA2469101A1 true CA2469101A1 (en) 2003-07-03
CA2469101C CA2469101C (en) 2011-09-13

Family

ID=21837624

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2469101A Expired - Fee Related CA2469101C (en) 2001-12-20 2002-09-25 Catheter having an improved balloon-to-catheter bond

Country Status (8)

Country Link
US (3) US6923787B2 (en)
EP (2) EP2314341B1 (en)
JP (1) JP4808379B2 (en)
AT (1) ATE491494T1 (en)
AU (1) AU2002327718A1 (en)
CA (1) CA2469101C (en)
DE (1) DE60238638D1 (en)
WO (1) WO2003053508A1 (en)

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Also Published As

Publication number Publication date
DE60238638D1 (en) 2011-01-27
AU2002327718A1 (en) 2003-07-09
JP4808379B2 (en) 2011-11-02
EP2314341A1 (en) 2011-04-27
US20030120207A1 (en) 2003-06-26
US6923787B2 (en) 2005-08-02
EP1461110B1 (en) 2010-12-15
CA2469101C (en) 2011-09-13
US7048713B2 (en) 2006-05-23
US20050070846A1 (en) 2005-03-31
US20110172599A1 (en) 2011-07-14
EP1461110A1 (en) 2004-09-29
US8449497B2 (en) 2013-05-28
WO2003053508A1 (en) 2003-07-03
ATE491494T1 (en) 2011-01-15
JP2005512694A (en) 2005-05-12
EP2314341B1 (en) 2014-07-02

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