CA2457816A1 - Conformable balloons - Google Patents

Conformable balloons Download PDF

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Publication number
CA2457816A1
CA2457816A1 CA002457816A CA2457816A CA2457816A1 CA 2457816 A1 CA2457816 A1 CA 2457816A1 CA 002457816 A CA002457816 A CA 002457816A CA 2457816 A CA2457816 A CA 2457816A CA 2457816 A1 CA2457816 A1 CA 2457816A1
Authority
CA
Canada
Prior art keywords
balloon
body wall
rings
wall
axis
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
CA002457816A
Other languages
French (fr)
Other versions
CA2457816C (en
Inventor
Yiqun Bruce Wang
John Jianhua Chen
Lixiao Wang
Jason Todd Lenz
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 Bermuda
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 CA2457816A1 publication Critical patent/CA2457816A1/en
Application granted granted Critical
Publication of CA2457816C publication Critical patent/CA2457816C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/958—Inflatable balloons for placing stents or stent-grafts

Abstract

An inflatable medical balloon for multiple procedures, including angioplasty procedures, procedures for delivering medical devices, such as stents, and a method of making the catheter systems. The catheter system employs a balloon having a plurality of flexible portions and a combination of hard and soft portions.

Claims (42)

1. A balloon for a medical device comprising:
a longitudinal axis;
a proximal cone and a distal cone; and a body positioned between the proximal and distal cones, the body comprising a body wall, the body wall forming closed loop around the longitudinal axis and the body wall having a thickness, the body wall further comprising an inner wall and an outer wall, wherein the body wall comprises at least one hinge point around the longitudinal axis of the balloon, the at least one hinge point providing the body with increased longitudinal flexibility.
2. The balloon of claim 1, the balloon comprising a plurality of hinge points.
3. The balloon of claim 2, wherein the body wall has a wavy configuration forming a plurality of peaks and troughs, the peaks and trough forming the plurality of hinge points providing the increased longitudinal flexibility.
4. The balloon of claim 2, wherein the plurality of hinge points are wrinkles dispersed throughout the body wall.
5. The balloon of claim 2, wherein the plurality of hinge points comprise at least two circumferential channels formed in the outer wall of the body wall.
6. The balloon of claim 5, wherein the inner wall comprises at least two circumferential inward bulges corresponding with the at least two circumferential channels of the outer wall.
7. The balloon of claim 6, wherein the thickness of body wall is substantially constant along the length of the body.
8. The balloon of claim 5, wherein the circumferential channels are ground into the body wall such that the inner wall has a substantially uninterrupted contour.
9. The balloon of claim 5, wherein the circumferential channels are in a spiral configuration relative to the axis of the body.
10. The balloon of claim 5, wherein the circumferential channels are on a bias relative to the-axis of the body.
11. The balloon of claim 8, wherein the circumferential channels are in a spiral configuration relative to the axis of the body.
12. The balloon of claim 8, wherein the circumferential channels are on a bias relative to the axis of the body.
13. The balloon of claim 8, the body wall being a coextrusion such that the body wall comprises a first layer and a second layer.
14. The balloon of claim 13, wherein the first layer has separations along is length and the second layer is substantially continuous along its length.
15. The balloon of claim 2, wherein the plurality of hinge points are grooves in the body wall material.
16. The balloon of claim 15, wherein the grooves form a quilted pattern.
17. The balloon of claim 2, wherein the thickness of the body wall varies along the axis of the body forming a plurality of first portions interspersed with a plurality of second portions, the first portions being thinner than the second portions.
18. The balloon of claim 2, wherein the outer surface has an undulating contour and the inner surface has a substantially continuous contour.
19. The balloon of claim 17, wherein the body wall comprises hard material.
20. The balloon of claim 2, further comprising a stent crimped on the balloon, wherein the plurality of hinge points improve the securement of the stent on the balloon relative to a balloon without the plurality of hinge points.
21. A balloon for a medical device comprising:
a proximal cone and a distal cone;
a body positioned between the proximal and distal cones, the body comprising a body wall, the body wall forming closed loop around the longitudinal axis and the body wall having a thickness, the body wall further comprising an inner wall and an outer wall, wherein the body wall comprises a first material and a second material, the first material being harder that the second material, wherein the body wall comprises a plurality of hinge points which provide the body with increased longitudinal flexibility.
22. The balloon of claim 21, wherein the second material forms a plurality of circumferential rings interrupting the first material.
23. The balloon of claim 22, wherein the rings are in a spiral configuration relative to the axis of the body.
24. The balloon of claim 22, wherein the rings are on a bias relative to the axis of the body.
25. The balloon of claim 22, wherein the majority of the body wall is comprised of the first material and the rings are integral with the first material.
26. The balloon of claim 22, wherein the rings are not continuous.
27. The balloon of claim 21, wherein the first material forms a plurality of circumferential rings interrupting the second material.
28. The balloon of claim 27, wherein the rings are in a spiral configuration relative to the axis of the body.
29. The balloon of claim 27, wherein the rings are on a bias relative to the axis of the body.
30. The balloon of claim 27, wherein the majority of the body wall is comprised of the second material and the rings are integral with the first material.
31. The balloon of claim 27, wherein the rings are not continuous.
32. The balloon of claim 27, wherein the rings are embedded within the second material.
33. The balloon of claim 32, wherein the rings are not continuous.
34. The balloon of claim 32, wherein the outer surface of the body wall has a substantially uninterrupted contour.
35. The balloon of claim 34, wherein the rings are embedded within the second material at a depth which is less than the thickness of the body wall.
36. The balloon of claim 32, wherein the rings protrude from the outer surface of the body wall, such that the outer surface of the body wall has an interrupted contour along its axis.
37. The balloon of claim 34, wherein the rings are embedded within the second material at a depth which is less than the thickness of the body wall.
38. The balloon of claim 36, wherein the rings are not continuous.
39. The balloon of claim 27, wherein the rings are in connective contact with the outer surface of the body wall and are not embedded within the second material.
40. The balloon of claim 39, wherein the rings are not continuous.
41. The balloon of claim 39, wherein the rings are bonded to the second material.
42. The balloon of claim 21, further comprising a stent crimped on the balloon, wherein the plurality of hinge points improve the securement of the stent on the balloon relative to a balloon without the plurality of hinge points.
CA2457816A 2001-09-14 2002-08-09 Conformable balloons Expired - Fee Related CA2457816C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/952,397 2001-09-14
US09/952,397 US7004963B2 (en) 2001-09-14 2001-09-14 Conformable balloons
PCT/US2002/025339 WO2003024362A1 (en) 2001-09-14 2002-08-09 Conformable balloons

Publications (2)

Publication Number Publication Date
CA2457816A1 true CA2457816A1 (en) 2003-03-27
CA2457816C CA2457816C (en) 2010-09-21

Family

ID=25492873

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2457816A Expired - Fee Related CA2457816C (en) 2001-09-14 2002-08-09 Conformable balloons

Country Status (8)

Country Link
US (1) US7004963B2 (en)
EP (1) EP1424962B1 (en)
JP (1) JP4319541B2 (en)
AT (1) ATE455521T1 (en)
CA (1) CA2457816C (en)
DE (1) DE60235176D1 (en)
ES (1) ES2335578T3 (en)
WO (1) WO2003024362A1 (en)

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EP1424962B1 (en) 2010-01-20
US7004963B2 (en) 2006-02-28
JP4319541B2 (en) 2009-08-26
EP1424962A1 (en) 2004-06-09
ES2335578T3 (en) 2010-03-30
US20030055378A1 (en) 2003-03-20
WO2003024362A1 (en) 2003-03-27
DE60235176D1 (en) 2010-03-11
ATE455521T1 (en) 2010-02-15
JP2005502428A (en) 2005-01-27
CA2457816C (en) 2010-09-21

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