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US6361637B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making a kink resistant stent-graft

Assignee: W.L. Gore and Associates Inc
•
Filing: 1999-08-13
•
Granted: 2002-03-26
•
Expires: 2019-08-13
📄 Original PDF 🌐 Google Patents

Abstract

Abstract A stent-graft including a stent member having an inner surface and an outer surface, a generally tubular graft member and a coupling member that couples the stent member to the graft member. The coupling member, which is the preferred embodiment is in the form of a ribbon, covers only a portion of the inner or outer surface of the stent member and secures the stent member and graft member to one another. Alternatively, the coupling member can be to described as interconnecting less than entirely the inner or outer surface of the graft member to the stent member. With this construction, regions of the stent member do not interfere with the coupling member. Shear stresses between the stent member and the coupling member and the risk of tearing the graft or coupling member or delamination therebetween may be reduced as compared to a fully enveloped stent member. This construction also provides improved flexibility and kink resistance.

Inventors

  • 👤 Gerald Ray Martin
  • 👤 Lilip Lau
  • 👤 Scott N. Stonebrook
  • 👤 Sharon Lam
  • 👤 Troy Thornton

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 00:21
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/844; A61F2/86; A61F2/88; A61F2/95; A61F2/89; A61F2/90; A61F2002/075; A61F2002/9505; A61F2002/9511; A61F2/962; A61F2/966; A61F2002/9665; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2220/00; A61F2220/0025; A61F2220/0075; A61F2220/0091; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0041; A61F2230/006; A61F2230/0063; A61F2230/0073; A61F2230/0078; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 75 words
A process for making a stent graft comprising: (a) placing a graft member around a mandrel; (b) positioning an undulating stent member having an inner surface and an outer surface around said graft member; and (c securing said stent member to said graft member with a ribbon having multiple spaced apart strips, which ribbon is adhered to at least one of the inner and outer surfaces of said stent member, to form a stent-graft assembly.
Claim 2
Dependent Claim 75 words
A process for making a stent graft comprising: (a) placing a graft member around a mandrel; (b) positioning an undulating stent member having an inner surface and an outer surface around said graft member; and (c securing said stent member to said graft member with a ribbon having multiple spaced apart strips, which ribbon is adhered to at least one of the inner and outer surfaces of said stent member, to form a stent-graft assembly.
Claim 3
Dependent Claim 23 words
The process according to claim 1 further comprising the step of: (a1) prior to step (a), placing a cushioning layer around the mandrel.
Claim 4
Dependent Claim 39 words
The process according to claim 1 , wherein said securing step comprises helically wrapping the ribbon around the stent member whereby adjacent turns of the helically wrapper ribbon are spaced from one another and form said spaced apart strips.
Claim 5
Dependent Claim 32 words
The process according to claim 2 , wherein said securing step comprises helically wrapping the ribbon around the stent whereby adjacent turns of the helically wrapper ribbon are spaced from one another.
Claim 6
Dependent Claim 19 words
The process according to claim 2 wherein the ribbon is bonded to an outer surface of the graft member.
Claim 7
Dependent Claim 26 words
The process according to claim 1 further comprising the step of: (d) placing a sheath around the assembly of step (c) to form a compressed assembly.
Claim 8
Dependent Claim 26 words
The process according to claim 6 further comprising the step of: (e) heating the assembly of step (d) to adhere the ribbon to the graft member.
Claim 9
Dependent Claim 36 words
The process according to claim 4 further comprising: (d) placing a tubular sheath having a longitudinal slit around the assembly of step (c); and (e) helically wrapping a film around the sheath to compress the assembly.
Claim 10
Dependent Claim 16 words
The processing according to claim 6 wherein the sheath includes a helical wrapping of PTFE film.
Claim 11
Dependent Claim 19 words
The stent-graft of claim 6 wherein one side of said ribbon has a coating of fluorinated ethylene propylene polymer.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2005-03-25 2005-09-24 2006-03-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2009-03-25 2009-09-24 2010-03-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2013-03-25 2013-09-24 2014-03-26 $7700.00 Window Closed / Lapsed

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