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US6613072B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Procedures for introducing stents and stent-grafts

Assignee: W.L. Gore and Associates Inc
•
Filing: 1997-07-18
•
Granted: 2003-09-02
•
Expires: 2017-07-18
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Abstract

Abstract This invention is a medical device and a method of using it. The device is a foldable stent or stent-graft which may be percutaneously delivered with (or on) a catheter, typically an endovascular catheter, to a body cavity or lumen and then expanded. The stent's configuration allows it to be folded or otherwise compressed to a very small diameter prior to deployment without changing the length of the stent. The deployment procedures may involve the use of an outer sleeve to maintain the stent or stent-graft at a reduced diameter or may involve one or more external or internal “slip-lines” or “tether wires” to hold and then to release the device. A removal slip line for holding the stent in the deployable configuration can be woven along longitudinal fold line using the sack knot.

Inventors

  • 👤 Lilip Lau
  • 👤 Charles T. Maroney
  • 👤 William M. Hartigan
  • 👤 Sharon Lam

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 10:43
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/88; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/844; A61F2/90; A61F2/91; A61F2/915; A61F2/92; A61F2/89; A61F2/95; A61F2002/061; A61F2002/072; A61F2002/075; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/3008; A61F2002/30092; A61F2002/30316; A61F2002/30329; A61F2002/30462; A61F2002/828; A61F2002/91508; A61F2002/91516; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2002/91575; A61F2002/9505; A61F2002/9511; A61F2/962; A61F2/966; A61F2002/9665; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2220/00; A61F2220/0025; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0039; A61F2230/0041; A61F2230/006; A61F2230/0063; A61F2230/0073; A61F2230/0078; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00029; A61F2310/00035; A61F2310/00137; A61F2310/00149

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 70 words
A device comprising: a self-expanding stent having a longitudinal axis, said stent having a deployable configuration and an enlarged deployed configuration; and a removable slip line for holding said stent in the deployable configuration, wherein said removable slip line is woven into said stent along a longitudinal fold line of said stent using a sack knot so as to allow enlargement of said stent through movement of said slip line.
Claim 2
Independent Claim 70 words
A device comprising: a self-expanding stent having a longitudinal axis, said stent having a deployable configuration and an enlarged deployed configuration; and a removable slip line for holding said stent in the deployable configuration, wherein said removable slip line is woven into said stent along a longitudinal fold line of said stent using a sack knot so as to allow enlargement of said stent through movement of said slip line.
Claim 3
Dependent Claim 23 words
The device of claim 1 in which the self-expanding stent comprises loops along said fold line through which the slip line is introduced.
Claim 4
Dependent Claim 13 words
The device of claim 1 in which the stent comprises a super-elastic alloy.
Claim 5
Dependent Claim 13 words
The device of claim 1 in which the stent comprises a nickel-titanium alloy.
Claim 6
Dependent Claim 18 words
The device of claim 1 wherein the stent comprises at least one helically positioned member having undulating elements.
Claim 7
Dependent Claim 13 words
The device of claim 1 further comprising a graft attached to the stent.
Claim 8
Dependent Claim 13 words
The device of claim 6 in which the graft comprises a polymeric material.
Claim 9
Dependent Claim 12 words
The device of claim 6 wherein the graft additionally comprises reinforcing fibers.
Claim 10
Dependent Claim 12 words
The device of claim 6 wherein the graft additionally comprises radio-opaque markers.
Claim 11
Dependent Claim 13 words
The device of claim 7 in which the polymeric material comprises a fluoropolymer.
Claim 12
Dependent Claim 14 words
The device of claim 7 in which the polymeric material comprises a polyester terephthalate.
Claim 13
Dependent Claim 13 words
The device of claim 7 in which the polymeric material comprises a polyurethane.
Claim 14
Dependent Claim 11 words
The device of claim 10 in which the fluoropolymer comprises polytetrafluoroethylene.
Claim 15
Dependent Claim 11 words
The device of claim 13 in which the polytetrafluoroethylene is expanded.

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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) 2006-09-01 2007-03-03 2007-09-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2010-09-01 2011-03-03 2011-09-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2014-09-01 2015-03-03 2015-09-02 $7700.00 Window Closed / Lapsed

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