US5919225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Procedures for introducing stents and stent-grafts
Assignee: W.L. Gore and Associates Inc
•
Filing: 1997-07-14
•
Granted: 1999-07-06
•
Expires: 2017-07-14
Abstract
Abstract The present invention relates to a process for deploying a folded stent or stent-graft in a lumen. The stent or stent graft is maintained in the folded configuration by a slip line that is attached to the folded stent or stent-graft, along a longitudinal fold edge. The folded stent or stent-graft is inserted into a lumen and the slip line is axially moved along a longitudinal line to allow the folded stent or stent-graft to expand to its enlarged, deployed configuration.
Inventors
- 👤 Lilip Lau
- 👤 Charles T. Maroney
- 👤 William M. Hartigan
- 👤 Sharon Lam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:20
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: 25
Claim 1
Independent Claim
89 words
A method for introducing a self-expanding stent into a lumen comprising: providing a self-expanding stent in a longitudinally folded configuration and maintained in said folded configuration by a removable, longitudinally positioned slip line attached along a longitudinal fold line of said folded configuration; introducing said folded self-expanding stent to a selected site in a lumen; and axially withdrawing said slip line in a direction substantially aligned with a longitudinal axis of said self-expanding stent, thereby releasing said slip line to allow the stent to expand at the selected site.
Claim 2
Independent Claim
89 words
A method for introducing a self-expanding stent into a lumen comprising: providing a self-expanding stent in a longitudinally folded configuration and maintained in said folded configuration by a removable, longitudinally positioned slip line attached along a longitudinal fold line of said folded configuration; introducing said folded self-expanding stent to a selected site in a lumen; and axially withdrawing said slip line in a direction substantially aligned with a longitudinal axis of said self-expanding stent, thereby releasing said slip line to allow the stent to expand at the selected site.
Claim 3
Dependent Claim
14 words
The method of claim 1 in which the selected site is a vascular site.
Claim 4
Dependent Claim
27 words
The method of claim 1 in which the self-expanding stent further comprises loops along said fold line in the stent through which the slip line is introduced.
Claim 5
Dependent Claim
44 words
The method of claim 1 in which the removable slip line is woven into the stent at a fold line using a sack knot so to allow removal of the slip line by unweaving the sack knot through axial movement of the slip line.
Claim 6
Dependent Claim
11 words
The method of claim 1 in which the stent is metallic.
Claim 7
Dependent Claim
13 words
The method claim 1 in which the stent further comprises a super-elastic alloy.
Claim 8
Dependent Claim
14 words
The method of claim 1 in which the stent further comprises a nickel-titanium alloy.
Claim 9
Dependent Claim
26 words
The method of claim 1 where the stent further comprises a helically positioned undulating member which forms multiple turns about a longitudinal axis of said stent.
Claim 10
Dependent Claim
26 words
The method of claim 8, where said undulating member includes undulations and a flexible link passes through undulations on adjacent helical turns of said undulating member.
Claim 11
Dependent Claim
20 words
The method of claim 9 where said flexible link maintains said undulations in phased relationship between said adjacent helical turns.
Claim 12
Dependent Claim
13 words
The method of claim 1 further comprising a graft attached to the stent.
Claim 13
Dependent Claim
13 words
The method of claim 11 in which the graft is a polymeric material.
Claim 14
Dependent Claim
12 words
The method of claim 11 where the graft comprises a tubular member.
Claim 15
Dependent Claim
15 words
The method of claim 11 where the graft comprises a tubular member including radiopaque markers.
Claim 16
Dependent Claim
14 words
The method of claim 11 in which the graft comprises a polyethylene terephthalate material.
Claim 17
Dependent Claim
13 words
The method of claim 11 in which the graft comprises a polyaramid material.
Claim 18
Dependent Claim
13 words
The method of claim 11 in which the graft comprises a polyfluorocarbon material.
Claim 19
Dependent Claim
12 words
The method of claim 11 in which the graft comprises a polyurethane.
Claim 20
Independent Claim
92 words
A method for introducing a self-expanding stent into a lumen comprising: providing a self-expanding stent in a folded configuration and maintained in said folded configuration by a removable, longitudinally positioned slip line woven along a longitudinal fold line of said folded configuration using a sack knot; introducing said folded self-expanding stent to a selected site in a lumen; and axially withdrawing said slip line in a direction substantially aligned with a longitudinal axis of said self-expanding stent, thereby unweaving said slip line to allow the stent to expand at the selected site.
Claim 21
Independent Claim
92 words
A method for introducing a self-expanding stent into a lumen comprising: providing a self-expanding stent in a folded configuration and maintained in said folded configuration by a removable, longitudinally positioned slip line woven along a longitudinal fold line of said folded configuration using a sack knot; introducing said folded self-expanding stent to a selected site in a lumen; and axially withdrawing said slip line in a direction substantially aligned with a longitudinal axis of said self-expanding stent, thereby unweaving said slip line to allow the stent to expand at the selected site.
Claim 22
Independent Claim
92 words
A method for introducing a self-expanding stent-graft into a lumen comprising: providing a self-expanding stent-graft in a folded configuration and maintained in said folded configuration by a removable, longitudinally positioned slip line woven along a longitudinal fold line of said folded configuration using a sack knot; introducing said folded self-expanding stent to a selected site in a lumen; and axially withdrawing said slip line in a direction substantially aligned with a longitudinal axis of said self-expanding stent, thereby unweaving said slip line to allow the stent to expand at the selected site.
Claim 23
Independent Claim
92 words
A method for introducing a self-expanding stent-graft into a lumen comprising: providing a self-expanding stent-graft in a folded configuration and maintained in said folded configuration by a removable, longitudinally positioned slip line woven along a longitudinal fold line of said folded configuration using a sack knot; introducing said folded self-expanding stent to a selected site in a lumen; and axially withdrawing said slip line in a direction substantially aligned with a longitudinal axis of said self-expanding stent, thereby unweaving said slip line to allow the stent to expand at the selected site.
Claim 24
Dependent Claim
13 words
The method of claim 20 in which the graft comprises a polyfluorocarbon material.
Claim 25
Dependent Claim
13 words
The method of claim 21 in which the polyfluorocarbon material comprises expanded polytetrafluoroethylene.
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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) | 2002-07-05 | 2003-01-04 | 2003-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-07-05 | 2007-01-04 | 2007-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-07-05 | 2011-01-04 | 2011-07-06 | $7700.00 | Window Closed / Lapsed |