Patent US5876432A successfully refreshed from Google Patents.
US5876432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-expandable helical intravascular stent and stent-graft
Assignee: W.L. Gore and Associates Inc
•
Filing: 1995-03-28
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Granted: 1999-03-02
•
Expires: 2015-03-28
Abstract
Abstract A device which includes at least a tubular stent member which if formed from a helically wrapped undulating member and a coupling member which extends through undulations of adjacent turns of the helically wrapped undulating member and is movable along the undulations, the device is foldable into a lumen deployable configuration and may also include a coaxially positioned graft member.
Inventors
- 👤 Lilip Lau
- 👤 Charles Thomas Maroney
- 👤 William M. Hartigan
- 👤 Woonza Rhee
- 👤 Kimberly A. McCullough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/88; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/90; A61F2/91; A61F2/92; A61F2/89; A61F2/95; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/3008; A61F2002/30092; A61F2002/30316; A61F2002/30329; A61F2002/30462; A61F2002/9505; A61F2002/9511; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2220/00; A61F2220/0025; A61F2220/0075; A61F2230/00; A61F2230/0063; A61F2230/0073; A61F2230/0078; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
57 words
A device comprising: a tubular stent defined by a helically arranged undulating member containing multiple turns about a common longitudinal axis, said undulating member containing a plurality of open unconfining undulations each having an amplitude; and a coupling member extending through undulations of adjacent turns and movable along the undulations over a substantial portion of said amplitude.
Claim 2
Independent Claim
57 words
A device comprising: a tubular stent defined by a helically arranged undulating member containing multiple turns about a common longitudinal axis, said undulating member containing a plurality of open unconfining undulations each having an amplitude; and a coupling member extending through undulations of adjacent turns and movable along the undulations over a substantial portion of said amplitude.
Claim 3
Dependent Claim
17 words
The device of claim 1 further including a coaxially positioned, polymeric tubular graft coupled to said stent.
Claim 4
Dependent Claim
15 words
The device of claim 2, wherein said stent is formed from a self-expanding elastic material.
Claim 5
Dependent Claim
18 words
The device of claim 2, wherein said tubular graft is positioned within said tubular stent and coupled thereto.
Claim 6
Dependent Claim
11 words
The device of claim 2, wherein said graft comprises a fluoropolymer.
Claim 7
Dependent Claim
10 words
The device of claim 5, wherein said fluoropolymer comprises polytetrafluoroethylene.
Claim 8
Dependent Claim
14 words
The device of claim 2, wherein said stent has at least one flared end.
Claim 9
Dependent Claim
43 words
The device of claim 2, further including a releasable fastening member for maintaining said tubular stent and coaxial graft in a lumen insertable configuration and releasing said lumen insertable configured stent and coaxially positioned into an enlarged configuration once positioned in a lumen.
Claim 10
Dependent Claim
35 words
The device of claim 8, wherein said stent and coaxial graft have a length that remains substantially unchanged when the stent and coaxial graft are in either the lumen insertable configuration or said enlarged configuration.
Claim 11
Dependent Claim
23 words
The device of claim 2, wherein said coupling member maintains undulation of one helical turn in-phase with undulations of an adjacent helical turn.
Claim 12
Dependent Claim
12 words
The device of claim 1, wherein said undulating member comprises stainless steel.
Claim 13
Dependent Claim
14 words
The device of claim 1, wherein said undulating member comprises a cobalt chromium alloy.
Claim 14
Dependent Claim
13 words
The device of claim 1, wherein said undulating member comprises a platinum/tungsten alloy.
Claim 15
Dependent Claim
13 words
The device of claim 1, wherein said undulating member comprises a nickel-titanium alloy.
Claim 16
Dependent Claim
15 words
The device of claim 1, wherein adjacent undulations in said undulating member have different amplitudes.
Claim 17
Dependent Claim
17 words
The device of claim 1, wherein adjacent undulations in said undulating member have substantially the same amplitude.
Claim 18
Dependent Claim
14 words
The device of claim 1, wherein said undulating member is approximately sinusoidal in shape.
Claim 19
Dependent Claim
11 words
The device of claim 1, wherein said undulations are approximately U-shaped.
Claim 20
Dependent Claim
12 words
The device of claim 1, wherein said undulating member is a wire.
Claim 21
Dependent Claim
23 words
The device of claim 1, wherein apexes of undulations of one helical turn are longitudinally spaced from apexes in an adjacent helical turn.
Claim 22
Dependent Claim
36 words
The device of claim 1, further including a releasable fastening member maintaining said tubular stent in a lumen insertable configuration and releasing said lumen insertable configured stent into an enlarged configuration once positioned in a lumen.
Claim 23
Dependent Claim
29 words
The device of claim 21, wherein said stent has a length that remains substantially unchanged when the stent is in either the lumen insertable configuration or said enlarged configuration.
Claim 24
Dependent Claim
10 words
The device of claim 1, wherein said undulations are V-shaped.
Claim 25
Dependent Claim
12 words
The device of claim 1, wherein said undulations are ovaloid in shape.
Claim 26
Dependent Claim
14 words
The device of claim 1 wherein said undulating member is formed from sheet material.
Claim 27
Dependent Claim
13 words
The device of claim 1 wherein said undulating member is formed from tubing.
Claim 28
Dependent Claim
15 words
The device of claim 2, wherein said undulating member is formed from a superelastic alloy.
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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) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |