US5405377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intraluminal stent
Assignee: Lifeport Sciences LLC
•
Filing: 1992-02-21
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Granted: 1995-04-11
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Expires: 2012-02-21
Abstract
Abstract An intraluminal stent includes a continuous helix of zig-zag wire and loops which connect adjacent apices of the wire. The stent is compressible and self-expandable substantially to a pre-compressed configuration. A method of forming the stent includes bending a length of wire into a zig-zag configuration and a helix and connecting adjacent apices of the wire. A method implanting this stent includes compressing the stent radially, implanting it in a predetermined location of a body vessel, and allowing it to recoil to the configuration it had before compression.
Inventors
- 👤 Andrew H. Cragg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:58
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/82; A61F2/86; A61F2/88; A61F2/89; A61F2/90; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2002/075; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30092; A61F2002/30316; A61F2002/30329; A61F2002/30462; A61F2002/823; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2220/00; A61F2220/0025; A61F2220/0066; A61F2220/0075; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00035; A61F2310/00131
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
62 words
An intraluminal stent comprising: a predetermined length of elastic wire having a zig-zag configuration and defining a continuous helix with a plurality of hoops; a plurality of loop members for connecting adjacent apices of adjacent helix hoops; the loop members and the wire being separate members and made of different materials, the stent being compressible and self-expandable substantially to a pre-compressed configuration.
Claim 2
Dependent Claim
62 words
An intraluminal stent comprising: a predetermined length of elastic wire having a zig-zag configuration and defining a continuous helix with a plurality of hoops; a plurality of loop members for connecting adjacent apices of adjacent helix hoops; the loop members and the wire being separate members and made of different materials, the stent being compressible and self-expandable substantially to a pre-compressed configuration.
Claim 3
Dependent Claim
20 words
The stent of claim 1, wherein the loop members connect the adjacent apices of the helix hoops in abutting relation.
Claim 4
Dependent Claim
16 words
The stent of claim 1, wherein the elastic wire is a high shape memory nitinol alloy.
Claim 5
Dependent Claim
17 words
The stent of claim 1, wherein the loop members have a substantially greater flexibility than the wire.
Claim 6
Dependent Claim
63 words
An intraluminal stent comprising: a predetermined length of elastic wire having a zig-zag configuration and defining a continuous helix with a plurality of hoops; a plurality of loop members for connecting adjacent apices of adjacent helix hoops, each said loop member including a single ligature of suture material tied into a loop; the stent being compressible and self-expandable substantially to a pre-compressed configuration.
Claim 7
Dependent Claim
63 words
An intraluminal stent comprising: a predetermined length of elastic wire having a zig-zag configuration and defining a continuous helix with a plurality of hoops; a plurality of loop members for connecting adjacent apices of adjacent helix hoops, each said loop member including a single ligature of suture material tied into a loop; the stent being compressible and self-expandable substantially to a pre-compressed configuration.
Claim 8
Dependent Claim
13 words
The stent of claim 5, wherein the suture material is made of polypropylene.
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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) | 1998-04-10 | 1998-10-10 | 1999-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-10 | 2002-10-10 | 2003-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-10 | 2006-10-10 | 2007-04-11 | $7700.00 | Window Closed / Lapsed |