US5476508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent with mutually interlocking filaments
Assignee: TFX Medical Ltd
•
Filing: 1994-05-26
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Granted: 1995-12-19
•
Expires: 2014-05-26
Abstract
Abstract A self-expanding stent is proposed for hollow organs for the bracing and/or for the holding open of a hollow organ. The stent comprises two bands 11 which span a tubular and self-expanding network. The network is stretched in an axial direction in a collapsed state of the lumen and, in an expanded state of the lumen, is foreshortened in an axial direction and the network comprises at least two bands 11. In accordance with the invention, each individual band 11 is fashioned from at least two filaments 13 which run parallel to each other, which are connected to each other in a point-like fashion, and which interlock at crossing regions 12.
Inventors
- 👤 Mogens Amstrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:28
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
80 words
A stent for at least one of bracing and holding open of a hollow organ comprising: a tubular self-expanding network having a first and a second band, each of the first and the second bands comprising at least two mutually parallel spaced filaments which are connected to each other at non-interlocking points of connection the filaments of the first band mutually interlocking with the filaments of the second band at crossing regions spaced apart from the non-interlocking points of connection.
Claim 2
Dependent Claim
80 words
A stent for at least one of bracing and holding open of a hollow organ comprising: a tubular self-expanding network having a first and a second band, each of the first and the second bands comprising at least two mutually parallel spaced filaments which are connected to each other at non-interlocking points of connection the filaments of the first band mutually interlocking with the filaments of the second band at crossing regions spaced apart from the non-interlocking points of connection.
Claim 3
Dependent Claim
13 words
The stent of claim 1, wherein the filaments have a rectangular cross-sectional form.
Claim 4
Dependent Claim
25 words
The stent of claim 1, wherein each filament ends at a free end of the stent and exhibits a connecting point at the free end.
Claim 5
Dependent Claim
15 words
The stent of claim 1, wherein the filaments comprise a core covered by a jacketing.
Claim 6
Dependent Claim
18 words
The stent of claim 1, wherein non-interlocking points of connection are located before and after the crossing regions.
Claim 7
Dependent Claim
14 words
The stent of claim 1, wherein the non-interlocking points of connection comprise a weldment.
Claim 8
Dependent Claim
12 words
The stent of claim 1, wherein the filaments comprise a memory material.
Claim 9
Dependent Claim
20 words
The stent of claim 1, wherein the filaments comprise a material selected from the group consisting of metal and plastic.
Claim 10
Dependent Claim
20 words
The stent of claim 1, wherein the network has an external outer surface which is adapted to effect increased friction.
Claim 11
Dependent Claim
142 words
A stent for at least one of bracing and holding open of a hollow organ comprising: a tubular self-expanding network having a first and a second band, the network having a first axial length in a collapsed state of a lumen and a second axial length shorter than the first axial length in an expanded state of the lumen, the lumen having a collapsed diameter in the collapsed state which is smaller than an expanded diameter of the lumen in the expanded state, each of the first and the second bands comprising at least two mutually parallel spaced filaments which are connected to each other at non-interlocking points of connection, the filaments of the first band mutually interlocking with the filaments of the second band at crossing regions, wherein the non-interlocking points of connection are located before and after the crossing regions.
Claim 12
Dependent Claim
142 words
A stent for at least one of bracing and holding open of a hollow organ comprising: a tubular self-expanding network having a first and a second band, the network having a first axial length in a collapsed state of a lumen and a second axial length shorter than the first axial length in an expanded state of the lumen, the lumen having a collapsed diameter in the collapsed state which is smaller than an expanded diameter of the lumen in the expanded state, each of the first and the second bands comprising at least two mutually parallel spaced filaments which are connected to each other at non-interlocking points of connection, the filaments of the first band mutually interlocking with the filaments of the second band at crossing regions, wherein the non-interlocking points of connection are located before and after the crossing regions.
Claim 13
Dependent Claim
153 words
A stent for at least one of bracing and holding open of a hollow organ comprising: a tubular self-expanding network having a first and a second band, the network having a first axial length in a collapsed state of a lumen and a second axial length shorter than the first axial length in an expanded state of the lumen, the lumen having a first diameter in the collapsed state which is smaller than a second diameter of the lumen in the expanded state, each of the first and the second bands comprising at least two mutually parallel spaced filaments which are connected to each other at non-interlocking points of connection, the filaments of the first band mutually interlocking with the filaments of the second band at crossing regions, wherein each filament ends at a free end of the stent and exhibits connecting points at the free end, before, and after the crossing regions.
Claim 14
Dependent Claim
153 words
A stent for at least one of bracing and holding open of a hollow organ comprising: a tubular self-expanding network having a first and a second band, the network having a first axial length in a collapsed state of a lumen and a second axial length shorter than the first axial length in an expanded state of the lumen, the lumen having a first diameter in the collapsed state which is smaller than a second diameter of the lumen in the expanded state, each of the first and the second bands comprising at least two mutually parallel spaced filaments which are connected to each other at non-interlocking points of connection, the filaments of the first band mutually interlocking with the filaments of the second band at crossing regions, wherein each filament ends at a free end of the stent and exhibits connecting points at the free end, before, and after the crossing regions.
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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) | 1998-12-18 | 1999-06-19 | 1999-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-18 | 2003-06-19 | 2003-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-18 | 2007-06-19 | 2007-12-19 | $7700.00 | Window Closed / Lapsed |