US5993483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent and method of manufacturing same
Assignee: Boston Scientific Corp
•
Filing: 1997-12-18
•
Granted: 1999-11-30
•
Expires: 2017-12-18
Abstract
Abstract A prosthetic stent with a tubular wall having local inwardly or outwardly formed elevations. Stents having such elevations have a higher mechanical stability if bend according to the curvature of the body vessels to be supported or repaired. Also a method for manufacturing a stent with such elevations is described.
Inventors
- 👤 Marc Gianotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:13
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; D; D04; D04C; D04C1/00; D04C1/06; D04C3/00; D04C3/48; A61F2/88; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2230/00; A61F2230/0002; D10; D10B; D10B2403/00; D10B2403/02; D10B2403/024; D10B2403/0241; D10B2509/00; D10B2509/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49874
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
75 words
A stent for use in a body passageway comprising a flexible self-expanding braided tubular wall comprising helically wound wires and having proximal and distal ends, wherein the wires of the tubular wall are shaped at selected locations to form at each selected location an elevation extending radially away from the tubular wall the elevations cooperating to form a helical elevation pattern having a different pitch than the helically wound wires of the braided tubular wall.
Claim 2
Dependent Claim
75 words
A stent for use in a body passageway comprising a flexible self-expanding braided tubular wall comprising helically wound wires and having proximal and distal ends, wherein the wires of the tubular wall are shaped at selected locations to form at each selected location an elevation extending radially away from the tubular wall the elevations cooperating to form a helical elevation pattern having a different pitch than the helically wound wires of the braided tubular wall.
Claim 3
Dependent Claim
14 words
The stent of claim 1 wherein the elevations extend outwardly from the tubular wall.
Claim 4
Dependent Claim
11 words
The stent of claim 1 wherein the elevations have elongated shapes.
Claim 5
Dependent Claim
12 words
The stent of claim 3 wherein the elevations have arched cross-sectional shapes.
Claim 6
Dependent Claim
25 words
The stent of claim 4 wherein the elevations have a height of approximately one to two times of a diameter of the helically wound wires.
Claim 7
Dependent Claim
15 words
The stent of claim 1 wherein: said elevations are distributed regularly over the tubular wall.
Claim 8
Dependent Claim
43 words
The stent of claim 1 wherein: said helically wound wires comprise pluralities of first wires and second wires wound in respective first and second different directions to form multiple crossing points of one of the first wires and one of the second wires.
Claim 9
Dependent Claim
16 words
The stent of claim 7 wherein: said elevations are distributed regularly over the braided tubular wall.
Claim 10
Dependent Claim
16 words
The stent of claim 7 wherein: said elevations extend radially outwardly from the braided tubular wall.
Claim 11
Dependent Claim
11 words
The stent of claim 7 wherein: said elevations have elongated shapes.
Claim 12
Dependent Claim
12 words
The stent of claim 7 wherein: said elevations have arched cross-sectional shapes.
Claim 13
Dependent Claim
32 words
The stent of claim 7 wherein: said elevations have heights in the radial direction from the braided tubular wall of approximately one to two times the diameter of the helically wound wire.
Claim 14
Dependent Claim
18 words
The stent of claim 12 wherein: each of said elevations has a continuous smoothly inclining and declining curvature.
Claim 15
Dependent Claim
15 words
The stent of claim 12 wherein: the braided tubular wall has a substantially uniform diameter.
Claim 16
Dependent Claim
26 words
The stent of claim 12 wherein: said first and second wires have braiding angles that are substantially uniform over the length of the braided tubular wall.
Claim 17
Dependent Claim
18 words
The stent of claim 15 wherein: said braiding angles are between about 100 degrees and about 120 degrees.
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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) | 2002-11-29 | 2003-05-31 | 2003-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-29 | 2007-05-31 | 2007-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-29 | 2011-05-31 | 2011-11-30 | $7700.00 | Window Closed / Lapsed |