US6056776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable stents and method for making same
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1998-08-17
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Granted: 2000-05-02
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Expires: 2018-08-17
Abstract
Abstract The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.
Inventors
- 👤 Lilip Lau
- 👤 William M. Hartigan
- 👤 John J. Frantzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:29
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/88; A61F2/89; A61F2/90; A61F2/91; A61F2/915; C; C23; C23F; C23F1/00; C23F1/02; C23F1/04; A61F2/848; A61F2/95; A61F2/958; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2002/91575; A61F2210/00; A61F2210/0014; A61F2210/0019; A61M; A61M25/00; A61M25/10; A61M2025/1043; A61M2025/1081; Y; Y10; Y10S; Y10S623/00; Y10S623/901; Y10S623/902; Y10S623/903; Y10S623/92; Y10S623/921; Y10T; Y10T29/00; Y10T29/49; Y10T29/49995
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
88 words
A longitudinally flexible stent for implanting in a body lumen, comprising: a plurality of cylindrical rings having an undulating pattern in the form of peaks and valleys and being adapted for expansion from a first delivery diameter to a second expanded diameter; the plurality of cylindrical rings being aligned on a common longitudinal axis and each cylindrical ring being connected to an adjacent cylindrical ring by interconnecting elements; and the interconnecting elements forming a three point connection at either the peaks or the valleys of the undulating portion.
Claim 2
Dependent Claim
88 words
A longitudinally flexible stent for implanting in a body lumen, comprising: a plurality of cylindrical rings having an undulating pattern in the form of peaks and valleys and being adapted for expansion from a first delivery diameter to a second expanded diameter; the plurality of cylindrical rings being aligned on a common longitudinal axis and each cylindrical ring being connected to an adjacent cylindrical ring by interconnecting elements; and the interconnecting elements forming a three point connection at either the peaks or the valleys of the undulating portion.
Claim 3
Dependent Claim
17 words
The stent of claim 1, wherein there are at least three interconnecting elements between adjacent cylindrical rings.
Claim 4
Dependent Claim
17 words
The stent of claim 1, wherein there are at least two interconnecting elements between adjacent cylindrical rings.
Claim 5
Dependent Claim
17 words
The stent of claim 1, wherein there is at least one interconnecting element between adjacent cylindrical rings.
Claim 6
Dependent Claim
118 words
A longitudinally flexible stent for implanting in a body lumen, comprising: a plurality of cylindrical rings having an undulating pattern in the form of peaks and valleys and being adapted for expansion from a first delivery diameter to a second expanded diameter; the plurality of cylindrical rings being aligned on a common longitudinal axis, and having a first end cylindrical ring and a second end cylindrical ring, each of the cylindrical rings being connected to an adjacent cylindrical ring; a plurality of projecting edges forming on at least the cylindrical elements between the first end cylindrical ring and the second end cylindrical ring as the stent is expanded from the first delivery diameter to the second expanded diameter.
Claim 7
Dependent Claim
118 words
A longitudinally flexible stent for implanting in a body lumen, comprising: a plurality of cylindrical rings having an undulating pattern in the form of peaks and valleys and being adapted for expansion from a first delivery diameter to a second expanded diameter; the plurality of cylindrical rings being aligned on a common longitudinal axis, and having a first end cylindrical ring and a second end cylindrical ring, each of the cylindrical rings being connected to an adjacent cylindrical ring; a plurality of projecting edges forming on at least the cylindrical elements between the first end cylindrical ring and the second end cylindrical ring as the stent is expanded from the first delivery diameter to the second expanded diameter.
Claim 8
Dependent Claim
21 words
The stent of claim 5, wherein the cylindrical rings are connected by at least three interconnecting elements between adjacent cylindrical rings.
Claim 9
Dependent Claim
21 words
The stent of claim 5, wherein the cylindrical rings are connected by at least two interconnecting elements between adjacent cylindrical rings.
Claim 10
Dependent Claim
21 words
The stent of claim 5, wherein the cylindrical rings are connected by at least one interconnecting element between adjacent cylindrical rings.
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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) | 2003-05-02 | 2003-11-01 | 2004-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-02 | 2007-11-01 | 2008-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-02 | 2011-11-01 | 2012-05-02 | $7700.00 | Window Closed / Lapsed |