US6511504B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable stents and method for making same
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 2000-11-16
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Granted: 2003-01-28
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Expires: 2020-11-16
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
2026-11-03 02:29
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: 3
Claim 1
Independent Claim
61 words
A method of forming a stent, comprising: providing a plurality of cylindrical elements aligned along a common longitudinal axis, the cylindrical elements having a plurality of peaks; forming the cylindrical elements from tubing; and connecting each cylindrical element to one or more adjacent cylindrical elements to form the stent, wherein welding is used in the process of connecting adjacent cylindrical elements.
Claim 2
Independent Claim
61 words
A method of forming a stent, comprising: providing a plurality of cylindrical elements aligned along a common longitudinal axis, the cylindrical elements having a plurality of peaks; forming the cylindrical elements from tubing; and connecting each cylindrical element to one or more adjacent cylindrical elements to form the stent, wherein welding is used in the process of connecting adjacent cylindrical elements.
Claim 3
Dependent Claim
38 words
The method of claim 1 , wherein prior to welding, at least some of the peaks of one cylindrical element are positioned out of phase with corresponding at least some of the peaks of an adjacent cylindrical element.
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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) | 2006-01-27 | 2006-07-29 | 2007-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-01-27 | 2010-07-29 | 2011-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-01-27 | 2014-07-29 | 2015-01-28 | $7700.00 | Window Closed / Lapsed |