US6066167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable stents
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 1998-05-26
•
Granted: 2000-05-23
•
Expires: 2018-05-26
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
2026-10-22 23:53
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
148 words
A longitudinally flexible stent for implanting in a body lumen, comprising; a first cylindrically shaped element, a second cylindrically shaped element, a third cylindrically shaped element, up to an Nth cylindrically shaped element, the cylindrically shaped elements being generally independently expandable in the radial direction and generally aligned on a common longitudinal axis; other than the first and the Nth cylindrically shaped elements, each of the cylindrically shaped elements has two adjacent cylindrically shaped elements spaced in opposite axial directions; each of the cylindrically shaped elements having an undulating pattern of peaks and valleys, the undulating pattern of each of the cylindrically shape elements being out of phase with the undulating pattern of each of the adjacent cylindrically shaped elements; and each of the cylindrically shaped elements being interconnected to one of the adjacent cylindrically shaped elements so that the cylindrically shaped elements form a longitudinally flexible stent.
Claim 2
Dependent Claim
148 words
A longitudinally flexible stent for implanting in a body lumen, comprising; a first cylindrically shaped element, a second cylindrically shaped element, a third cylindrically shaped element, up to an Nth cylindrically shaped element, the cylindrically shaped elements being generally independently expandable in the radial direction and generally aligned on a common longitudinal axis; other than the first and the Nth cylindrically shaped elements, each of the cylindrically shaped elements has two adjacent cylindrically shaped elements spaced in opposite axial directions; each of the cylindrically shaped elements having an undulating pattern of peaks and valleys, the undulating pattern of each of the cylindrically shape elements being out of phase with the undulating pattern of each of the adjacent cylindrically shaped elements; and each of the cylindrically shaped elements being interconnected to one of the adjacent cylindrically shaped elements so that the cylindrically shaped elements form a longitudinally flexible stent.
Claim 3
Dependent Claim
27 words
The stent of claim 1, wherein the distance between adjacent cylindrically shaped elements is less than the width of either a single peak or a single valley.
Claim 4
Dependent Claim
20 words
The stent of claim 1, wherein each of the cylindrically shaped elements includes at least three peaks and three valleys.
Claim 5
Dependent Claim
15 words
The stent of claim 1, wherein the peaks and valleys have a substantially U-shaped configuration.
Claim 6
Dependent Claim
121 words
A longitudinally flexible stent for implanting in a body lumen, comprising; a first cylindrically shaped element, a second cylindrically shaped element, a third cylindrically shaped element, up to an Nth cylindrically shaped element, the cylindrically shaped elements being generally independently expandable in the radial direction and generally aligned on a common longitudinal axis; each of the cylindrically shaped elements having an undulating pattern of peaks and valleys, the undulating pattern of each of the cylindrically shaped elements being out of phase with the undulating pattern of each of the adjacent cylindrically shaped elements; and each of the cylindrically shaped elements being interconnected to one of the adjacent cylindrically shaped elements so that the cylindrically shaped elements form a longitudinally flexible stent.
Claim 7
Dependent Claim
121 words
A longitudinally flexible stent for implanting in a body lumen, comprising; a first cylindrically shaped element, a second cylindrically shaped element, a third cylindrically shaped element, up to an Nth cylindrically shaped element, the cylindrically shaped elements being generally independently expandable in the radial direction and generally aligned on a common longitudinal axis; each of the cylindrically shaped elements having an undulating pattern of peaks and valleys, the undulating pattern of each of the cylindrically shaped elements being out of phase with the undulating pattern of each of the adjacent cylindrically shaped elements; and each of the cylindrically shaped elements being interconnected to one of the adjacent cylindrically shaped elements so that the cylindrically shaped elements form a longitudinally flexible stent.
Claim 8
Dependent Claim
27 words
The stent of claim 5, wherein the distance between adjacent cylindrically shaped elements is less than the width of either a single peak or a single valley.
Claim 9
Dependent Claim
20 words
The stent of claim 5, wherein each of the cylindrically shaped elements includes at least three peaks and three valleys.
Claim 10
Dependent Claim
15 words
The stent of claim 5, wherein the peaks and valleys have a substantially U-shaped configuration.
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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) | 2003-05-23 | 2003-11-22 | 2004-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-23 | 2007-11-22 | 2008-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-23 | 2011-11-22 | 2012-05-23 | $7700.00 | Window Closed / Lapsed |