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Patent US6596022B2 successfully refreshed from Google Patents.
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US6596022B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Expandable stents and method for making same

Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 2001-02-08
•
Granted: 2003-07-22
•
Expires: 2021-02-08
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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 2026-10-31 16:09
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: 6
Claim 1
Independent Claim 91 words
A longitudinally flexible stent, comprising: a plurality of adjacent cylindrical elements each having a circumference extending around a longitudinal stent axis; the cylindrical elements having an undulating component, at least some of the undulating components having a transverse cross-section defined by a first height and a first width; a plurality of interconnecting members extending between and attaching the adjacent cylindrical elements, at least some of the interconnecting members having a transverse cross-section defined by a second height and a second width; and the second width being less than the first width.
Claim 2
Dependent Claim 91 words
A longitudinally flexible stent, comprising: a plurality of adjacent cylindrical elements each having a circumference extending around a longitudinal stent axis; the cylindrical elements having an undulating component, at least some of the undulating components having a transverse cross-section defined by a first height and a first width; a plurality of interconnecting members extending between and attaching the adjacent cylindrical elements, at least some of the interconnecting members having a transverse cross-section defined by a second height and a second width; and the second width being less than the first width.
Claim 3
Dependent Claim 36 words
The stent of claim 1 , wherein the cross-section of the at least some of the undulating components has a ratio of the first height to the first width in the range of 2:1 to 0.5:1.
Claim 4
Dependent Claim 36 words
The stent of claim 1 , wherein the cross-section of the at least some of the interconnecting members has a ratio of the second height to the second width in the range of 2:1 to 0.5:1.
Claim 5
Dependent Claim 20 words
The stent of claim 1 , wherein the second width is at least half as wide as the first width.
Claim 6
Dependent Claim 17 words
The stent of claim 1 , wherein at least some of the interconnecting members are weld connections.

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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) 2006-07-21 2007-01-20 2007-07-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2010-07-21 2011-01-20 2011-07-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2014-07-21 2015-01-20 2015-07-22 $7700.00 Window Closed / Lapsed

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