US7147661B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radially expandable stent
Assignee: Boston Scientific Corp
•
Filing: 2001-12-20
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Granted: 2006-12-12
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Expires: 2021-12-20
Abstract
Abstract This invention is a system for the treatment of body passageways; in particular, vessels with vascular disease. The system includes an endovascular graft with a low-profile delivery configuration and a deployed configuration in which it conforms to the morphology of the vessel or body passageway to be treated as well as various connector members and stents. The graft is made from an inflatable graft body section and may be bifurcated. One or more inflatable cuffs may be disposed at either end of the graft body section. At least one inflatable channel is disposed between and in fluid communication with the inflatable cuffs.
Inventors
- 👤 Michael V. Chobotov
- 👤 Brian Glynn
- 👤 Stuart Kari
- 👤 Maurice Marthaler
- 👤 Robert Whirley
- 👤 Isaac Zacharias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:16
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/844; A61F2/86; A61F2/89; A61F2/90; A61F2/91; A61F2/915; A61F2/95; A61F2/958; A61F2/9517; A61F2/954; A61F2002/065; A61F2002/072; A61F2002/075; A61F2002/825; A61F2/848; A61F2002/8486; A61F2002/91508; A61F2002/91516; A61F2002/9155; A61F2002/91558; A61F2002/91583; A61F2002/9505; A61F2002/9511; A61F2220/00; A61F2220/0025; A61F2220/005; A61F2220/0058; A61F2250/00; A61F2250/0003; A61F2250/0014; A61F2250/0036; A61M; A61M25/00; A61M25/01; A61M2025/0177
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
124 words
A radially expandable stent comprising: a first portion that comprises a serpentine ring that comprises 2n interconnected struts, wherein the interconnected struts define n proximal apices and n distal apices; a second portion that comprises a serpentine ring that comprises n interconnected struts, wherein the interconnected struts define n/2 proximal apices and n/2 distal apices, wherein n/2 of the n proximal apices of the first portion are integral with the n/2 distal apices of the second portion; a barb integrally formed on every other strut in the second portion; a tuck pad integrally formed in the struts in the second portion that are adjacent the struts that comprise the barb; and connector elements integrally formed with the n distal apices of the first portion.
Claim 2
Dependent Claim
124 words
A radially expandable stent comprising: a first portion that comprises a serpentine ring that comprises 2n interconnected struts, wherein the interconnected struts define n proximal apices and n distal apices; a second portion that comprises a serpentine ring that comprises n interconnected struts, wherein the interconnected struts define n/2 proximal apices and n/2 distal apices, wherein n/2 of the n proximal apices of the first portion are integral with the n/2 distal apices of the second portion; a barb integrally formed on every other strut in the second portion; a tuck pad integrally formed in the struts in the second portion that are adjacent the struts that comprise the barb; and connector elements integrally formed with the n distal apices of the first portion.
Claim 3
Dependent Claim
21 words
The radially expandable stent of claim 1 further comprising a connector member coupled to the connector elements of the first portion.
Claim 4
Dependent Claim
15 words
The radially expandable stent of claim 2 wherein the connector member comprises a serpentine ring.
Claim 5
Dependent Claim
26 words
The radially expandable stent of claim 3 wherein the serpentine ring connector member comprises 2n interconnected struts that define n proximal apices and n distal apices.
Claim 6
Dependent Claim
23 words
The radially expandable stent of claim 4 wherein the n proximal apices of the connector member comprise n integral connector member connector elements.
Claim 7
Dependent Claim
30 words
The radially expandable stent of claim 5 wherein the n connector elements of the connector member are coupled to the n connector elements of the first portion via coupling members.
Claim 8
Dependent Claim
32 words
The radially expandable stent of claim 6 wherein the coupling members comprise wire or coil wrapped around the connector elements of the connector member and the connector elements of the first portion.
Claim 9
Dependent Claim
29 words
The radially expandable stent of claim 1 wherein at least one of the first and second portion comprises a set of grooves that are configured to receive release bands.
Claim 10
Dependent Claim
22 words
The radially expandable stent of claim 1 wherein a width of the struts are tapered between the proximal apices and distal apices.
Claim 11
Dependent Claim
35 words
The radially expandable stent of claim 9 wherein the struts have a maximum strut width at the proximal apices or distal apices, and a minimum strut width between the proximal apices and the distal apices.
Claim 12
Dependent Claim
26 words
The radially expandable stent of claim 10 wherein a ratio of the maximum strut width to minimum strut width is between about 1:1 and about 10:1.
Claim 13
Dependent Claim
23 words
The radially expandable stent of claim 1 wherein the one or more barbs have a length from about 1 to about 5 mm.
Claim 14
Dependent Claim
23 words
The radially expandable stent of claim 1 wherein the one or more barbs have a length from about 2 to about 4 mm.
Claim 15
Dependent Claim
14 words
The radially expandable stent of claim 1 wherein the radially expandable stent is self-expanding.
Claim 16
Dependent Claim
48 words
The radially expandable stent of claim 1 wherein the proximal apices of at least one of the first portion and second portion comprise a curved outer surface and a curved inner surface, wherein both the inner and outer surfaces of the apices comprise a circular radius of curvature.
Claim 17
Dependent Claim
18 words
The radially expandable stent of claim 15 wherein the circular radii of curvature comprise a common center point.
Claim 18
Dependent Claim
19 words
The radially expandable stent of claim 15 wherein the circular radii of curvature comprise center points that are offset.
Claim 19
Dependent Claim
41 words
The radially expandable stent of claim 1 wherein the one or more barbs project radially outward from a longitudinal axis of a strut in the radially expandable stent and at an elevation angle between about 10 degrees to about 45 degrees.
Claim 20
Dependent Claim
39 words
The radially expandable stent of claim 1 wherein the one or more barbs are laterally biased in a plane that is orthogonal to a plane in which the barb radial angle is formed to form a barb kick angle.
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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) | 2009-12-11 | 2010-06-12 | 2010-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-12-11 | 2014-06-12 | 2014-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-12-11 | 2018-06-12 | 2018-12-12 | $7700.00 | Window Closed / Lapsed |