Patent FR850942A successfully refreshed from Google Patents.
US6454795B1
Expired / Lapsed
US
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High expansion ratio stent
Assignee: TIMOTHY AM CHUTER MD
•
Filing: 1999-08-17
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Granted: 2002-09-24
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Expires: 2019-08-17
Abstract
Abstract The present invention concerns an improved stent in which the limbs have been fabricated from a medium having a cross sectional profile in which at least one segment is flat and straight, whereby the stent is provided with improved expansion characteristics.
Inventors
- 👤 Timothy A. M. Chuter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:46
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/848; A61F2002/8483
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
99 words
A stent segment comprising members having a rectangular cross-sectional profile with edge sides having a dimension less than face surfaces, each member being comprised of two curved portions having opposite directions of curvature, a transition segment connecting said two curved portions, adjacent members joined on their face surfaces by having a first end of each member joined to a second end of an adjacent member to form said stent segment having an outer surface, each member lying in said stent segment outer surface, said face surfaces of each member being oriented generally perpendicular to said stent segment outer surface.
Claim 2
Dependent Claim
99 words
A stent segment comprising members having a rectangular cross-sectional profile with edge sides having a dimension less than face surfaces, each member being comprised of two curved portions having opposite directions of curvature, a transition segment connecting said two curved portions, adjacent members joined on their face surfaces by having a first end of each member joined to a second end of an adjacent member to form said stent segment having an outer surface, each member lying in said stent segment outer surface, said face surfaces of each member being oriented generally perpendicular to said stent segment outer surface.
Claim 3
Dependent Claim
14 words
The stent segment of claim 1 , wherein each said member comprises a wire.
Claim 4
Dependent Claim
16 words
The stent segment of claim 1 , wherein each member is equal in length and configuration.
Claim 5
Dependent Claim
58 words
The stent segment of claim 1 , wherein each said member includes an intermediate straight mid-portion segment connecting the two curved portion segments and a short-straight segment connected to each curved portion segment at each end of each member, each said short-straight segment of each said member being joined to an adjacent short-straight segment of an adjacent member.
Claim 6
Dependent Claim
29 words
The stent segment of claim 4 , wherein said short-straight segment at the end of at least one of said members is elongated and further includes a serrated edge.
Claim 7
Dependent Claim
25 words
The stent segment of claim 4 , wherein said short-straight segment at the end of at least one of said members is elongated and barbed.
Claim 8
Dependent Claim
27 words
The stent segment of claim 4 , wherein said short-straight segment at the end of at least one of said members is elongated and has a hole.
Claim 9
Dependent Claim
103 words
The stent segment of claim 4 , further including at least one strut to augment stent segment expansion and to resist stent segment compression, said strut having a shorter length than each member and having two curved portions having opposite directions of curvature, an intermediate straight, flat mid-portion connecting the two curved portions, and a short-straight portion connected to each curved portion at each end of said strut, one of said short-straight portions of said strut being joined to one of said short-straight segments of one of said members and lying in said stent segment outer surface, said strut positioned between adjacent members.
Claim 10
Dependent Claim
101 words
The stent segment according to claim 4 , wherein said stent segment further includes at least one strut having a length substantially identical to one of said members to augment stent segment expansion and to resist stent compression, said strut having two curved portions having opposite directions of curvature, an intermediate straight mid-portion connecting said two curved portions, and a short-straight portion connected to said curved portion at each end of said strut, said strut lying in said stent segment outer surface, said short-straight portion of said strut being attached to one of said short-straight segments of one of said members.
Claim 11
Dependent Claim
21 words
The stent segment of claim 1 , wherein each member is bent back and forth in a generally serpentine wave pattern.
Claim 12
Dependent Claim
13 words
The stent segment of claim 1 , wherein the outer surface is cylindrical.
Claim 13
Dependent Claim
94 words
A stent comprising members having a rectangular cross-sectional profile with edge sides having a dimension less than face surfaces, each member being comprised of two curved portions having opposite directions of curvature, a transition connecting said two curved portions, adjacent members joined on their face surfaces by having a first end of each member joined to a second end of an adjacent member to form said stent having an outer surface, each member lying in said stent outer surface, said face surfaces of each member being oriented generally perpendicular to said stent outer surface.
Claim 14
Dependent Claim
94 words
A stent comprising members having a rectangular cross-sectional profile with edge sides having a dimension less than face surfaces, each member being comprised of two curved portions having opposite directions of curvature, a transition connecting said two curved portions, adjacent members joined on their face surfaces by having a first end of each member joined to a second end of an adjacent member to form said stent having an outer surface, each member lying in said stent outer surface, said face surfaces of each member being oriented generally perpendicular to said stent outer surface.
Claim 15
Dependent Claim
13 words
The stent of claim 12 , wherein each said member comprises a wire.
Claim 16
Dependent Claim
15 words
The stent of claim 12 , wherein each member is equal in length and configuration.
Claim 17
Dependent Claim
57 words
The stent of claim 12 , wherein each said member includes an intermediate straight mid-portion segment connecting the two curved portion segments and a short-straight segment connected to each curved portion segment at each end of each member, each said short-straight segment of each said member being joined to an adjacent short-straight segment of an adjacent member.
Claim 18
Dependent Claim
28 words
The stent of claim 14 , wherein said short-straight segment at the end of at least one of said members is elongated and further includes a serrated edge.
Claim 19
Dependent Claim
24 words
The stent of claim 15 , wherein said short-straight segment at the end of at least one of said members is elongated and barbed.
Claim 20
Dependent Claim
26 words
The stent of claim 15 , wherein said short-straight segment at the end of at least one of said members is elongated and has a hole.
Claim 21
Dependent Claim
100 words
The stent of claim 15 , further including at least one strut to augment stent expansion and to resist stent segment compression, said strut having a shorter length than each member and having two curved portions having opposite directions of curvature, an intermediate straight, flat mid-portion connecting the two curved portions, and a short-straight portion connected to each curved portion at each end of said strut, one of said short-straight portions of said strut being joined to one of said short-straight segments of one of said members and lying in said stent outer surface, said strut positioned between adjacent members.
Claim 22
Dependent Claim
97 words
The stent according to claim 15 , wherein said stent further includes at least one strut having a length substantially identical to one of said members to augment stent expansion and to resist stent compression, said strut having two curved portions having opposite directions of curvature, an intermediate straight mid-portion connecting said two curved portions, and a short-straight portion connected to said curved portion at each end of said strut, said strut lying in said stent outer surface, said short-straight portion of said strut being attached to one of said short-straight segments of one of said members.
Claim 23
Dependent Claim
20 words
The stent of claim 12 , wherein each member is bent back and forth in a generally serpentine wave pattern.
Claim 24
Dependent Claim
12 words
The stent of claim 12 , wherein the outer surface is cylindrical.
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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) | 2005-09-23 | 2006-03-25 | 2006-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-09-23 | 2010-03-25 | 2010-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-09-23 | 2014-03-25 | 2014-09-24 | $7700.00 | Window Closed / Lapsed |