Patent US6579310B1 successfully refreshed from Google Patents.
US6579310B1
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US
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Stent having overlapping struts
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 2000-08-17
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Granted: 2003-06-17
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Expires: 2020-08-17
Abstract
Abstract An intravascular stent having struts which overlap, at least partially, when the stent is compressed. The overlapping struts allow the stent to be crimped to a smaller initial delivery diameter than may be achieved with non-overlapping designs for given metal density. The stent has a reduced delivery diameter which allows for the construction of reduced profile stent-delivery systems, which thereby allow for the stenting of smaller vessels than has heretofore been possible.
Inventors
- 👤 Daniel L. Cox
- 👤 Kenny Dang
- 👤 Andreina P. Gomez
- 👤 Orlando Padilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:07
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/91516; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2002/91575; A61F2/95; A61F2/958; A61F2002/9583; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2230/0028; A61F2230/0054
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
89 words
An intravascular stent for use in a body lumen, comprising: an elongated tubular body having a plurality of struts forming a stent pattern; the tubular member having a first diameter for navigating the body lumen and a second expanded diameter for implanting in the body lumen; and at least some of the struts are overlapping at multiple points and some of the struts are non-overlapping when the tubular member is in the first diameter and the overlapping struts expand and become non-over-lapping struts in the second expanded diameter configuration.
Claim 2
Dependent Claim
89 words
An intravascular stent for use in a body lumen, comprising: an elongated tubular body having a plurality of struts forming a stent pattern; the tubular member having a first diameter for navigating the body lumen and a second expanded diameter for implanting in the body lumen; and at least some of the struts are overlapping at multiple points and some of the struts are non-overlapping when the tubular member is in the first diameter and the overlapping struts expand and become non-over-lapping struts in the second expanded diameter configuration.
Claim 3
Dependent Claim
19 words
The stent of claim 1 , wherein the stent pattern has a plurality of cylindrical rings that are interconnected.
Claim 4
Dependent Claim
18 words
The stent of claim 2 , wherein the cylindrical rings are connected by at least one connector member.
Claim 5
Dependent Claim
16 words
The stent of claim 3 , wherein the at least on connector member is a link.
Claim 6
Dependent Claim
17 words
The stent of claim 2 , wherein at least some of the cylindrical rings have overlapping struts.
Claim 7
Dependent Claim
21 words
The stent of claim 3 , wherein the at least one connector member has struts which overlap the cylindrical ring struts.
Claim 8
Dependent Claim
20 words
The stent of claim 1 , wherein the overlapping struts define an inner diameter portion and an outer diameter portion.
Claim 9
Dependent Claim
129 words
An intravascular stent for use in a body lumen, comprising: a plurality of nested cylindrical rings having an initial delivery diameter and an expanded deployed diameter, rings being formed from a plurality of alternating U-shaped portions, each of the plurality of U-shaped portions lying in more than one cylindrical plane; the U-shaped portions of each cylindrical ring overlap the U-shaped portions of each adjacent cylindrical ring when the cylindrical rings are in the initial delivery diameter; each cylindrical ring having a proximal end and a distal end a cylindrical wall extending circumferentially between the proximal end and the distal end of the cylindrical ring; and the cylindrical rings being interconnected to from the stent, wherein at least one connecting link attaches each cylindrical ring to an adjacent cylindrical ring.
Claim 10
Dependent Claim
129 words
An intravascular stent for use in a body lumen, comprising: a plurality of nested cylindrical rings having an initial delivery diameter and an expanded deployed diameter, rings being formed from a plurality of alternating U-shaped portions, each of the plurality of U-shaped portions lying in more than one cylindrical plane; the U-shaped portions of each cylindrical ring overlap the U-shaped portions of each adjacent cylindrical ring when the cylindrical rings are in the initial delivery diameter; each cylindrical ring having a proximal end and a distal end a cylindrical wall extending circumferentially between the proximal end and the distal end of the cylindrical ring; and the cylindrical rings being interconnected to from the stent, wherein at least one connecting link attaches each cylindrical ring to an adjacent cylindrical ring.
Claim 11
Dependent Claim
46 words
The stent of claim 8 , wherein each U-shaped element is formed from struts, the struts having first ends and second ends and being joined at the first ends to form an apex, and curving outwardly therefrom to form an open end of the U-shaped portion.
Claim 12
Dependent Claim
26 words
The stent of claim 9 , wherein each strut has a stepped transition portion which divides each strut into an upper portion and a lower portion.
Claim 13
Dependent Claim
39 words
The stent of claim 10 , wherein the lower portions of the struts in each cylindrical ring slide underneath the upper portions of the struts in an adjacent cylindrical ring, when the stent is compressed to the delivery diameter.
Claim 14
Dependent Claim
14 words
The stent of claim 9 , wherein each strut has a generally S-shaped configuration.
Claim 15
Dependent Claim
31 words
The stent of claim 9 , wherein the apex of each U-shaped element in each cylindrical ring is circumferentially offset from the apex of each U-shaped element in each adjacent ring.
Claim 16
Dependent Claim
32 words
The stent of claim 9 , wherein the nested cylindrical rings are nested such that the apexes of each ring are centered approximately midway within the U-shaped portions of each adjacent ring.
Claim 17
Dependent Claim
14 words
The stent of claim 8 , wherein the stent is formed from a tube.
Claim 18
Dependent Claim
15 words
The stent of claim 8 , wherein the stent is formed from a metal alloy.
Claim 19
Dependent Claim
14 words
The stent of claim 8 , wherein the stent is formed from stainless steel.
Claim 20
Dependent Claim
16 words
The stent of claim 8 , wherein the stent is formed from a shape memory alloy.
Claim 21
Dependent Claim
15 words
The stent of claim 8 , wherein the stent is formed from a superelastic alloy.
Claim 22
Dependent Claim
14 words
The stent of claim 8 , wherein the stent is formed from a polymer.
Claim 23
Dependent Claim
142 words
A stent for use in a body lumen, comprising: a plurality of nested cylindrical rings interconnected to form the stent, each cylindrical ring having an initial delivery diameter and an expanded deployed diameter; each cylindrical ring having a plurality of peaks and valleys, the valleys of one cylindrical ring being circumferentially offset from the valleys of an adjacent cylindrical ring and the peaks of each cylindrical ring being in a different cylindrical plane than the valleys of the same cylindrical ring, wherein the valleys of one cylindrical ring overlap the peaks of an adjacent cylindrical ring when the cylindrical rings are in the delivery diameter; and at least one connecting link attaching each cylindrical ring to an adjacent cylindrical ring, the at least one connecting link being positioned substantially within one of the valleys and attaching the valley to an adjacent peak.
Claim 24
Dependent Claim
142 words
A stent for use in a body lumen, comprising: a plurality of nested cylindrical rings interconnected to form the stent, each cylindrical ring having an initial delivery diameter and an expanded deployed diameter; each cylindrical ring having a plurality of peaks and valleys, the valleys of one cylindrical ring being circumferentially offset from the valleys of an adjacent cylindrical ring and the peaks of each cylindrical ring being in a different cylindrical plane than the valleys of the same cylindrical ring, wherein the valleys of one cylindrical ring overlap the peaks of an adjacent cylindrical ring when the cylindrical rings are in the delivery diameter; and at least one connecting link attaching each cylindrical ring to an adjacent cylindrical ring, the at least one connecting link being positioned substantially within one of the valleys and attaching the valley to an adjacent peak.
Claim 25
Dependent Claim
32 words
The stent of claim 21 , wherein the cylindrical rings are nested such that the peaks of one cylindrical ring are centered approximately midway within the valleys of an adjacent cylindrical ring.
Claim 26
Dependent Claim
46 words
The stent of claim 21 , wherein each peak and valley is formed from struts, the struts having first ends and second ends and being joined at the first ends to form a peak and being separated at the second ends to form a valley therebetween.
Claim 27
Dependent Claim
26 words
The stent of claim 23 , wherein each strut has a stepped transition portion which divides each strut into an upper portion and a lower portion.
Claim 28
Dependent Claim
39 words
The stent of claim 24 , wherein the lower portions of the struts in each cylindrical ring slide underneath the upper portions of the struts in an adjacent cylindrical ring, when the stent is compressed to the delivery diameter.
Claim 29
Dependent Claim
14 words
The stent of claim 23 , wherein each strut has a generally S-shaped configuration.
Claim 30
Dependent Claim
14 words
The stent of claim 21 , wherein the stent is formed from a tube.
Claim 31
Dependent Claim
15 words
The stent of claim 21 , wherein the stent is formed from a metal alloy.
Claim 32
Dependent Claim
14 words
The stent of claim 21 , wherein the stent is formed from stainless steel.
Claim 33
Dependent Claim
16 words
The stent of claim 21 , wherein the stent is formed from a shape memory alloy.
Claim 34
Dependent Claim
15 words
The stent of claim 21 , wherein the stent is formed from a superelastic alloy.
Claim 35
Dependent Claim
14 words
The stent of claim 21 , wherein the stent is formed from a polymer.
Claim 36
Dependent Claim
112 words
A stent for use in a body lumen, comprising: a plurality of nested cylindrical rings interconnected to form the stent, each cylindrical ring having an initial delivery diameter and an expanded deployed diameter; each cylindrical ring having a plurality of peaks and valleys; means for causing the valleys of each cylindrical ring to overlap the peaks of each adjacent cylindrical ring when the stent is compressed to the initial delivery diameter; means for causing the valleys of each cylindrical ring to no longer overlap the peaks of each adjacent cylindrical ring when the stent is in the expanded deployed diameter; and means for connecting each cylindrical ring to an adjacent cylindrical ring.
Claim 37
Dependent Claim
112 words
A stent for use in a body lumen, comprising: a plurality of nested cylindrical rings interconnected to form the stent, each cylindrical ring having an initial delivery diameter and an expanded deployed diameter; each cylindrical ring having a plurality of peaks and valleys; means for causing the valleys of each cylindrical ring to overlap the peaks of each adjacent cylindrical ring when the stent is compressed to the initial delivery diameter; means for causing the valleys of each cylindrical ring to no longer overlap the peaks of each adjacent cylindrical ring when the stent is in the expanded deployed diameter; and means for connecting each cylindrical ring to an adjacent cylindrical ring.
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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) | 2006-06-16 | 2006-12-16 | 2007-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-16 | 2010-12-16 | 2011-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-06-16 | 2014-12-16 | 2015-06-17 | $7700.00 | Window Closed / Lapsed |