US7175654B2
Expired / Lapsed
US
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Stent design having stent segments which uncouple upon deployment
Assignee: Cordis US Corp
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Filing: 2003-10-16
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Granted: 2007-02-13
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Expires: 2023-10-16
Abstract
Abstract A stent or other intraluminal medical device may be constructed utilizing multiple, individual, independent, self-expanding stent segments which are designed to interlock when constrained within a delivery sheath and uncouple upon deployment. The individual segments are releasably connected by a series of bridging elements and receptacles.
Inventors
- 👤 Craig Bonsignore
- 👤 Kirk Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:37
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/89; A61F2/852; A61F2002/826; A61F2002/91516; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2002/91591; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2250/00; A61F2250/0058; A61F2250/006; A61F2250/0063; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
An intraluminal medical device comprising multiple, independent, self-expanding stent segments, each stent segment including a plurality of longitudinal struts, a plurality of loops connecting adjacent struts, at least one bridging element comprising an elongate member extending from one of the plurality of loops and having a free end with a mating protrusion, the elongate member being longer than the plurality of longitudinal struts, and at least one receptacle, the at least one receptacle comprising an additional space between adjacent longitudinal struts and an expanded loop, defining a cavity for the elongate member and the mating protrusion wherein the at least one bridging element of one or more of the stent segments is configured to be releasably engaged with the at least one receptacle on an adjacent stent segment and wherein the at least one bridging element on one stent segment is offset radially with respect to the at least one bridging element on an adjacent stent segment such that each bridging element in one stent segment does not line up with any bridging element on an adjacent stent segment.
Claim 2
Dependent Claim
179 words
An intraluminal medical device comprising multiple, independent, self-expanding stent segments, each stent segment including a plurality of longitudinal struts, a plurality of loops connecting adjacent struts, at least one bridging element comprising an elongate member extending from one of the plurality of loops and having a free end with a mating protrusion, the elongate member being longer than the plurality of longitudinal struts, and at least one receptacle, the at least one receptacle comprising an additional space between adjacent longitudinal struts and an expanded loop, defining a cavity for the elongate member and the mating protrusion wherein the at least one bridging element of one or more of the stent segments is configured to be releasably engaged with the at least one receptacle on an adjacent stent segment and wherein the at least one bridging element on one stent segment is offset radially with respect to the at least one bridging element on an adjacent stent segment such that each bridging element in one stent segment does not line up with any bridging element on an adjacent stent segment.
Claim 3
Dependent Claim
21 words
The intraluminal medical device according to claim 1 , wherein the cavity and the mating protrusion have a substantially oval shape.
Claim 4
Dependent Claim
18 words
The intraluminal medical device according to claim 2 , wherein the self-expanding stent segments comprise a superelastic alloy.
Claim 5
Dependent Claim
27 words
The intraluminal medical device according to claim 3 , wherein the superelastic alloy comprises from about fifty percent to about sixty percent Nickel and the remainder titanium.
Claim 6
Dependent Claim
24 words
The intraluminal medical device according to claim 1 , wherein the plurality of struts and the plurality of loops form a substantially S-shaped configuration.
Claim 7
Dependent Claim
16 words
The intraluminal medical device according to claim 1 , further comprising one or more radiopaque markers.
Claim 8
Dependent Claim
21 words
The intraluminal medical device according to claim 6 , wherein the one or more markers are incorporated into the mating protrusion.
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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) | 2010-02-12 | 2010-08-14 | 2011-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-02-12 | 2014-08-14 | 2015-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-02-12 | 2018-08-14 | 2019-02-13 | $7700.00 | Window Closed / Lapsed |