US6176872B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial strength stent
Assignee: Ethicon Inc
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Filing: 1995-08-15
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Granted: 2001-01-23
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Expires: 2015-08-15
Abstract
Abstract With the foregoing in mind, the stent as described in this invention comprises a plurality of expandable cells. The cells are arranged circumferentially about the stent so that the stent in an unexpanded condition has a generally cylindrical construction and the expandable cells contain at least one metal bridge and at least one other circumferential arrangement of cells, and the bridge is initially arranged in a folded condition in the stent. When the cells expand, the bridge lengthens to a generally straight configuration. This straight configuration forms an arc of a circle about the cylindrical expandable stent. Ideally, there are multiple bridge connections made so that the stent has a full circumferential solid cross section along at least a portion of the cylindrical device.
Inventors
- 👤 Anthony S. Miksza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:01
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/9155; A61F2002/91558
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
82 words
A stent comprising: a plurality of expandable cells, said cells arranged circumferentially about said stent so that said stent when in an unexpanded condition has a generally cylindrical construction; and at least one of said expandable cells containing a metal bridge therein, said bridge initially arranged in a folded condition in said; and wherein when said cells expand, said bridge lengthens to a generally straight configuration, such that said straightened bridge forms an arc of a circle about said expanded cylindrical stent.
Claim 2
Dependent Claim
82 words
A stent comprising: a plurality of expandable cells, said cells arranged circumferentially about said stent so that said stent when in an unexpanded condition has a generally cylindrical construction; and at least one of said expandable cells containing a metal bridge therein, said bridge initially arranged in a folded condition in said; and wherein when said cells expand, said bridge lengthens to a generally straight configuration, such that said straightened bridge forms an arc of a circle about said expanded cylindrical stent.
Claim 3
Dependent Claim
29 words
The stent of claim 1 wherein there are a plurality of bridges arranged circumferentially in said stent, and said straightened bridges forming a continuous ring around said stent cylinder.
Claim 4
Dependent Claim
23 words
The stent of claim 2 wherein said straightened bridges forming said continuous ring are located at an longitudinal end of said stent cylinder.
Claim 5
Dependent Claim
108 words
A stent comprising: a plurality of expandable cells, said cells arranged circumferentially about said stent so that said stent when in an unexpanded condition has a generally cylindrical construction; and at least one of said expandable cells containing a metal bridge therein, said bridge initially arranged in a folded condition in said cell; and wherein when said cells expand, said bridge lengthens to a generally straight configuration, such that said straightened bridge forms an arc of a circle about said expanded cylindrical stent; and wherein there are a plurality of bridges arranged circumferentially in said stent, and said straightened bridges forming a continuous ring around said stent cylinder.
Claim 6
Dependent Claim
108 words
A stent comprising: a plurality of expandable cells, said cells arranged circumferentially about said stent so that said stent when in an unexpanded condition has a generally cylindrical construction; and at least one of said expandable cells containing a metal bridge therein, said bridge initially arranged in a folded condition in said cell; and wherein when said cells expand, said bridge lengthens to a generally straight configuration, such that said straightened bridge forms an arc of a circle about said expanded cylindrical stent; and wherein there are a plurality of bridges arranged circumferentially in said stent, and said straightened bridges forming a continuous ring around said stent cylinder.
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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) | 2004-01-23 | 2004-07-24 | 2005-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-23 | 2008-07-24 | 2009-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-23 | 2012-07-24 | 2013-01-23 | $7700.00 | Window Closed / Lapsed |