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EP0758541A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Improved radial strength stent

Assignee: Ethicon Inc
•
Filing: 1996-08-14
•
Granted: —
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Expires: 2016-08-14
📄 Original PDF 🌐 Google Patents

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 EP
Data Source google_patents
Last Synchronized 2026-10-24 06:24
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 91 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 said expandable cell containing at least one metal bridge in at least one of said circumferential arrangement of said cells, said bridge initially arranged in a folded condition in said stent; 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 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 3
Dependent Claim 19 words
The stent of claim 2 wherein said continuous ring is located at an longitudinal end of said stent cylinder.
Claim 4
Dependent Claim 116 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 said expandable cell containing at least one metal bridge in at least one of said circumferential arrangement of said cells, said bridge initially arranged in a folded condition in said stent; 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 5
Dependent Claim 37 words
A stent comprising a plurality of expandable cells, and at least one of said cells having an expansion limiting bridge contained therein, said bridge causing said cell to have a finite expansion limit in one lateral dimension.
Claim 6
Dependent Claim 42 words
A stent having a plurality of expandable cells, said cells when expanded forming a generally cylindrical configuration, having a circumference and a longitudinal length, said stent characterized by an expanded continuous ring located in at least one circumference along said cylindrical length.

References Cited (Backward Citations)

EP0566807A1 Cited
WO1995009584A1 Cited
EP0669114A1 Cited

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