CONTINUOUS DOUBLE LAYERED STENT FOR MIGRATION RESISTANCE
First Claim
Patent Images
1. A stent comprising:
- a. a stent body having a generally cylindrical mesh segment, said mesh segment formed from at least one wire, and said wire forming a plurality of intersecting crossing points to define an open lattice tubular wall; and
b. at least a portion of said open lattice tubular wall being inverted upon itself to form a multi-layered, generally cylindrical mesh segment.
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Abstract
The present invention relates to stent structures having improved migration resistance. In particular, the invention relates to mesh stents, such as braided or twisted stent designs, where at least a portion of the stent is folded back over itself to form a multi-layered stent device. Such multi-layered portions provide for migration resistance, among other advantages.
107 Citations
20 Claims
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1. A stent comprising:
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a. a stent body having a generally cylindrical mesh segment, said mesh segment formed from at least one wire, and said wire forming a plurality of intersecting crossing points to define an open lattice tubular wall; and b. at least a portion of said open lattice tubular wall being inverted upon itself to form a multi-layered, generally cylindrical mesh segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tubular stent comprising:
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a. an inner section comprising at least one first wire, said section defined by intersecting crossing points of said at least one first wire; and b. a concentric outer section comprising at least one second wire, said section defined by intersecting crossing points of said at least one second wire; wherein said outer section forms a continuous connection with said inner section. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of implanting a tubular stent comprising the steps of:
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a. implanting a stent, wherein said stent comprises; i. a stent body having a generally cylindrical mesh segment, said mesh segment formed from at least one wire, and said wire forming a plurality of intersecting crossing points to define an open lattice tubular wall; and b. inverting at least a portion of said open lattice tubular wall upon itself to form a multi-layered, generally cylindrical mesh segment.
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Specification