SHAPE MEMORY TUBULAR STENT WITH GROOVES
First Claim
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1. An implantable, radially distensible device comprising:
- a tubular structure having an open first end and an opposed open second end, the tubular structure having a wall between said first open end and said second end to define an open lumen therethrough, the wall having an outer surface and an opposed inner surface defining a wall thickness therebetween;
the wall comprising a shape memory polymeric material;
wherein the tubular structure is a self-supporting wall structure.
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Abstract
An implantable, radially distensible stent includes a tubular structure having opposed open ends. The wall of the stent is made from a shape memory polymeric material. Grooves may be disposed within an outer surface of stent wall to improve flexibility and drainage of the stent.
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Citations
20 Claims
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1. An implantable, radially distensible device comprising:
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a tubular structure having an open first end and an opposed open second end, the tubular structure having a wall between said first open end and said second end to define an open lumen therethrough, the wall having an outer surface and an opposed inner surface defining a wall thickness therebetween;
the wall comprising a shape memory polymeric material;wherein the tubular structure is a self-supporting wall structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of making a stent, comprising:
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providing a shape memory polymer; forming the shape memory polymer into a tubular structure having an open first end and an opposed open second end, the tubular structure having a wall between said first open end and said second end to define an open lumen therethrough, the wall having an outer surface and an opposed inner surface defining a wall thickness therebetween; and disposing grooves within the outer surface of the wall. - View Dependent Claims (14, 15, 16)
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17. A method for intraluminal delivery of a stent, comprising providing an assembly, comprising:
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a delivery device having an elongate tube; and a radially distensible stent comprising; a tubular structure having an open first end and an opposed open second end, the tubular structure having a wall between said first open end and said second end to define an open lumen therethrough, the wall having an outer surface and an opposed inner surface defining a wall thickness therebetween;
the wall comprising a shape memory polymeric material; andgrooves disposed within the outer surface of said wall;
wherein the stent is disposed in a contracted state on the elongate tube of the delivery device;advancing the assembly to a site within a bodily lumen; radially expanding the stent within the bodily lumen; and withdrawing the delivery device to leave the stent within the bodily lumen. - View Dependent Claims (18, 19, 20)
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Specification