Stent and stent delivery device
First Claim
Patent Images
1. An implant device comprising:
- a first tubular layer having a first porosity and being woven from at least one wire composed of a shape memory metal; and
,a second tubular layer having a second porosity and being woven from at least one wire composed of a shape memory metal;
said second tubular layer being located in said first tubular layer; and
,a connecting member woven through both said first tubular layer and said second tubular layer;
wherein said first tubular layer and said second tubular layer have substantially the same pitch and substantially no clearance between the layers.
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Abstract
In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.
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Citations
17 Claims
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1. An implant device comprising:
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a first tubular layer having a first porosity and being woven from at least one wire composed of a shape memory metal; and
,a second tubular layer having a second porosity and being woven from at least one wire composed of a shape memory metal;
said second tubular layer being located in said first tubular layer; and
,a connecting member woven through both said first tubular layer and said second tubular layer; wherein said first tubular layer and said second tubular layer have substantially the same pitch and substantially no clearance between the layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An implant device comprising:
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a first woven layer having a tubular shape with a space therethrough and being woven from at least one shape memory metal wire; a second woven layer having a tubular shape and being woven from at least one shape memory metal wire;
said second tubular layer being located in said first tubular layer within said space within said first woven layer; and
,a connecting member woven through both said first woven layer and said second woven layer; wherein said first woven layer and said second woven layer have substantially the same pitch and substantially no clearance between the layers. - View Dependent Claims (14, 15, 16)
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17. An implant device comprising:
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a first woven layer formed from at least one shape memory wire having a first porosity and forming a tubular shape with a space therethrough; a second woven layer having a second porosity that is lower than said first porosity;
said second layer located within said space within said tubular shape; anda connecting member woven through both layers; wherein the first and second layers have substantially the same pitch and substantially no clearance between the layers.
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Specification