Variable density braid stent
First Claim
1. A stent for insertion into a patient blood vessel having an aneurysm, the stent comprising:
- a substantially tubular body defining a flow path therethrough and comprising a first region and a second region,the first region of the tubular body being positionable adjacent the aneurysm and comprising a plurality of stent members interwoven to form at least one first braid defining a plurality of first region openings,the second region of the tubular body located immediately adjacent the first region and comprising at least one second braid, the second braid comprising at least one strand that is formed by at least two stent members from the plurality of stent members,wherein the at least one second braid defines a plurality of second region openings,at least one of the second region openings being larger than any of the first region openings, andwherein the first region openings are sized to restrict passage of blood therethrough to cause stagnation of the aneurysm, and the second region openings are sized to allow substantially uninhibited blood flow therethrough.
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Accused Products
Abstract
A stent comprises at least one stent member woven to form a substantially tubular body that defines a flow path. The tubular body comprises a first region and a second region. In the first region the at least one stent member defines a plurality of first region openings and in the second region at least one first portion of the at least one member and at least one second portion of the at least one member are engaged together to form at least one primary strand. The at least one primary strand defines a plurality of second region openings. The at least one of the plurality of second region openings is in fluid communication with the flow path. The plurality of second region openings provide the second region with a greater porosity than the first region.
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Citations
14 Claims
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1. A stent for insertion into a patient blood vessel having an aneurysm, the stent comprising:
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a substantially tubular body defining a flow path therethrough and comprising a first region and a second region, the first region of the tubular body being positionable adjacent the aneurysm and comprising a plurality of stent members interwoven to form at least one first braid defining a plurality of first region openings, the second region of the tubular body located immediately adjacent the first region and comprising at least one second braid, the second braid comprising at least one strand that is formed by at least two stent members from the plurality of stent members, wherein the at least one second braid defines a plurality of second region openings, at least one of the second region openings being larger than any of the first region openings, and wherein the first region openings are sized to restrict passage of blood therethrough to cause stagnation of the aneurysm, and the second region openings are sized to allow substantially uninhibited blood flow therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification