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Variable density braid stent

  • US 8,506,619 B2
  • Filed: 07/14/2010
  • Issued: 08/13/2013
  • Est. Priority Date: 12/22/2003
  • Status: Expired due to Term
First Claim
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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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