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Stent graft

  • US 9,907,642 B2
  • Filed: 08/15/2014
  • Issued: 03/06/2018
  • Est. Priority Date: 07/27/2009
  • Status: Expired due to Fees
First Claim
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1. A stent graft system comprising:

  • a stent having a flow lumen therethrough;

    a first inner graft supported along at least a portion of the length of the stent, the first inner graft comprising an outside surface and an inside surface;

    one or more openings extending through a wall of the first inner graft;

    one or more valve members in communication with the one or more openings prior to inflating an outer graft, the one or more valve members being configured to permit blood to flow from the flow lumen through the one or more openings and into a space between the first inner graft and the outer graft when the one or more valve members are in communication with the one or more openings, and to at least inhibit the flow of blood from the space through the one or more openings and into the flow lumen,the one or more valve members each comprising a respective valve portion attached to a second inner graft and being positioned radially outward of the outside surface of the first inner graft when inhibiting the flow of blood from the space through the one or more openings and into the flow lumenwherein the outer graft is positioned around the stent and configured to cover at least the one or more openings, the outer graft being configured to inflate to a wall of an aneurysm sac when blood flows from the flow lumen and through the one or more openings into the space.

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