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Stent graft and introducer assembly

  • US 9,757,263 B2
  • Filed: 11/12/2010
  • Issued: 09/12/2017
  • Est. Priority Date: 11/18/2009
  • Status: Active Grant
First Claim
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1. A stent graft system configured for treatment of defects in the ascending aorta with a stent graft, the stent graft comprising a graft tube comprising a tubular portion of graft material, the graft tube provided with proximal and distal ends, the stent graft further comprising a plurality of stent rings attached to the graft tube, a first mechanically releasable diameter-restraining device located at or proximate the proximal end of the graft tube and restraining the proximal end of the graft tube, a second mechanically releasable diameter-restraining device restraining a proximal end of one of the plurality of stent rings located at an intermediate position between two other of the plurality of stent rings located on either side of the at least one of the plurality of stent rings located at the intermediate position, and a third mechanically releasable diameter-restraining device restraining a distal end of one of the plurality of stent rings located at the intermediate position along the graft tube, at least one release mechanism operable to release the second and third mechanically releasable diameter-restraining devices, and a bare stent extending from the proximal end of the graft tube and designed to flare outwardly relative to the graft tube so as to engage in use a cavity of an aortic sinus of a patient, where the stent graft has a first expanded configuration and a second expanded configuration where the stent graft is fully expanded, where in the first expanded configuration the graft tube at the intermediate position has a smaller diameter than adjacent portions of the graft tube.

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