Aortic stent graft with durable suture attachment sites
AssigneeCook Medical Technologies LLC
InventorsRalf Spindler, Davorin Skender
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Abstract
An aortic stent graft includes a stent with a framework attached to a fabric tube by a plurality of suture ties. The fabric tube includes a plurality of discrete attachment areas that are at least partially surrounded by at least one permeable graft area. The fabric tube is one of a weave and a knit of thermoplastic yarn. Each of the suture ties associated with the discrete attachment areas at least one of penetrates through and encircles a respective one of the discrete attachment areas. The weave or knit of the discrete attachment areas is identical to that of the permeable graft area with an exception that a wall thickness of each of the discrete attachment areas is flattened relative to, and thinner than, a wall thickness of the permeable graft area.
Claims20
An aortic stent graft comprising:
- a stent that includes a framework;
- a fabric tube that includes a plurality of discrete attachment areas that are each at least partially surrounded by at least one permeable graft area, and the fabric tube is one of a weave or a knit of thermoplastic yarn;
- a plurality of suture ties that attach the framework to the fabric tube, and each of the suture ties penetrates through and/or encircles a respective one of the discrete attachment areas;
- and
- wherein the weave or the knit of the discrete attachment areas is identical to that of the permeable graft area with an exception that a wall thickness of each of the discrete attachment areas is flattened relative to, and thinner than, a wall thickness of the permeable graft area.
Dependencies are inferred from the claim text.