STENT GRAFT WITH LOW PROFILE PASSIVE SEALING SKIRT AND METHOD

Abstract

The techniques of this disclosure generally relate to a method including providing a sealing stent graft. The sealing stent graft includes a graft material, a stent coupled to the graft material, a sealing skirt of the graft material lying flat on the stent, and a collapsing suture coupled to the graft material. The method further includes expanding the stent to cause the collapsing suture to collapse the sealing skirt. Accordingly, the sealing skirt lies flat and does not impact the packing density of sealing stent graft when in a delivery configuration. During deployment, the collapse of the sealing skirt causes the sealing skirt to protrude radially outward. This thickening of the sealing skirt improves sealing of the sealing stent graft with other structures, e.g., vessels.

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