Patent ID: 8167926
Filing Date: 2012-05-01
Classification: A61F

Abstract:
1. A stent graft comprising a fenestration array, the stent graft being for deployment into vessels of the human or animal body such that the vessels include at least one side branch, the stent graft comprising a tubular body of a biocompatible graft material, a plurality of stents attached to and supporting the tubular body, the fenestration array comprising a plurality of fenestrations in a selected array, the selected array of fenestrations being on a portion of the tubular body and comprising from two to three fenestrations wide and from two to six fenestrations long, each fenestration of the plurality of fenestrations comprising an aperture in the biocompatible graft material and two flaps, the two flaps comprising a biocompatible graft material, the two flaps extending across the aperture whereby to close off the aperture, the two flaps comprising a first flap extending from one side of the aperture and a second flap extending from an opposite side of the aperture and the first and second flaps overlapping to define an inner flap and an outer flap with the inner flap overlapping the outer flap when viewed from within the tubular body and a resilient reinforcement associated with the inner flap whereby to hold the inner flap and thereby the outer flap in a sealing position over the aperture, wherein the two flaps can be displaced to allow access through the fenestration.