Patent ID: 9144486
Filing Date: 2015-09-29
Classification: A61F

Abstract:
1. An endovascular graft comprising: a tubular structure having a first end and a second end, said tubular structure having a wall which defines a lumen between said first end and said second end; a fenestration located between said first end and said second end to extend through said wall of said tubular structure; and a sealing ring circumferentially disposed within or onto said tubular structure, said sealing ring being adjacent to said fenestration; wherein said sealing ring circumferentially disposed within or onto said tubular structure defines a circumferential sealing ring; said endovascular graft further comprising an arcuate intermediate sealing ring circumferentially disposed within or on said tubular structure, said intermediate sealing ring having a longitudinal plane which has an axial position relative to said tubular structure such that said axial position of said longitudinal plane is substantially the same as an axial position of a center of said fenestration relative to said tubular structure, said intermediate sealing ring having a first end and a second end, said intermediate sealing ring having a circumferential gap between said first end and said second end of said intermediate sealing ring, said intermediate sealing ring being circumferentially positioned relative to said fenestration such that said fenestration is within said gap; wherein said intermediate sealing ring is inflatable; said endovascular graft further comprising an inflatable lateral sealing ring disposed within or on said tubular structure in coaxial relation to said fenestration such that said fenestration is encircled by said lateral sealing ring; and said lateral and said intermediate sealing ring being connected to one another for communication therebetween such that inflation of one of said lateral sealing ring and said intermediate sealing ring provides inflation of the other of said lateral sealing ring and said intermediate sealing ring.