Patent ID: 8317854

Claim:
A system for forming a bifurcated graft in situ in a primary lumen bifurcating into first and second branch lumens, said system comprising: a bifurcated base structure including a proximal anchor comprised of a radially compressible perforate tubular frame having a proximal end, a distal end and a lumen therebetween and a trouser-shaped liner attached within the tubular frame lumen and having a pair of legs which extend distally from the distal end of the tubular frame, wherein the pair of legs define first and second divergent flow lumens from a common flow lumen of the liner, wherein a length of the trouser-shaped liner is dimensioned such that distal ends of the pair of legs lie within the primary lumen in situ; a first tubular graft having a proximal end anchored within the distal end of a first of the pair of liner legs and having a flow lumen that forms a continuous extension of the first divergent flow lumen, wherein a length of the first tubular graft is dimensioned to bridge a distance between the distal end of the first liner leg and the first branch lumen; and a second tubular graft having a proximal end anchored within the distal end of a second of the pair of liner legs and having a flow lumen that forms a continuous extension of the second divergent flow lumen, wherein a length of the second tubular graft is dimensioned to bridge a distance between the distal end of the second liner leg and the second branch lumen, wherein each of the first and second tubular grafts further comprises, (a) a radially compressible perforate tubular frame having a proximal end, a distal end, and a lumen therebetween and (b) a liner extending over an interior lumen surface of the tubular frame to define the respective tubular graft flow lumen therethrough, and wherein the first and second tubular grafts are configured to be joined to the bifurcated base structure in situ after the bifurcated base structure is anchored within the primary lumen to form the bifurcated graft.