Abstract A vascular graft comprises a perforate tubular compressible frame having a fabric liner disposed over at least a portion of the frames lumen. The graft may be used in combination with a base structure to form a bifurcated graft in situ . The base structure compresses a compressible frame having a fabric liner which defines a pair of divergent legs. The base structure is positioned within the aorta so that one leg enters each iliac. The tubular grafts can then be introduced into each leg to form the bifurcated structure. A graft delivery catheter includes a controllably flared sheath which facilitates recapture of a partially deployed graft.
A system for forming a bifurcated graft in situ , said system comprising a bifurcated base structure including a proximal anchor which defines a common flow lumen and a pair of connector legs which define divergent flow lumens from the common flow lumen; a first tubular graft which can be anchored within a first of the connector legs to form a continuous extension of the first divergent flow lumen; and a second tubular graft which can be anchored within a second of the connector legs to form a continuous extension of the second divergent flow lumen.
Claim 2
Dependent Claim
107 words
A system as in claim 1 , wherein the proximal anchor of the bifurcated base structure comprises a radially compressible perforate tubular frame having a proximal end, a distal end, and a lumen therebetween, and wherein the pair of connector legs comprise a liner secured within the tubular frame and having a pair of legs which extend distally from the tubular frame, and wherein at least one of the first and second tubular grafts 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.
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