Integral support stent graft assembly

Claim 1

A stent graft for repair of a vascular vessel, said stent graft comprising: a graft formed of a plurality of flexible filamentary members interwoven to form an elongated bifurcated tube having a first tube segment and two branch tube segments in fluid communication with said first tube segment at a bifurcation point, one of said branch tube segments being separable from said first tube segment, said first tube segment comprising a first sidewall portion defining a first central space and second and third sidewall portions defining second and third central spaces in fluid communication with said first central space, a line of attachment being formed between said second and third central spaces by joining opposing portions of said sidewall portions together, said line of attachment having a terminal point positioned at a junction of said first, second and third central spaces and thereby forming a shoulder within said graft, an end of said one branch segment having a first stent attached thereto and being insertable within one of said second and third central spaces, said end having said first stent being engageable with said shoulder, engagement between said end and said shoulder retaining said one branch segment to said first tube segment; a stiffening monofilament interwoven with said flexible filamentary members, said monofilament extending helically around said tube and defining a plurality of circumferential corrugations in said tube; and a second stent positioned at one end of said tube, said second stent surrounding said end and being deformable between a collapsed configuration and an expanded configuration supporting said tube in an open configuration, said one end being tapered from a smaller to a larger diameter for providing sealing engagement with said vascular vessel.