Self-expanding stent-graft

A stent-graft for insertion into target site within a vessel of a patient, said graft having a crimped state for delivery to said target site, and an expanded state for implantation therein, said stent-graft comprising:

• a) a self-expanding outer stent comprising a tubular member having a front and back ends, and an interior and an exterior, said outer stent made from a superelastic material;
• b) a tubular flexible porous graft member extending along said interior of said outer stent, said graft member having front and back ends, and an interior and exterior, said front and back ends of said graft member are folded over onto said front and back ends of said outer stent to form cuffs, wherein when said outer stent is in an expanded state, a length of said graft member which is disposed along said interior of said outer stent between its front and back ends that is greater than a length of said outer stent between its front and back ends, whereby there is slack in said graft member when said stent-graft is in an expanded condition;
• and
• c) a self-expanding inner stent comprising a tubular member having a front and back ends, and an interior and an exterior, said outer stent made from a super elastic material, said inner stent is disposed within said interior of said graft member such that said inner stent, said graft member and said outer stent are all abutting.

A stent-graft for insertion into a target site within a vessel of a patient, said graft having a crimped state for delivery to said target site, and an expanded state for implantation therein, said stent-graft comprising:

• a) a self-expanding outer stent comprising a tubular member having a front and back end, and an interior and an exterior, said outer stent made from a superelastic material;
• b) a tubular flexible porous graft member extending along said interior of said outer stent, said graft member having front and back ends, and an interior and exterior, said front and back ends of said graft member are folded over and bonded onto said front and back ends of said outer stent to form cuffs, wherein when said outer stent is in an expanded state, a length of said graft member which is disposed along said interior of said outer stent between its front and back ends that is greater than a length of said outer stent between its front and back ends, whereby there is slack in said graft member when said stent-graft is in an expanded condition;
• and
• c) a self-expanding inner stent comprising a tubular member having a front and back end, and an interior and an exterior, said inner stent made from a superelastic material, said inner stent is disposed within said interior of said graft member such that said inner stent, said graft member and said outer stent are all abutting.