Patent ID: 8540764

Claim:
An endovascular prosthesis comprising: a tubular body having a proximal end, a distal end, and a body lumen disposed between the proximal and distal ends, the tubular body including a body graft material and a plurality of stents coupled to the body graft material, the stents being generally coaxial with the tubular body; and a mobile external coupling extending outwardly from the tubular body, wherein the mobile external coupling is generally frustoconically shaped and includes a base coupled to the tubular body, a top spaced from the tubular body, and a coupling lumen disposed between the base and the top, wherein the coupling lumen is in flow communication with the body lumen and wherein the mobile external coupling includes a coupling graft material, wherein the coupling graft material is a woven fabric with warp yarns which run generally parallel to a longitudinal axis of the mobile external coupling, the warp yarns including a shape memory material, wherein the shape memory material of the warp yarns is annealed straight to shape set the warp yarns to urge the mobile external coupling to protrude away from the tubular body.