Patent ID: 8021412

Claim:
A leg extension stent graft in combination with an iliac stent graft, the iliac stent graft comprising a first tubular body of a biocompatible graft material, the first tubular body comprising a proximal end and a distal end, a side arm extending from the first tubular body between the proximal end and the distal end, the side arm defining on the tubular body, where the side arm extends from the first tubular body, a wider portion of the first tubular body, the wider portion increasing in size away from the proximal end, the leg extension stent graft comprising a second tubular body of a biocompatible graft material, the second tubular body having a proximal end with an outside sealing surface, a plurality of self-expanding stents connected to the second tubular body along the length thereof with at least one self-expanding stent within the second tubular body at the proximal end and the second tubular body having a distal end comprising a connection region, the connection region comprising a flared stent defining an external frusto-conical surface extending from the distal end of the second tubular body, the flared stent comprising a self expanding stent being formed from a resilient wire, the flared stent comprising a frusto-conical configuration with a narrower proximal end and a wider distal end, the resilient wire comprising a plurality of struts, a proximal bend between each strut at the proximal end of the flared stent and a distal bend between each strut at the distal end of the flared stent and further including a wire ring at the distal end of the connection region, the wire ring being fastened to the distal bends of the flared stent to assist the flared stent to maintain the frusto-conical configuration, the proximal bends being fastened to the distal end of the second tubular body, the flared stent thereby providing a connection arrangement with the connection region of the leg extension stent graft being engaged within the iliac stent graft from the proximal end thereof wherein the flared stent defining an external frusto-conical surface is engaged within the wider portion of the first tubular body, whereby the leg extension stent graft provides a connection between the branched iliac stent graft and a pre-deployed aortic bifurcation stent graft.