Patent ID: 8545549

Claim:
A prosthesis comprising a stent graft including a substantially tubular body portion of a first diameter to engage against the wall of an aorta providing a body fluid flow path through the tubular body portion, the tubular body portion comprising an interior surface, a first tubular leg being of substantially lesser diameter than the tubular body portion to extend down into an iliac artery extending from the body portion and the first tubular leg being affixed to the tubular body portion and providing a first leg fluid flow path in communication with the body fluid flow path, an aperture in the tubular body portion adjacent the first tubular leg and a second tubular leg of substantially the same diameter as the first tubular leg and the second tubular leg being affixed to the tubular body portion, the second tubular leg extending from the aperture in a direction into the tubular body portion, the second tubular leg comprising a second leg fluid flow path and the second leg fluid flow path being in fluid communication with the body fluid flow path through the tubular body portion, the second tubular leg comprising self expanding Z stents and the self expanding Z stents being on the outside of the second tubular leg to provide a smooth inner socket surface and a suture material fastening between the second tubular leg and the interior surface of the tubular body portion at a position proximal of the aperture, and a flared guide at the aperture in the tubular body and being associated with the second tubular leg to provide assistance for access of a deployment device when inserting an extension leg into the prosthesis, the second tubular leg thereby providing a joining socket for a leg extension.