Stent graft with branch leg

摘要

A system for bypassing multiple aneurysms comprises a first prosthesis (30), at least two second prostheses (11a,11b) communicating with the first prosthesis, and at least two third prostheses (11e,11f) communicating with respective second prostheses. Each of the second prostheses is configured to bypass a first aneurysm (100) and to extend into an artery (207,208) downstream of the first aneurysm. A first one (11e) of the third prostheses is matingly engaged with a first one of the second prostheses and configured to provide a fluid flow path in a second artery disposed downstream from the first artery and to bypass a second aneurysm. The first one (11e) of the third prostheses is configured to provide a fluid flow path through a first common iliac artery and includes a branch leg (11g) configured to create a first fluid flow path from the first one of the third prostheses into a first internal iliac artery.