Non-migrating vascular prosthesis and minimally invasive placement system therefor

摘要

A graft assembly 10 for securely positioning a graft at a predetermined location across an abdominal aortic aneurysm. The assembly includes a resilient self expanding anchor 30 that is secured to the distal end of a mesh graft 20. The anchor is formed from a single wire having a series of zigzag bends, such that when the ends of the wire are attached a tubular anchor is produced. The anchor is further characterized by curved segments between the bends which create an anchor having a reverse barrel shape.