Patent ID: 8187314

Claim:
A prosthesis and deployment catheter system for treating an opening from a main body lumen to a branch body lumen, the prosthesis comprising: a radially expansible support, the support configured to be deployed in at least a portion of the branch body lumen; a plurality of fronds extending axially from either a proximal or distal end of the support, the fronds being configured to be positioned across the ostium and into the main body lumen; and at least one circumferential link connecting at least a first frond to a second frond, the circumferential link spaced axially apart from the support; wherein the prosthesis is mounted on a balloon catheter such that the radially expansible support is carried by a first portion of a balloon that is inflatable to a first diameter and the circumferential link is carried by a second portion of a balloon that is inflatable to a second diameter that is larger than the first diameter.