Patent ID: 7799064
Filing Date: 2010-09-21
Classification: A61F

Abstract:
1. A system comprising: only a single catheter, the single catheter having only a single balloon, the single catheter being adapted for insertion into a body vessel and advancement to a vessel bifurcation site, wherein the single balloon includes an elongate body region and a pre-formed bulge region that protrudes radially outward from the body region when expanded, the pre-formed bulge region is positioned at a location between a proximal end and a distal end of the body region and at a predetermined location around a circumference of the body region-that extends less than the entire circumference of the body region, wherein the pre-formed bulge region is configured to have different pressure and/or inflation characteristics than the elongate body region; and a bifurcation stent including a stent body having a substantially tubular stent wall defining a circumferential plane, and a plurality of movable members engaged to the stent wall, each of the moveable members being moveable independent of the other moveable members, the stent body being expandable from an unexpanded condition to an expanded condition by expansion of the single balloon extending within the stent wall from at least a proximal end to at least a distal end of the stent body, in the unexpanded condition the plurality of movable members being retained substantially within the circumferential plane of the stent wall and aligned with the pre-formed bulge region of the single balloon, and in the expanded condition a portion of the plurality of movable members being extended radially outward from the stent wall by expansion of the pre-formed bulge region of the single balloon to form a scaffold, the scaffold defining a side opening in the stent wall; wherein the pre-formed bulge region is configured to protrude radially outward from the body region independently of whether or not the bifurcated stent is disposed on the single balloon.