Patent ID: 8052639

Claim:
A device for selectively occluding blood flow at a target site in a blood vessel while maintaining blood flow through the blood vessel, said device comprising: a catheter assembly; and an occlusion structure carried by said catheter assembly, said occlusion structure including: an inflatable member operable between an inflated configuration and an un-inflated configuration, said inflatable member defining a working space and being adapted to seal against a wall of the blood vessel to provide a barrier that encloses said working space to isolate said working space from the blood flow when in said inflated configuration at the target site; and a strut assembly having a proximal end and a distal end with said catheter assembly having a support member extending through said strut assembly, said strut assembly operable between a collapsed configuration and an expanded configuration independent of said inflated and un-inflated configurations of said inflatable member, said strut assembly carrying said inflatable member and defining a flow passage between said support member and said inflatable member for allowing blood flow therethrough in said expanded configuration at the target site.