Patent ID: 8388573

Claim:
An agent delivery assembly comprising: an inflatable balloon substantially covered by a self-expandable cage such that when the inflatable balloon is inflated the self-expandable cage substantially surrounds an outer surface of the inflatable balloon, wherein the inflatable balloon is configured to be deployed within a lumen against a lumen wall and separated from the lumen wall by the self-expandable cage and is adapted to isolate a treatment site for an agent to be delivered thereto, and wherein the self-expandable cage is collapsible and is removable from the lumen; and a catheter to deliver the self-expandable cage and the inflatable balloon, the catheter comprising a delivery sheath to constrain and retract the self-expandable cage and an inner member whereto the inflatable balloon and the self-expandable cage attach, the inner member having perfusion openings to allow fluid flow around the inflatable balloon.