Patent ID: 8617136
Filing Date: 2013-12-31
Classification: A61M

Abstract:
1. A medical device for dilatation of a vessel and delivery of a therapeutic agent to a wall of the vessel, the medical device comprising: a catheter; a balloon located at a distal end of the catheter, the balloon having a collapsed configuration and an expanded configuration, the balloon having an outer surface configured to press against the wall of the vessel when the balloon is in its expanded configuration for dilatation of a constriction in the vessel; and a drug delivery extension configured to extend beyond the outer surface of the balloon when the balloon is in its expanded configuration in order to deliver the therapeutic agent to an area beyond the outer surface of the balloon; wherein when the drug delivery extension is extended, the drug delivery extension extends in a direction generally parallel to a longitudinal axis of the balloon, at least one of distally from a distal end of the balloon and proximally from a proximal end of the balloon.