Patent ID: 8986248
Filing Date: 2015-03-24
Classification: A61M

Abstract:
1. A cutting balloon catheter, comprising: an elongate catheter shaft; an inflatable balloon secured to a distal end region of the catheter shaft, said inflatable balloon having a proximal tapered region, a distal tapered region and a body portion between the proximal and distal tapered regions, the body portion being cylindrical in an expanded state and adapted to be flattened in an unexpanded state; a plurality of cutting members disposed on an exterior surface of the balloon each cutting member of the plurality of cutting members having a first end and a second end, wherein the plurality of cutting members assume a linear configuration in the flattened unexpanded state with the first and second ends of each cutting member located on the body portion of the inflatable balloon, wherein each cutting member includes a cutting edge that defines a continuous helical path around the balloon in the expanded state; and a therapeutic agent disposed on the cutting members; wherein the cutting members include a plurality of surface characteristics formed in a surface of each of the cutting members for receiving the therapeutic agent for delivery to a treatment site.