Patent ID: 8361096

Claim:
A cutting balloon catheter, comprising: an elongate catheter shaft; a balloon coupled to a distal portion of the catheter shaft, the balloon being configured to be inflated from a deflated configuration to an expanded configuration; a flexible joining member mounted on the balloon; and a cutting member coupled to the joining member, the cutting member including a cutting edge, a base portion, and a slot extending from the cutting edge toward the base portion dividing the cutting edge into a first cutting edge portion and a second cutting edge portion discontinuous with the first cutting edge portion, the cutting member being constructed of a single, continuous piece of material forming the first cutting edge portion, the second cutting edge portion and the base portion; wherein each of the first cutting edge portion and the second cutting edge portion have a length greater than a width of the slot; and wherein the base portion of the cutting member includes a plurality of tabs having a splayed pillar-like shape defined along the base portion embedded in the flexible joining member to interlock the flexible joining member to the cutting member.