Patent ID: 7842056

Claim:
A catheter assembly for deployment in a vessel, the assembly comprising: a catheter shaft extending from a proximal end portion to a distal end portion; a balloon operatively coupled to the distal end portion of the catheter shaft; a sheath positioned about the balloon, the sheath including at least one cutting member coupled thereto, wherein, as the balloon is inflated, the cutting member is moved to a position to cut a portion of the vessel; wherein the cutting member defines a first cutting portion and a second cutting portion, the second cutting portion being configured to pivot relative to the first cutting portion to cut a wall of a bifurcated vessel; wherein the first cutting portion is coupled to the sheath, and the second cutting portion is coupled to the first cutting portion; and wherein the sheath defines an aperture, and wherein the second cutting portion is positioned to extend over the aperture such that, as the balloon is inflated, the balloon is configured to extend through the aperture and pivot the second cutting portion relative to the first cutting portion.