Patent ID: 7758604

Claim:
An angioplasty balloon catheter, comprising: an elongate catheter shaft; an expandable balloon coupled to the shaft, the balloon including a length and being configured to shift between a first generally deflated configuration prior to use, a generally inflated configuration, and a second generally deflated configuration, the balloon including an outer surface; wherein the balloon includes a plurality of wings formed therein when the balloon is in the deflated configuration; the wings each including a wing tip and a pair of undulating side surfaces that extend along substantially the entire length of the balloon, wherein at least one of the undulating side surfaces has a plurality of smooth and rounded undulations defined therein that are disposed in a regular pattern, where each of the undulations includes at least one peak and at least one valley; wherein at least one of the wings includes peaks and valleys on one of the undulating side surfaces that are longitudinally-aligned with the peaks and valleys on the other undulating side surface; wherein the balloon includes the undulations when the balloon is in the second generally deflated configuration; and a plurality of cutting members coupled to the outer surface of the balloon, wherein each of the cutting members is disposed on the outer surface of the balloon at a position between a pair of adjacent wings.