Patent ID: 7740609

Claim:
A catheter system comprising a balloon catheter comprising a shaft and a guide wire, the shaft having a proximal end, a distal end region, and at least one inflation lumen, the shaft comprising a steering balloon and a stabilizing balloon, the steering balloon located at the distal end region, the steering balloon having an outer surface and a plurality of chambers, a portion of each of the plurality of chambers forming a portion of the outer surface of the steering balloon, the steering balloon having an expanded state, in the expanded state the outer surface of the steering balloon releasably engaging a wall of a body lumen, wherein the guide wire has an optimal position relative to an occlusion in the body lumen when the steering balloon is in the expanded state; the stabilizing balloon being located proximal to the steering balloon, the stabilizing balloon having an expanded state; and a guide catheter having a proximal end, a distal end, and an interior surface, the interior surface defining a lumen, the lumen having a diameter, the stabilizing balloon in the expanded state fixedly engaged to the interior surface of the guide catheter.