Patent ID: 8235941

Claim:
A catheter suitable for use in a complex vessel comprising: a substantially tubular structure having at least one lumen; and a single compliant inflatable balloon located at a distal portion of said tubular structure and in fluid communication with said lumen, wherein at least a portion of said inflatable balloon comprises a material which is based on styrenic olefinic rubber and hydrogenated isoprene having a durometer hardness of 5 Shore A to 25 Shore A and is pre-stretched or mechanically or thermally manipulated during fabrication to take on the irregular shapes matching those of a vessel to which it is to be introduced; and further wherein, when the balloon is inflated, conforms to the shape of the vessel for a sufficient length of the vessel to attenuate and/or occlude blood flow therein and still further wherein the catheter does not significantly deform the vessel when fully inflated.