Patent ID: 8827952

Claim:
A medical device comprising: an inner tubular member including a proximal region and a distal region; an outer tubular member disposed about the inner tubular member, the outer tubular member including a proximal region and a distal region; a balloon assembly, the balloon assembly including a proximal waist coupled to the distal region of the outer tubular member and a distal waist coupled to the distal region of the inner tubular member, the balloon assembly defining a chamber configured to receive a fluid; and a fluid supply tube positioned between the inner tubular member and the outer tubular member, the fluid supply tube including a proximal end configured to couple to a cooling source and a distal end configured to deliver the fluid to the chamber of the balloon assembly, wherein the fluid supply tube is directly connected to the distal region of the outer tubular member and to the distal region of the inner tubular member, wherein the fluid supply tube includes a coiled portion positioned in the chamber of the balloon assembly.