Patent ID: 6126684
Filing Date: 2000-10-03
Classification: A61F,A61M

Abstract:
A catheter adapted to exchange heat with a body fluid flowing in a first direction through a body conduit, the catheter comprising:a shaft having an axis extending between a proximal end and a distal end, the shaft having an input lumen and output lumen;a heat exchange region disposed a the distal end of the shaft and including a first balloon and a second balloon each having an outer surface adapted to be operatively placed in heat exchange relationship with the body fluid flowing in the first direction;the input lumen of the shaft being coupled to the first balloon at a first location, and the output lumen of the shaft being coupled to the first balloon at a second location so that a heat exchange fluid introduced into the input lumen will enter the first balloon at the first location and will exit the first balloon at the second location through the output lumen; andthe first location being disposed in the first direction relative to the second location when the catheter is operatively disposed in the body fluid.