Patent ID: 6997942

Claim:
A disposable cassette for supplying a heat exchange fluid to a heat exchange catheter, said cassette comprising: an external heat exchanger comprising a flow channel having an inlet and an outlet, the external heat exchanger also having a structural member and a compliant member, said compliant member being sealed to said structural member in a pattern, said pattern forming the flow channel between said compliant member and said structural member; a first fluid supply line, said first fluid supply line in fluid communication with said flow channel inlet; a pump head contained in the disposable fluid supply cassette, said pump head having a pump inlet and a pump outlet, said pump inlet in fluid communication with said external heat exchanger flow channel outlet for pumping fluid from said flow channel outlet; a second fluid supply line, said second fluid supply line in fluid communication with said pump outlet for receiving fluid pumped out of said pump outlet; and a pressure regulator, said pressure regulator in fluid communication with said pump outlet for regulating the pressure of fluid pumped from said pump; and an external fluid source in fluid communication with the pump for priming the pump.