DISPOSABLE CASSETTE FOR INTRAVASCULAR HEAT EXCHANGE CATHETER

摘要

A heat exchange fluid supply system for supplying a heat exchange fluid to an intravascular heat exchange catheter includes a disposable cassette having a bulkhead and an external heat exchanger, and which is configured to operate in combination with a reusable master control unit. The bulkhead includes a reservoir section and a pump section. The reservoir section is provided with a means to monitor the amount of heat exchange fluid that is in the system. The bulkhead provides the mechanism for priming the system with heat exchange fluid from an external source and for circulating fluid to the catheter in a closed circuit. The pump section is configured to allow for pumping of heat exchange fluid at a constant pressure.

主权项

1. 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; 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.