Heat exchange system for patient temperature control with multiple coolant chambers for multiple heat exchange modes

摘要

The cold plates (30, 32) through which the refrigerant flows define slots (34) between them, the slots (34) being cassettes (with relatively low flow of sterile working fluid flowing from the intravascular heat exchange catheter (12)). 50) can be accepted. The working fluid from the catheter (12) is heated or cooled by heat exchange with the cold plates (30, 32) through the wall of the cassette (50) to maintain sterility of the working fluid. Meanwhile, the high flow working fluid chamber surrounds the cold plate (30, 32), and the non-sterile working fluid from the external heat exchange pad (14) flows through the high flow working fluid chamber to the cold plate (30, 32). Heat exchange through direct contact with 32). [Selection] Figure 1