TEMPERATURE CONTROL SYSTEM FOR MATTRESSES

摘要

A surgical operating table has a plurality of mattresses 41, 51 and 61, at least one of which is provided with a method for heating or cooling the patient. Such a mattress 61 is made from foam with a tube (64) embedded therein. The tube follows a boustrophedon path between an inlet 65 and an outlet 66. A heat exchanger 71 provides warmed or cooled fluid to the inlet and thence to the mattress and in a prefered embodiement the fluid is returned to the heat exchanger via the outlet.