A medical pad 10 includes a thermal exchange layer capable of absorbing and/or releasing heat to a patient and an adhesive surface 16A disposed on a skin-contacting side of the thermal exchange layer for adhering the pad 10 to the skin of the patient. The thermal exchange layer may comprise a fluid containing...http://www.google.ca/patents/US6375674?utm_source=gb-gplus-sharePatent US6375674 - Cooling/heating pad and system
