Abstract: The cold therapy unit of this invention includes a small portable ice chest and an electronic control unit to provide a unit which is safe to use right after surgery and has a portion which may be taken home by the patient. The combined unit provides the safety and accuracy of an institutional unit and the practicality and affordability of a portable take home unit. The cold therapy device includes an electronic control unit similar to the current institutional units in that it includes a thermoelectric module along with its associated electronic controls and a pump. The electronic control unit includes couplings to connect hoses leading to the patient and the cooling pad. Further, the portable ice chest having a lid fitted with an electric fluid pump which includes quick connect couplings allowing the ice chest to be placed in fluid communication with the electronic control unit. Finally, the fluid pump is electrically connected to the electronic control unit.