US Patent 9402763 Cold therapy apparatus having heat exchanging therapy pad

A cold therapy system includes (i) a cooling bath structured to chill and hold chilled water; (ii) a pump positioned and arranged to pump the chilled water; (iii) a to-pad line positioned and arranged to hold chilled water pumped by the pump from the cooling bath; (iv) a from-pad line positioned and arranged to hold water returning to the cooling bath; and (v) a therapy pad in fluid communication with the to- and from-pad lines, the therapy pad including a patient-contacting chamber that is in heat exchange communication with a chilled-water chamber residing outside of the patient-contacting chamber when the therapy pad is donned.