Patient temperature control system with fluid temperature response

A patient temperature control system comprising:

• at least one heat exchange device configured to affect temperature of circulating in response to receipt of a power signal;
• a circulating pump for circulating fluid through said at least one heat exchange device and at least one interconnectable contact pad;
• an input temperature sensor which monitors the fluid temperature circulating out of the at least one interconnectable pad and an exit temperature sensor which measures the fluid temperature circulating into the at least one interconnectable pad;
• and
• a controller connectable to the at least one heat exchange device and the input and output temperature sensors, said controller configured to identify a first control term proportional to a first difference in temperature the inlet temperature and a selected set point, and a second control term proportional to a difference between the inlet temperature and a selected set point, wherein the first and second terms are further employed by the system controller to generate a power signal transmittable to at least one heat exchange device configured to affect the temperature of the circulating fluid.