Control Unit
The Control Unit generates a precise level of heat and vacuum. It contains a reservoir of thermostatically controlled warming fluid that flows through tubing inside a connecting umbilical into the warming pads of the Warming Sleeve.

Warming Sleeve
The Warming Sleeve includes an inner layer consisting of two warming pads encapsulated within an outer vacuum sleeve. The patient's hand/forearm is sealed inside the Warming Sleeve. The warmed fluid from the Control Unit flows through channels in the warming pads; heat is conductively transferred through the skin surface and the arteriovenous anastomoses (AVAs) via blood flow back to the body's core. The Warming Sleeve is designed for single-patient use.