A tourniquet cuff is a medical device used to control blood flow to a limb during surgical procedures or in emergency situations to prevent excessive bleeding. It typically consists of a durable, flexible cuff that can be wrapped around an arm or leg and inflated to apply pressure. This pressure temporarily occludes blood vessels, reducing or stopping blood flow to the affected area.

Tourniquet cuffs are vital tools in modern medical practice, significantly improving outcomes in surgery and trauma care.