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Cuffs with two inflatable bladders designed to exert a pressure on the circumference of an extremity by means of a compressed gas delivered by a pneumatic tourniquet. These devices typically include two small bladders within the cuff that are inflated through tubes (e.g., hoses) that run from the bladder connectors to the source of compressed air located in the control unit of the tourniquet. The cuff is fastened to the extremity using contact mechanisms (e.g., clips) and frequently secured with an external ribbon. Each bladder may be inflated and deflated separately, improving safety and patient comfort. Double-bladder pneumatic tourniquet cuffs are used mainly during surgical procedures in the extremities using intravenous regional anesthesia. This enables surgeons to perform delicate procedures in bloodless operative fields. Both standard double-bladder cylindrical cuffs and double-bladder cuffs with other shapes (e.g., rectangular, conical) as well as dedicated cuffs with a smaller diameter distally than proximal when wrapped (i.e., contoured cuffs) are available in a variety of sizes. Both reusable and disposable cuffs intended for use in specific extremity areas (e.g., arm, thigh, wrist, ankle) are also available.
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