1、在紧急情况或事故下，卡式止血带用于急救止血使用；防止受伤人员流血过多而增加生命危险。 1. In case of emergency or accident, the card type tourniquet is used for emergency hemostasis. It prevents the injured person from bleeding too much and increases their life risk. 2、卡式止血带可配套医用敷料，用于包扎受伤人员的外伤；如头部受伤，将纱布敷在伤口用卡扣止血带收紧。 2. The card type tourniquet can be used as a medical dressing for dressing wounds. If head injury is applied, the gauze should be applied to the wound to tighten with the buckle tourniquet. 3、卡式止血带用于病人静脉注射和抽血时使用，伤员可单独使用，是病人最忠实的伙伴。 3. The card tourniquet is used for patients intravenous injection and blood drawing. The wounded can be used alone, and is the most faithful partner of the patient.