The utility model related to the medical treatment of blood transfusion, infusion, blood, bleeding when using a disposable tourniquet. Connection draw-off disposable tourniquet is according to the characteristics of the low cost and economic burden in patients with small, easy to use, can reduce the labor intensity of medical care, improve work efficiency, avoid the cross infection of bacteria in the process of treatment, the implementation of the disposable tourniquet, to guarantee the medical and the patient's health, and added a ideal preventive measures. 

Tourniquets is used for limb is simple and effective hemostatic method when bleeding, first aid, it through the oppression blood vessel blocking blood lines to achieve hemostasis. But if the improper use or use for a long time, a tourniquet can result in distal limb ischemia, necrosis, causing disability, therefore, only if the bleeding, cannot stop bleeding with other approaches to apply a tourniquet. 

A tourniquet is good with rubber or rubber tube, unfavorable use cloth belt, such as wire without elastic band. Binding location should be above the wound (near heart side), and close to the wound, the above arm on a third for the central and on his thigh, calf tourniquet and forearms can't, because it has two bones, blood vessels just walk between the two bones, tourniquet up less than the role of pressure vessels. One-third in parts of the upper arm nor a tourniquet on, because it may cause nerve damage and paralysis to arm.