First, the location of the tourniquet should be as far as possible by the distal limb, distance from the wound 5cm, and avoid the joint adjacent parts. If the tourniquet is placed directly at the root of the limb without clearing the bleeding site, can cause a wide range of limb ischemia; Secondly, the pressure of tourniquet should be properly mastered, that is, the tourniquet can not be too loose, also can not be too tight, to be able to stop bleeding, it is best to stop the bleeding under the cushion, such as dressing, to reduce the direct pressure on local tissue. A wider tourniquet should be used as far as possible. For slightly narrower (around 3cm) The tourniquet should overlap the body around the limb (reaching the width of 10cm) to reduce the pressure required for hemostasis. It must be noted that the use of fine substitutes, such as wire, wire, string, etc. for tourniquet use.
The shorter the use time of tourniquet is safer, it is generally considered that the risk of limb ischemia within 2h is less, such as more than 6h, it is easy to induce fascial gap syndrome, and even cause amputation.