| 摘要 |
A tourniquet having a strap and a pressure applying cam. The cam functions as both a buckle, to allow the strap to be tightened about an injured limb, and also as a pressure applicator that can be selectively positioned and applied to a specific arterial pressure point of the limb. The cam is shaped to have an upwardly extending portion which, when reversed in orientation, extends radially inward toward a limb and can be applied to an arterial pressure point to further control bleeding. In operation, the strap is pre-threaded through the cam for storage and preparation for use. In an emergency the tourniquet is first loosely applied to the injured limb and the strap then tightened and secured to the cam to constrict the limb. The strap is then pulled up and over the cam to rotate it approximately 180 degrees so that the cam is urged against the desired pressure point, while also further shortening the overall length of the tourniquet and thereby further increasing the tension of the tourniquet. The strap is then fastened to itself to secure the tourniquet in place until medical assistance is available.
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