Tourniquet with adaptive elasticity

Abstract

The invention discloses a tourniquet with adaptive elasticity. The tourniquet comprises a non-retractable band body and a lock catch for connecting the two ends of the band body, wherein the lock catch comprises a lock body and a buckle body which are matched with each other; the lock body and the buckle body are arranged at the two ends of the band body respectively; the lock catch further comprises a first airbag and a second airbag which are arranged inside the lock body; an inflating port is formed in the lock body; the inflating port is communicated with the first airbag; an air valve isarranged at the inflating port; the tourniquet further comprises a third airbag arranged at one end, near the lock body, of the band body; a slipping lock block is arranged inside the lock body; the buckle body is matched with the slipping lock block so as to connect the two ends of the band body; the first airbag and the second airbag are arranged on the two sides of the slipping lock block separately; the contact area between the first airbag and the slipping lock block is smaller than that between the second airbag and the slipping lock block. The tourniquet has the advantages as follows: the tightness can be automatically adapted during inflation process, and the adjustment is more convenient.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a tourniquet. Background technique [0002] Tourniquet hemostasis is a simple and effective hemostasis method for emergency bleeding in extremities. It achieves the purpose of hemostasis by blocking blood vessels by compressing blood vessels; however, if used improperly or for too long, the tourniquet can cause ischemia and necrosis of distal limbs , causing disability, for this reason, the tourniquet can only be used when the bleeding is severe and cannot be stopped by other methods; the tourniquet is preferably a rubber strip or a rubber tube, and it is not suitable to use inelastic belts such as cloth tapes and wires. Commonly used tourniquets are buckle-type tourniquets. As long as this type of tourniquet is composed of a buckle and a stretchable band, the user can adjust the bleeding position of the patient by using the fixation of the buckle and the flexibility of the str...

AI Technical Summary

Problems solved by technology

[0003] There is also a type of inflatable tourniquet, which is used to inflate the air bag in the tourniquet, so that the air bag expands and compresses the blood vessel to stop bleeding. Because this type of tourniquet uses an air bag, the discomfort on the skin surface after banding is low, and it passes through the air bag. Filling in cooling substances such as ice water can achieve the effect of ice compress and reduce the pain of patients, but the inflation volume of this kind of tourniquet needs to be manually determined, and the limbs of the human body often deform to varying degrees due to different movements. At this time, it is very difficult to accurately grasp the tightness of the tourniquet, and excessive compression of the limbs for a long time will cause poor blood flow under the skin, resulting in numbness and bruising of the patient, and poor blood flow will further swell the skin

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