Emergency tourniquet

Abstract

The invention relates to a quick emergency tourniquet used for blood transfusion, transfusion, blood drawing and hemostasis in medical rescue and a preparation method and use thereof. The tourniquet comprises two layers. Blood at the trauma is first contacted with outer carbonized hair through medical textile, and the carbonized hair has the hemostatic effect and does not emit heat. An inner zeolite hemostatic material can effectively consolidate hemostasis and instantaneously generated heat can be isolated from the outer carbonized hair without leading to burning of the trauma. The hemostatic material is not directly scattered at the trauma for the convenience of posttreatment of surface of the trauma in hemostasis. The use level of zeolite in the tourniquet is reduced by more than 1/2 that of the zeolite tourniquet, and the tourniquet is lighter, remarkable in effect for hemostasis, in particular massive haemorrhage, and small in side effect, so that cross infection of pathogenic bacteria in the treatment process is avoided, and the deficiencies of current common hemostatic products are overcome. The emergency tourniquet is more suitable for large-scale production and commercial application in medical and medical apparatus industries and the like, and in particular to application at wartime or disaster relief. The emergency tourniquet has a good application prospect as well as remarkable social and economic benefits.

Description

technical field [0001] The present invention relates to technical fields such as medicine and material science, in particular to a hemostatic bandage (or called: medical tourniquet, medical tourniquet, referred to as: tourniquet, hemostatic pack) and its preparation method and application, more specifically Specifically, it relates to a first-aid hemostatic bandage and its preparation method and use, and more specifically relates to a disposable quick-acting hemostatic bandage mainly used for first aid and its preparation method and use. Background technique [0002] 1. Research overview of bleeding and hemostasis [0003] Whether it is peacetime or wartime, after the human body is traumatized, bleeding is often the first to be seen. Blood loss is one of the most important causes of death of the wounded in wartime, and it is also one of the main causes of pre-hospital death from trauma in peacetime. If the bleeding can be stopped in time and effectively, it is very importa...

AI Technical Summary

Problems solved by technology

[0032] 3. Coagulation

[0069] (4) Tourniquet hemostasis: an important means of life-saving when large arteries of extremities bleed, when other hemostatic methods fail to work

[0136] In 2000, Rorbert (Rorbert LW.Tissue adhesive for battle field hemorrhage control[C].ADB209674,2000:1-14.) developed a war wound hemostatic dressing, which consists of three layers: the innermost layer is sprinkled with fibrin Silicone film of dry glue powder, the middle layer is polyurethane foam material, and the outer layer is medical pressure-sensitive adhesive. The purpose is to stop bleeding from ruptured arteries, but the structure is complex and the cost is high, and auxiliary pressure bandaging is still needed to stop bleeding from the arteries.

The disadvantage of this type of material is high cost, which may cause human or animal blood-borne disease infection, inconvenient use, slow hemostasis, and poor hemostatic effect on large blood vessels, etc.

[0166] However, zeolite-based hemostatic materials have three main defects: first, zeolite absorbs water in the blood and at the same time, it will undergo adsorption and exothermic phenomena, which will instantly increase the local temperature, close to 60-70 °C, and easily cause burns at the wound; second, Zeolite powder particles are directly sprinkled on the wound, and coagulate with the blood at the wound after hemostasis, and the zeolite particles are not absorbed. Like any other substance remaining in the tissue, long-term residue will cause chronic inflammation, so debridement is required later. Doctors need to wash out the particles from the wound, which increases the difficulty of wound treatment; third, zeolite has a high density and a large weight per unit volume, making it heavy to carry

The disadvantage is that the hemostatic effect of PHS and Arista needs to be exerted by external pressure, the formed blood clot may fall off, and there is a risk of secondary bleeding, so it is not suitable for hemostasis in blood vessels with high blood pressure

Third, the density is small, the weight per unit volume is large, and it is light to carry

[0279] 2. Failure to comply with Article 12 of Chapter III of the "Measures for the Administration of Hospital Infection" (Decree No. 48 of the Ministry of Health of the People's Republic of China) that "Medical instruments, appliances and articles that touch the skin and mucous membranes must reach the disinfection level; , Blood collection and other invasive medical devices must be used and sterilized" related regulations

However, through literature search, etc., so far, there are no reports on such newer emergency tourniquets and preparation methods thereof.

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