Foldable portable first-aid external fixation bracket for bone fracture

Abstract

The invention relates to a foldable portable first-aid external fixation bracket for bone fracture, which comprises an external liner, wherein an air bag is arranged on the external liner; the air bag can be inflated, and a plurality of bulges are formed on the surface of the air bag after the air bag is inflated; multiple sets of foldable connecting rods arrayed in parallel are arranged between the air bag and the external liner; each set of connecting rods comprises a plurality of sleeves; a sleeve core capable of sliding into the sleeves is arranged between each two sleeves; a guide rope which is fixed with the sleeve cores of each set of connecting rods and is used for sliding the sleeve cores is penetrated through the interiors of the sleeve cores and the sleeves of each set of connecting rods; pulling handles are arranged at the two ends of the external liner; lacings are arranged on the two sides of the external liner. The foldable portable first-aid external fixation bracket for bone fracture is foldable and portable, can be contained in a knapsack or haversack, is convenient to carry and is especially fit for field first-aid fixation for outdoor limb fracture.

Description

technical field [0001] The invention belongs to the technical field of orthopedic on-site emergency medical appliances, in particular to a foldable portable fracture emergency external fixation bracket. Background technique [0002] With the development of social industrialization, the incidence of limb fractures caused by construction and production, traffic accidents, major geological disasters, etc. has gradually increased, especially the unstable fractures of the long bones of the lower limbs caused by high-energy injuries, which often lead to peripheral blood vessels and nerves. injury, and even endanger the life of the patient. The purpose of first aid for fractures is to use the simplest and most effective method to save lives, protect affected limbs, and evacuate them quickly so that they can be properly treated as soon as possible. Therefore, reliable external fixation brackets or splints must be used to temporarily fix the fracture during on-site rescue and evacua...

AI Technical Summary

Problems solved by technology

[0008] Chinese utility model patent CN202313853U201120451095.0 "an orthopedic external fixator" uses a fixing belt to connect several small splints lined with sponge strips to surround and fix limb fractures. The advantage is that the degree of tightness can be adjusted, but the fixing effect is not good. Reliable, and the overall length of the splint cannot be shortened, making it inconvenient to carry

[0009] The "single-operated small splint external fixation belt" mentioned in Chinese utility model patent CN201260718Y uses long cotton strips, thin sponge pads, Velcro and other materials to connect several small splints. Although it has good portability, its The mechanical strength is lower than that of rigid external fixation splints or brackets, and the fixation effect for comminuted fractures of the lower limbs caused by severe trauma is not ideal, and it is easy to cause secondary injuries during evacuation

[0010] At present, the external fixation brackets involved in the emergency treatment of fractures are generally large in size, and the length and width cannot be shortened, especially in the field, which is very inconvenient to carry.

[0011] These fracture external fixation brackets also have a common problem, that is, the splint that acts as a fixation is in direct contact with the limb without a buffer layer. As the bleeding at the fracture end gradually increases, the tissue edema increases, and the limb continues to swell, it is easy to appear that the fixation is too tight. question

In the lower leg, there is an osteofascial compartment composed of bone, interosseous membrane, intermuscular septum, and deep fascia. Trauma fracture hematoma and tissue edema may cause an increase in the contents of the osteofascial compartment. Fixing the phenomenon of excessive local compression can easily increase the pressure in the osteofascial chamber > 55mmHg, squeeze and occlude the small arteries supplying the muscles, resulting in a vicious cycle of ischemia-edema-ischemia, causing muscle ischemia and necrosis, and eventually Lead to the occurrence of compartment syndrome, seriously affect the function of the affected limb, and even cause the patient's life-threatening

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