Craniocerebral underwater impact injury experimental device capable of accurately causing injury

Abstract

The invention relates to a craniocerebral underwater impact injury experimental device capable of accurately causing injury. The craniocerebral underwater impact injury experimental device comprises a detonating device, an impact wave generator, a pressure detector, a rat and a head fixator, wherein the detonating device comprises an Nd: YAG laser and a silica fiber; the shock wave generator comprises an explosion cabin and a micro explosion source; the pressure detector comprises a hydrophone, a data line and a digital oscilloscope; the Nd: YAG laser can excite pulse laser to detonate the micro explosion source; the ellipsoidal explosion cabin can reflect shock waves and focus the shock waves on the hippocampus CA1 area on the left side of the rat; and the hydrophone is located on the side wall of the explosion cabin and transmits measured shock wave pressure data to the digital oscilloscope. During an experiment, after the rat is anesthetized, a hole is drilled in the skull and is fixed by the head fixaor; and the head fixator and the explosion cabin are filled with normal saline to avoid energy attenuation. The craniocerebral underwater impact injury experimental device is simple in structure, high in stability, good in repeatability, capable of causing underwater shock wave accurate injury and pure craniocerebral injury, and suitable for underwater medical scientific research experiments such as underwater impact injury.

Description

technical field [0001] The invention belongs to diving medicine, and in particular relates to an experimental device for underwater impact injury of craniocerebral which can accurately injure. Background technique [0002] In modern naval warfare, major changes have taken place in weaponry and combat methods. There are more and more underwater combat personnel, and underwater weapons such as torpedoes, mines, and depth charges are equipped and applied on a large scale. Therefore, the shock waves of underwater explosions cause more and more injuries to personnel in underwater combat positions, which has become a hot spot and difficulty in military medicine in the world. The density of water is 800 times that of air, and it is relatively incompressible. Compared with air shock waves, underwater shock waves have the characteristics of fast propagation speed, long propagation distance and no typical compression zone and sparse zone, so it can cause injury The mechanism and dama...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned shortcomings, the present invention provides an experimental device for accurately causing traumatic underwater trauma to the brain, which not only overcomes the defect that experimental animals cannot breathe normally underwater, but also solves the problem that animal models of explosive trauma are difficult to cause injuries due to a single factor. The problem

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