deceleration injury device

Abstract

The invention discloses a deceleration injury attacking device, which comprises a base plate and a sliding plate which is arranged in an inclined mode, wherein the high end of the sliding plate is connected to one end of the base plate by virtue of a lifting structure and the low end of the sliding plate is hinged with the other end of the base plate; the lifting structure comprises an upper screw rod which is tapped in a negative direction and is connected to the sliding plate, and a lower screw rod which is connected to the base plate; the upper screw rod and the lower screw rod are connected by virtue of a regulating nut which is provided with corresponding taps at two ends; a baffle plate and a deceleration plate are arranged at the high end and the low end of the sliding plate; a test car, which is connected to the sliding plate in a sliding mode, is arranged on the sliding plate; and a pressure sensor is arranged on the side, facing the test car, of the deceleration plate. With the structures, the deceleration injury attacking device has the advantages of being broad in simulation range, high in precision and reusable.

Description

technical field [0001] The invention relates to a test device for studying brain trauma, in particular to a deceleration injury injury device. Background technique [0002] Deceleration injury (injury of deceleration) refers to the brain injury caused by the sudden impact of the injured head on an object during movement and stopping. The distribution of deceleration brain injury can occur in both the force point and the hedging part, that is, the impact point injury and the opposite impact injury often occur at the same time. The impact point injury refers to the collision between the brain surface at the point of force and the inner plate of the skull due to temporary deformation of the skull at the point of force or invagination of the fracture, causing damage to the brain tissue below the point of force; The side is the hedging part. As the whole brain moves toward the force side, the bottom surface of the brain at the hedging part rubs against the uneven bone ridges at ...

AI Technical Summary

Problems solved by technology

The advantage of this model is its simple structure and low cost; the disadvantage is its lack of experimental precision and repeatability

[0004] In addition, the Chinese Patent Application No. 200810237275.1 (injury device for experimental research on deceleration injury and method for making a deceleration injury model) discloses another deceleration injury model, which is an animal test product that falls freely from a high place and Hit the chopping board, thereby causing craniocerebral deceleration injury of the animal test product

The advantages of this model are simple structure and low experimental cost. Its disadvantages are: 1. It is not easy to control the falling speed, and the accuracy of the experiment is not good; 2. It is obviously affected by the individual differences of the test products and lacks repeatability.

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