A Detachable Modeling Device for Left/Right Hemitransection of Rat Spinal Cord

Abstract

The invention discloses a detachable rat spinal cord left/right half transaction molding device which is used for carrying out left/right half transaction cutting on rat spinal cord. The device comprises a fixed support and a transaction device, the fixed support comprises a foldable leg, an objective table and a hollow steel tube welded to the objective table, and a clamping groove is formed in the hollow steel tube, and is used for allowing the transaction device to be clamped therein. The transaction device comprises a blade, a steel tube, a spring and a linkage device for controlling the blade. Through the structural design, the fixed support can ensure stability, and the spinal cord portion to be transected can be accurately located through the objective table; the length of the telescopic blade can be automatically adjusted according to the radian of spinal cord, and dividing incompletion caused by different diameters of the spinal cord of different adult rats and the radian of the spinal cord is effectively avoided; besides, the cutting blade can swing within 0 and 90 degrees according to operation needs in the vertical plane by operating a linkage handle, and when the handle is loosened, the blade can be reset to the direction perpendicular to the horizontal plane again.

Description

technical field [0001] The invention relates to the field of rat spinal cord modeling, in particular to a detachable left / right half transection modeling device of rat spinal cord. Background technique [0002] CN202665741U discloses an auxiliary device for dorsal semi-transection of the experimental rat spinal cord, which is seamlessly connected by a fixed needle 1 and an auxiliary device main body 2, and two grooves 3 are welded at the uppermost end of the auxiliary device 2, and a cutting knife is inserted through the groove 3, and the cutting knife The thickness is consistent with the width of the groove 3, and the width of the cutter is equal to the distance between the two steel wire semicircles of the auxiliary device main body 2. Accurate cutting of half and quarter of the spinal cord in rats has been achieved; hemisection and quarter cutting of spinal cord segments can also be performed, with simple structure, easy operation, low cost, and strong functionality; but ...

AI Technical Summary

Problems solved by technology

Accurate cutting of half and quarter of the spinal cord in rats has been achieved; hemisection and quarter cutting of spinal cord segments can also be performed, with simple structure, easy operation, low cost, and strong functionality; but the above-mentioned device requires complete exposure of the spinal cord That is, the dorsal spinous process and the lamina on both sides of the spine can be completely removed before the hemisection can be performed. The trauma is relatively large, which often leads to excessive compression of the spinal cord by the muscles after the hemisection, and because of the radian of the spinal cord itself, it is difficult for the blade to cut to the opposite side of the spinal cord.

CN103263307A discloses a shearer for animal modeling of spinal cord injury, but it has no fixing device, and it is difficult to ensure the consistency of the model only by the stability of both hands

[0003] In view of the above-mentioned defects in the prior art, it is urgent to provide a large-scale sensor that can not only ensure the stability and accurate positioning of the spinal cord to be transected, but also effectively avoid the different diameters of the spinal cord of different adult rats and the incomplete transection caused by the radian of the spinal cord. Mouse spinal cord modeling device

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