Mouse cervical vertebra dislocation killing device

Abstract

The invention relates to a mouse cervical vertebra dislocation killing device which comprises a shading box and a displacement generating mechanism. The shading box comprises a fixing clamp, a rail and an upper partition plate. The displacement generating mechanism comprises a turning cover, a groove and a sliding rail; the top of the shading box is connected with a fixing clamp, the rear end of the shading box is provided with an upper partition plate, and the upper partition plate is provided with a downward major arc groove. The top of the displacement generation mechanism is provided with a flip cover, the left and right sides are provided with grooves, and the front end is provided with a lower partition plate. An upward major arc groove is formed in the lower partition plate, a ventilation pipe hole is formed in the left side of the shading box, and the shading box is made of light-proof materials. According to the device, on the premise that the mouse does not need to be in contact with the mouse, the mouse can lose consciousness in a black closed CO2 environment without pain and distress until the mouse dies, cervical vertebra dislocation can instantly die, and the time consumed by animals from losing the consciousness to death is shortened. In addition, an experimenter can kill the mouse conveniently, the phenomenon that the experimenter is injured is effectively avoided, and animal ethics are not violated.

Description

technical field [0001] The invention relates to the field of medical experimental equipment, in particular to a device for killing cervical vertebrae of mice. Background technique [0002] At present, the main methods of killing mice in the laboratory are cervical dislocation, decapitation, beating, acute blood loss, and chemical lethality. The most commonly used method is cervical dislocation, which avoids cruel scenes and is fast and efficient. The essentials of the cervical dislocation method are to pinch the back of the mouse's head with the thumb and index finger of the left hand, and press it down hard, grab the tail of the mouse with the right hand, and pull it backward and upward forcefully, the cervical vertebra can be dislocated and die instantly. First, the cervical dislocation is fast, but the death process is still painful; secondly, if the speed is too slow, it may increase the pain of the mice to be killed, or even the mice do not die, which violates animal et...

AI Technical Summary

Problems solved by technology

First of all, although the cervical dislocation is fast, the death process is still painful; secondly, if the speed is too slow, it may increase the pain of killing the mice, and even the mice do not die, which violates animal ethics

In addition, untrained or unskilled experimenters can easily cause mice to bite back due to improper fixation, which will cause injury to the operator

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