Non-cranium-drill cranial ridge punching device for big and small mice

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a non-cranium-drill cranial ridge punching device for big and small mice, which mainly aims to solve the problems that when a traditional electric cranium drill is used for craniotomy, the pore diameter is difficult to adjust, the depth is uncontrollable, cerebral concussion can be easily caused due to the craniotomy carried out by the traditional electric cranium drill, and the like. The invention has the technical scheme that the non-cranium-drill cranial ridge punching device for the big and small mice comprises a handle, a fixing sleeve, an adjusting nut, a protection sleeve, a needle body connecting part, a needle body connecting petal, a fixing rod, a threaded rod and a needle body, wherein the needle body connecting part is arranged at the lower end of the handle, the needle body connecting petal is arranged at the lower end of the needle body connecting part, the upper end of the fixing rod is connected with the needle body connecting petal, the lower end of the fixing rod is connected with the upper end of the threaded rod, the lower end of the threaded end is connected with the needle body, the fixing sleeve is sleeved on the needle body connecting part, the adjusting nut and the protection sleeve are arranged on the threaded rod, and the adjusting nut is positioned above the protection sleeve. The non-cranium-drill cranial ridge punching device for the big and small mice, disclosed by the invention, has the advantages that the pore diameter is adjustable, the depth is controllable, the damage is low, and the operation is simple.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a non-cranial drill skull opening device for rats and mice. Background technique [0002] The craniotomy of rats and mice is a necessary operation for intracranial drug administration and neurophysiological experimental records in experimental mice. The traditional method of electric cranial drill craniotomy is not only difficult to adjust the size of the opening of the skull, but also can not control the depth of the electric drill, which may easily lead to intracranial infection and brain tissue damage; at the same time, the electric drill can cause irregular vibration of the mouse head, resulting in intracranial damage. The inevitable damage of nerve cells and nerve fibers will affect the brain function of experimental mice and increase the mortality of mice, which is very unfavorable to the experimental results. Contents of the invention [0003] The ...

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the problems that the craniotomy of rats and mice is difficult to adjust, the depth cannot be controlled, and the brain tissue is easily damaged by using the traditional electric cranial drill. , effective, minimally invasive, controllable aperture, and adjustable depth non-cranial drill skull opening device to reduce brain damage in experimental mice, so as to meet the needs of intracranial drug delivery and neurophysiological recording

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