rat tail hanger

Abstract

The invention relates to a tail suspending device for laboratory mice, which comprises a suspension rope and a tail fixing device, wherein the tail fixing device comprises an inner sleeve, an outer sleeve, a compression spring and a conical head, wherein the upper end of the outer sleeve is provided with a sleeve ring, a step is formed in the middle of the inner sleeve, an arc-shaped leaf claw is arranged at the lower part of the inner sleeve, the outer sleeve is mounted on the inner sleeve in a sleeving manner, the compression spring is mounted between the sleeve ring and the step, the conical head is arranged on the arc-shaped leaf claw in a sleeving manner and mounted at the lower part of the outer sleeve, and the outer sleeve is connected with the suspension rope. The tail suspending device has the advantages that the structure design is reasonable, the operation is simple and convenient, the work efficiency is high, the tail of a mouse is fixed firmly and is noninvasive, is prevented from dropping off during a suspension process, the aperture of a tightening-up opening and the tightening-up pressure can be adjusted continuously, and the tail suspending device is not only suitable for suspending rats, but also suitable for suspending mice.

Description

technical field [0001] The invention relates to a device for rat tail suspension experiments in animal behavior experiments. The tail suspension test is an experimental method used to identify whether the experimental mice suffer from depression, but how to hang the experimental mice in the experiment has always been a difficult point. The mouse tail hanger can conveniently clamp the tail of the experimental mouse to be lifted, loosened and taken out, and belongs to the animal experiment tool. Background technique [0002] When performing a tail suspension test on experimental mice to check whether they are suffering from depression, it is necessary to suspend the tail of the mice for six minutes for observation. Tendency to depression. The existing rat tail suspension method mainly uses rope ligation or ordinary clips to directly hang the rat tail. However, because the rat tail is conical, with a thick root and a thin end, it is necessary to fix the suspension rope at th...

AI Technical Summary

Problems solved by technology

If the rope is tied too tightly, or the clip is over-clamped, it will cause: rat tail skin degloving injury, rat tail disconnection, rat tail ischemic necrosis, and the experiment cannot be continued

In addition, the experimental results will be disturbed by the pain of the rat tail

In large-scale animal experiments, the existing method of fixing the mouse tail with a rope ligation is not only time-consuming, but also low in work efficiency

When using ordinary clips, the contact area between the fixed part and the rat tail is small, which can easily cause damage to the rat tail

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