Fixing device used for fixing rat testis for injection

Abstract

The invention discloses a fixing device used for fixing the rat testis for injection. The fixing device comprises a positioning tube, wherein one end of the positioning tube is cone-shaped, a bearingtable is arranged at the other end of the positioning tube, a binding part is arranged in the positioning tube, a sliding groove is formed in the bearing table, a propping seat is arranged in the sliding groove, a propping cam is rotationally arranged on the propping seat, a hole seat is arranged on the bearing table, a U-shaped elastic binding arm is arranged on the hole seat in a swinging manner, two free ends of the elastic binding arm are bent to form inserting pins which are inserted into the hole seat, a first positioning groove, a first converging bulge, a second positioning groove, a second converging bulge and a third positioning groove are sequentially formed in the matched surface, attached to the outer wall of the hole seat, of the elastic binding arm, and the second positioning groove is deeper than the first positioning groove and the third positioning groove. The fixing device is simple in overall structure and can fix the rate testis, thereby facilitating cell transplantation tests.

Description

technical field [0001] The invention relates to the technical field of medical experiment instruments, in particular to a fixing device for fixing testicles of rats for injection. Background technique [0002] In the cell transplantation experiment, it is usually necessary to fix the rat testis, and then inject the cells to be transplanted into the testis of the rat through a microinjection needle. However, during the operation, due to the small size of the testicles of rats, it is inconvenient to position the injection and is very sensitive. When stimulated, it is easy to shrink into the groin and affect the injection operation. Therefore, two operators are currently required to perform the testicular injection operation. One operator needs to restrain the rat, and then fix the testis of the rat by hand, and the other operator performs the injection operation, but it is inconvenient for the two operators to cooperate in this operation. Due to the injection, when the testis ...

AI Technical Summary

Problems solved by technology

However, during the operation, due to the small size of the testicles of rats, it is inconvenient to position the injection and is very sensitive. When stimulated, it is easy to shrink into the groin and affect the injection operation. Therefore, two operators are currently required to perform the testicular injection operation. One operator needs to restrain the rat, and then fix the testis of the rat by hand, and the other operator performs the injection operation, but it is inconvenient for the two operators to cooperate in this operation. Due to the injection, when the testis of the rat is restrained , the rat's hind legs will also struggle, which will affect the restraint action of the operator and reduce the test efficiency

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