Optic nerve clamp for optic nerve injury model

Abstract

The invention discloses an optic nerve clamp for an optic nerve injury model, and belongs to the field of clamping devices. The clamp comprises two strip-shaped rigid clamping pieces which are completely symmetrical in structure, wherein each clamping piece comprises a root portion, a middle portion and a tip portion; the root portions of the two clamping pieces are welded together; the middle portions of the two clamping pieces are force application areas; force is applied to enable the clamp to conduct clamping; and the tip portions are in a separated state when the clamp is not stressed, and the tail ends of the tip portions are bent. The clamp is characterized in that three holes are correspondingly formed in each of the middle portions of the two clamping pieces in the deformation direction of the clamping pieces when the clamping pieces receive an applied force and conduct clamping; a screw rod and a screw cap are arranged in each hole; when the screw rods and the screw caps arein threaded connection, both the heads of the screw rods and the screw caps are located on the outer sides of the two clamping pieces; and the clamp clamps an optic nerve through screwing-in of the screw caps on the screw rods. The clamp has the advantages of stable clamping, high reliability, capability of conducting quantitative injury on optic nerves and convenience in operation by a user.

Description

technical field [0001] The invention belongs to the field of clamping devices. Background technique [0002] Traumatic optic neuropathy, also known as traumatic optic nerve injury, is a lesion that causes severe visual impairment due to eye or head trauma, causing vision loss, color vision disturbance, visual field defect, or even complete loss of vision, including direct traumatic optic neuropathy and The latter is more common in indirect traumatic optic neuropathy. Regarding the study of animal models, some scholars at home and abroad have done this work. Establish the experimental animals used to include rabbits, rats, mice, guinea pigs, cats, etc. There are many ways to establish animal models: (1) the animal model of optic nerve damage caused by the clamping method. This method is to expose the optic nerve by surgical incision. The optic nerve is injured by clamping the optic nerve; its biggest disadvantage is that the degree of injury cannot be quantified; in pursuit...

AI Technical Summary

Problems solved by technology

Establish the experimental animals used to include rabbits, rats, mice, guinea pigs, cats, etc. There are many ways to establish animal models: (1) the animal model of optic nerve damage caused by the clamping method. This method is to expose the optic nerve by surgical incision. The optic nerve is injured by clamping the optic nerve; its biggest disadvantage is that the degree of injury cannot be quantified; in pursuit of building a safe and effective optic nerve injury model, the researchers hope to build an animal model of clamping the optic nerve injury by improving the previous experimental methods , Through previous experiments, the basic steps of the experiment have been mastered. The outstanding problem is the need for a clamping instrument that can quantitatively damage the optic nerve.

In the prior art, there is no clamp with quantitative force,

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