Fracture model preparation device for animal experiments

Abstract

The invention relates to a fracture model preparation device for animal experiments. The device comprises a base, a supporting plate, two supporting side columns, a force application mechanism and two supporting sheets, the two supporting side columns are symmetrically fixed to the base, and the supporting plate is horizontally arranged between the two side columns; the force application mechanism is composed of two spring sleeving rods which are vertically fixed onto the supporting plate, two springs of same specification which are arranged on the two spring sleeving rods in a sleeving mode respectively, a weight supporting plate and a force application rod, the force application rod vertically penetrates through the weight supporting plate and is fixed to the weight supporting plate, and the weight supporting plate is arranged on the two spring sleeving rods in a sleeving mode and supported by the springs; the axis of the force application rod and the axes of the two spring sleeving rods are in a same vertical plane, the distances between the force application rod and the two spring sleeving rods are identical, the lower end of the force application rod movably and vertically penetrates through a penetrating hole which is correspondingly formed in the supporting plate, and the two supporting sheets are relatively movably arranged on the base. According to the fracture model preparation device for the animal experiments, production of fracture sites of relatively identical positions is achieved, and the soft tissue wound is reduced to a certain extent.

Description

technical field [0001] The patent of the invention belongs to the field of auxiliary equipment for animal experiments, and specifically relates to the establishment of fracture healing models for animal experiments. Background technique [0002] Fracture is a common clinical disease, which often brings great pain to patients. To study fracture healing and explore the molecular mechanism of fracture healing is of great significance for accelerating fracture healing. The most important prerequisite for the study of fracture healing is the establishment of a standard fracture healing model. By creating highly reproducible fracture defects with the same position, stump activity, and soft tissue damage in the same part of animals in different experimental groups, the position and strength of the fracture are relatively controllable, so as to study the effects of different factors on fracture healing. purpose of influence. Therefore, establishing an animal fracture healing mode...

AI Technical Summary

Problems solved by technology

The internal fixation device is mainly established according to the model proposed by Einhorn in 1984. Although the device can reduce soft tissue damage, the device is relatively complicated.

The external fixation type fixes the target bone outside the body of the experimental animal, but it needs to be installed on the experimental animal all the time, which is costly and affects the normal activities of the animal, and the operation is relatively cumbersome

[0003] To sum up, at present, the devices used to establish fracture healing models in experimental animals at home and abroad need to be individually manufactured, and the production is complicated and cumbersome to use, resulting in low work efficiency.

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