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High-precision injury device for animal experiment

An animal experiment, high-precision technology, applied in the field of medical research equipment, can solve problems such as poor repeatability, and achieve strong repeatability.

Inactive Publication Date: 2015-02-25
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem they all have in common is poor repeatability
Therefore, it is very meaningful to establish a reproducible injury model and a model that can simplify the injury factors, and all the devices currently used can only establish a model of one injury form

Method used

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  • High-precision injury device for animal experiment
  • High-precision injury device for animal experiment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] High-precision injury device for animal experiments, including at least: rail sleeve 1, method code connecting rod 2, method code 3 and cylindrical percussion bar 4, one end of the rail sleeve 1 has a sleeve male thread connecting end 6, and method code connection One end of the rod 2 has a screw connection end 7 of the code connecting rod. The screw connection end 7 of the code connecting rod is screwed with the cylindrical impact rod. The code 3 is sleeved on the connecting rod 2 of the code. The code 3 is a magnetic code. , Code 3 and cylindrical percussion bar 4 are cylindrical structures, Code 3 and cylindrical percussion bar 4 have the same outer diameter, and the outer diameter of Code 3 and cylindrical percussion bar 4 match the diameter of the inner cylinder of the guide sleeve 1. , Make the code 3 and the cylindrical striker 4 slide in the guide sleeve 1; a coil 11 is connected to the outer sleeve of the guide sleeve 1, and the coil 11 is electrically connected ...

Embodiment 2

[0019] Such as figure 1 As shown, the high-precision injury device for animal experiments includes at least: a rail sleeve 1, a law code connecting rod 2, a law code 3 and a cylindrical percussion bar 4. One end of the rail sleeve 1 has a sleeve male threaded connection end 6. The law code connecting rod 2 has a screw connection end 7 of the law code connecting rod at one end, and the screw connection end 7 of the law code connection rod is threadedly connected with the cylindrical impact rod. The law code 3 is sleeved on the law code connecting rod 2, and the code 3 is Magnetic code, code 3 and cylindrical percussion bar 4 are cylindrical structures, code 3 and cylindrical percussion bar 4 have the same outer diameter, and the outer diameter of code 3 and cylindrical percussion bar 4 are the same as the inner diameter of guide sleeve 1. The diameter of the cylinder is matched to make the code 3 and the cylindrical striker 4 slide in the guide sleeve 1. A coil 11 is connected t...

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Abstract

The invention discloses a high-precision injury device for animal experiment. The device at least comprises a guide rail sleeve, a weight connecting rod, a weight and a cylindrical collision bar, wherein a sleeve external thread connecting end is arranged at one end of the guide rail sleeve, a thread connecting end for the weight connecting rod is arranged at one end of the weight connecting rod, the thread connecting end for the weight connecting rod is in threaded connection with the cylindrical collision bar, the weight is sleeved on the weight connecting rod, the weight is a magnetic weight, the weight and the cylindrical collision bar are of cylindrical structures, the weight and the cylindrical collision bar are the same in outside diameter, the outside diameters of the weight and the cylindrical collision bar are matched with the diameter of the inner cylinder of the guide rail sleeve so that the weight and the cylindrical collision bar can slide in the guide rail sleeve; and a coil is sleeved outside the guide rail sleeve, the coil is electrically connected with the output end of an alternating drive source in a control unit, and the control unit controls the output signal of the alternating drive source to generate a magnetic field so as to obtain different gravities. The high-precision injury device can create extrusion or collision injury models with high repeatability according to the experiment demands.

Description

Technical field [0001] The invention belongs to the field of medical research equipment, in particular to a high-precision injury device for animal experiments. Background technique [0002] So far, there is no recognized and acceptable treatment plan for spinal cord injury (Fehlings, Perrin, 2006), and spinal cord injury and repair have always been a focus of research. Research on spinal cord injury must have a suitable model, and a suitable spinal cord injury model is conducive to spinal cord injury research. [0003] In in vitro studies, various models of spinal cord injury have been established, and rats are the most commonly used animals to establish models. For different experimental purposes, using the tip of a knife to cause very slight damage to the local spinal cord, or damage a specific bundle, such as the corticospinal tract; there are also complete transections of the spinal cord, and some methods are used to detect the complete transection of the spinal cord. But in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61D1/00
Inventor 沈学锋骆文静王键郑刚柯涛陈景元鞠躬
Owner FOURTH MILITARY MEDICAL UNIVERSITY