Automatic electric shock device for laboratory animal

Abstract

The automatic electric shock device for laboratory animals comprises a feeding mechanism, a conveying mechanism, an electric shock apparatus, a heart rate detecting apparatus, a weighing apparatus, a sorting mechanism, a human-machine interaction module and a single-chip microcomputer control system. The automatic electric shock device for laboratory animals is characterized in that the feeding mechanism, the conveying mechanism and the sorting mechanism are arranged from top to bottom on a pedestal, wherein the feeding mechanism is located over the inlet of the conveying mechanism and the sorting mechanism is located under the outlet of the conveying mechanism; the electric shock apparatus and the heart rate detecting apparatus are disposed from left to right at the conveying mechanism; the weighing apparatus is located under the heart rate detecting apparatus; and the human-machine interaction module is connected with the single-chip microcomputer control system. By adopting an operation method of streamline and combining an electric shock technology, a servo driving technology and a pneumatic technology, the device of the invention is high in automation and safe in operation. The scientificness and reliability of follow-up experiment are improved while the welfare requirements of animals are satisfied.

Description

technical field [0001] The invention relates to the field of medical experimental animal experimental instruments, in particular to a fully automatic electric stunning device for medical experimental animals. Background technique [0002] During animal experiments, the experimental animals (mice, rats, guinea pigs, rabbits, cats, etc.) are usually anesthetized or killed in advance. The methods of anesthetizing and killing experimental animals in the past include: (1) drug injection method: the drug is injected into the animal body by injection to anesthetize or kill the animal. (2) Drug inhalation method: volatile anesthetics or toxic gases enter the body through the respiratory tract and cause anesthesia or death of animals. (3) Air embolism method: the air is injected intravenously to cause hypoxia, causing the animal to suffocate to death. (4) Cervical dislocation method: dislocate the animal's cervical vertebrae with external force, disconnect the spinal cord from the ...

AI Technical Summary

Problems solved by technology

[0003] The problems in the appeal method are as follows: (1) The drug dosage and anesthesia depth of the drug injection method are not easy to grasp

It often occurs that the animal cannot enter anesthesia for a long time due to insufficient dosage or wakes up early in the middle of the experiment, what is more, the animal dies directly due to excessive drug

In addition, studies have shown that anesthetic drugs are neurotoxic to developing mice, rats, monkeys and other experimental animals

(2) The drug inhalation method often uses carbon dioxide gas, ether or chloroform, etc., because ether can burn or explode, and chloroform is also highly toxic, so the experimenter has a certain degree of danger when operating

If the animals are sacrificed with ether, specialized equipment and procedures are required to store and handle the carcasses, adding to the cost of the experiment

(3) The air embolism method can make the experimental animals die quickly, but it is accompanied by convulsions, opisthotonos, dilated pupils, and screaming.

(5) The bloodletting method is complex, time-consuming, and prone to hemolysis

(6) The decapitation method is cruel to implement. If the requirements for the aseptic conditions of animal specimens are high, this method is difficult to meet the aseptic requirements.

Appeal anesthesia and execution methods put animals in a state of pain or injury to varying degrees, which will affect the physiological and biochemical reactions of organs and tissue cells at various stages, thereby reducing the authenticity and accuracy of experimental results

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