Laboratory rat tail cutting blood sampling device

Abstract

The invention relates to the technical field of animal blood sampling equipment and particularly discloses a laboratory rat tail cutting blood sampling device. The laboratory rat tail cutting blood sampling device comprises a latex cover, a detachable glass tube, a conical groove, an air suction hole, a vacuum surrounding wall, an exhaust hole, a bottom adjusting device and a passing hole. According to the laboratory rat tail cutting blood sampling device, the vacuum principle is mainly used, air in a bottle is sucked, so that negative pressure is formed in the bottle, blood can flow out soon under the action of negative pressure, and thus the purpose of carrying out multiple times and a large amount of blood sampling on a laboratory rat is achieved; the blood sampling device is provided with the vacuum surrounding wall so that blood back jetting due to air leakage can be avoided, the height of the bottom of the blood sampling device can be adjusted according to the length of different tails through the bottom adjustor, and the blood sampling device is easy and convenient to use and capable of saving time.

Description

Technical field [0001] The invention relates to the technical field of animal blood sampling equipment, in particular to a blood sampling device for tail-cutting mice. Background technique [0002] Products developed in modern laboratories require some experimental animals to evaluate their safety performance. White mice are one of these types of experimental animals. They have low cost and strong sensitivity, which is conducive to comparison of numbers. Many safety experiments. And these animal experiments mostly focus on collecting blood samples for monitoring. [0003] The existing methods for collecting blood from mice are basically divided into four types: the first is to collect blood from the orbit, that is, to pierce the mouse orbit with a capillary; the second, to collect blood from the tail, that is to use scissors to cut the tail of the mouse to collect blood; the third , Decapitation for blood collection; the fourth type, jugular vein blood collection. [0004] The fir...

AI Technical Summary

Problems solved by technology

[0004] The first kind of orbital blood collection has more blood than the tail blood collection, but improper operation can easily blind the mice; the second tail blood collection can be used for multiple blood collections, but the blood collection time is longer and the blood volume is less

The third type of decapitated blood collection has the largest blood collection volume, but it is not conducive to multiple blood collection

The fourth type of jugular vein blood collection requires very high requirements for operators, and it is not easy for ordinary experimenters to master

[0005] For the second tail blood collection, the existing tail-docking blood collection method has the disadvantages of long blood collection time and low blood collection volume

[0006] Using the existing tail-docking blood collection, because the individual mice are relatively small, the blood vessels are relatively thin, and there is not much blood. If the blood collector needs to collect 200 microliters of blood samples, it will be more difficult, so it is necessary to pat and rub the tail of the mice in advance. Knead to make the blood vessels in the tail of the mice swell, and the collector uses a centrifuge tube to catch the blood samples dripping from the tail of the mice. next blood sample collection

During the blood collection process, the mouse's tail sometimes swayed due to pain, and it was difficult to accurately catch the dripping blood

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