Centrifugally layered sample extraction device

Abstract

The invention relates to the technical field of extraction equipment, in particular to a centrifugally layered sample extraction device which comprises a rack, the rack is provided with a first clamping mechanism used for clamping a test tube, and a second clamping mechanism which can move in the vertical direction relative to the rack and is used for clamping an injector body is arranged above the first clamping mechanism; a third clamping mechanism used for clamping the piston rod is arranged above the second clamping mechanism; and the rack is further provided with a first lifting mechanism for driving the second clamping mechanism and the third clamping mechanism to reciprocate in the vertical direction and a second lifting mechanism for driving the third clamping mechanism to reciprocate in the vertical direction. Compared with the prior art, the automatic extracting and adding device has the advantages that the original working mode of manual extracting or adding is replaced, the labor intensity of workers is reduced, the working consistency is ensured, the accuracy of subsequent detection work is ensured, the working efficiency is improved, and full-automatic extracting or adding work is realized.

Description

Technical field [0001] The present invention relates to the field of extraction equipment, and more particularly to a centrifugation layer sample extraction device. Background technique [0002] At present, in the process of blood dilution, it is often necessary to add a diluent to the test tube by manual manual manual manual manual, which cannot be added to the test tube. Due to the addition of a diluent, the amount of dilution is added to the test tube due to human factors. It is also not easy to control, and there is a large difficulty in quantitatively adding diluents. [0003] Further, in the process of extracting blood lymphocytes, it is generally extracted by centrifugation method, by adding a blood sample PBS mixture to a centrifuge tube having lymphocyte separation, the blood sample is as expected to be in the extraction liquid, and the centrifuge tube is made Centrifugation to extract lymphocytes. After the centrifugation, the medical staff will take the supernatant aga...

AI Technical Summary

Problems solved by technology

After centrifugation, the medical staff will extract the supernatant one by one to facilitate repeated centrifugation. If the syringe is inserted too shallow, the supernatant will not be drawn cleanly. If the syringe is inserted too deep, the lower layer of sediment will be sucked together. It is difficult in the existing technology to accurately Layered extraction of lymphocytes

[0004] Therefore, in the field of medical testing, it is often necessary to perform layered extraction or layered addition of the liquid in the sample test tube. However, in the prior art, manual suction or addition through a syringe is used. Due to human factors, Failure to achieve consistency in the extraction or addition work will affect the subsequent test results, and the labor intensity of the test personnel is high, and there is a single work

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