Centrifuge tube with double-layer structure

Abstract

The invention relates to a centrifuge tube with a double-layer structure. The centrifuge tube comprises an inner pipe and an outer pipe, the inner pipe is provided with a first internal cavity; the outer pipe is provided with a second inner cavity; the outer pipe is sleeved outside the inner pipe; an annular sealing ring is arranged between the outer pipe and the inner pipe, the annular sealing ring is fixed to the outer pipe and used for achieving sliding sealing, the inner pipe is provided with a communicating hole used for communicating the first inner cavity with the second inner cavity, the outer pipe is provided with a sealing piece used for sealing the communicating hole, and the outer pipe is used for moving from a first position to a second position relative to the inner pipe; theinvention provides the centrifugal tube with the double-layer structure, the supernatant can be conveniently and safely separated without pollution after the centrifugation is completed, and the supernatant can be effectively prevented from being dumped to disturb the sample gathered on the lower layer so as to pour out the precious and rare cell components along with the supernatant, and more importantly, the separated supernatant can be effectively stored and isolated so as to effectively prevent the biological pollution and effectively eliminate the biological safety hidden danger.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a centrifuge tube with a double-layer structure. Background technique [0002] Centrifuge tube is a kind of test tube used for centrifugation. It is mainly divided into three types: conical centrifuge tube, flat bottom centrifuge tube and round bottom centrifuge tube. Among them, conical centrifuge tube is the most used. In the medical field, centrifuge tube is usually used The separation and preparation of biological samples, that is, the biological sample suspension can be placed in a centrifuge tube and rotated at high speed under the drive of a rotating device. Due to the huge centrifugal force, the suspended tiny particles (such as cell organelles, biomacromolecules) Sedimentation, etc.) settle at a certain speed to achieve separation from the solution; for example, in the field of cytopathology, it is usually necessary to use centrifuge tubes to gather loose cells t...

AI Technical Summary

Problems solved by technology

[0006] The first aspect of the present invention is to solve the problem of safe and pollution-free separation and storage of the supernatant in the centrifuge tube, and provides a centrifuge tube with a double-layer structure, including an inner tube, the inner tube is provided with a first inner cavity and a first opening communicating with the first internal cavity,

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