Magnetic low-temperature storage device capable of automatically storing and taking samples

Abstract

The invention relates to the field of biological sample storage, in particular to a magnetic low-temperature storage device capable of automatically storing and taking samples. The device comprises a liquid nitrogen tank, a rotary positioning assembly, a storage assembly, a sample storing and taking assembly and a control assembly, the device is used for keeping low temperature in the liquid nitrogen tank through liquid nitrogen, and a storing and taking opening is formed in the liquid nitrogen tank; the three storage discs are arranged in the liquid nitrogen preparation tank, the three storage discs are sequentially arranged in the liquid nitrogen tank at preset intervals from top to bottom, and access notches are formed in the other storage discs except the lowest storage disc in the three storage discs; the storing and taking notch is used for enabling a sample storing and taking assembly to penetrate through the storing disc, the storing disc is used for storing a cryopreservation tube cabin, and cryopreservation tubes are stored in the cryopreservation tube cabin; and a rotary positioning assembly. According to the low-temperature storage device, the different storage discs can rotate, the cryopreservation tube cabins of all layers can be flexibly taken through the notches in the storage discs, the problem caused by the fact that cryopreservation tubes are extracted from a liquid nitrogen tank and then exposed in the whole lifting basket is solved, repeated freezing and thawing of biological samples are avoided, and the cryopreservation efficiency is improved. The low-temperature safety of the biological sample is ensured.

Description

technical field [0001] The present application relates to the field of biological sample storage, and in particular, to a magnetic suction type low-temperature storage device for automatically accessing samples. Background technique [0002] When using liquid nitrogen tanks for cryogenic storage of biological samples, cryogenic tubes, freezing boxes and baskets are usually used for storage. Store the box, and finally put the freezer box into the basket and immerse it in liquid nitrogen for cryogenic storage. When storing or taking out a single cryovial, you first need to take the entire basket out of the liquid nitrogen environment, then find the corresponding freezing box, and finally put the cryovial in or take out the freezing box. The practice of taking the other samples carried in the carrying basket out of the liquid nitrogen environment as a whole makes the samples in the entire carrying basket exposed to the normal temperature environment, which will cause certain d...

AI Technical Summary

Problems solved by technology

[0003] This application provides a low-temperature storage device for automatic storage and retrieval of samples with a magnetic suction type, which can realize independent automatic storage and retrieval of a single cryopreservation tube, and solves the problem of storage ( or extraction) when a single cryopreservation tube exposes the biological samples in multiple cryopreservation tubes in the entire basket to normal temperature

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