Cryogenic vial storing and fetching device

Abstract

The invention discloses a cryogenic vial storing and fetching device. The cryogenic vial storing and fetching device comprises a frame and a liquid nitrogen cylinder, wherein the liquid nitrogen cylinder is located in the frame; the liquid nitrogen cylinder comprises a cylinder body and a moving mechanism; the cylinder body is provided with a sealed opening; the sealed opening is provided with a first thermal insulation shell; the moving mechanism is arranged in the cylinder body and is used for moving hanging baskets in the liquid nitrogen cylinder to the opening; the cryogenic vial storing and fetching device further comprises a hoisting mechanism, a tray shoveling mechanism and a vial selecting mechanism; the hoisting mechanism is used for hoisting a hanging basket at the opening into the first thermal insulation shell; the tray shoveling mechanism is used for storing or fetching a cryogenic tray from the hanging basket which is hoisted by the hoisting mechanism; and the vial selecting mechanism is used for storing or fetching a cryogenic vial from the cryogenic tray which is fetched by the tray shoveling mechanism. By adopting the cryogenic vial storing and fetching device, the process for selecting a single target cryogenic vial for biological samples is realized; and during the whole selecting process, the cryogenic vials are all in a liquid nitrogen environment, and non-target cryogenic vials are prevented from being exposed at environment temperature, so that the activity of the biological samples is ensured.

Description

technical field [0001] The invention relates to a freezing tube access device. Background technique [0002] The deep cryogenic biological sample bank is an important basic equipment for research in the fields of medicine and biology. The low temperature storage of liquid nitrogen can keep biological tissues such as blood, stem cells and immune cells alive for a long time. [0003] The liquid nitrogen storage tank in the prior art is a manual structure. When taking out the cryopreservation tube, it is necessary to manually turn the tray inside the liquid nitrogen tank, turn the target cryopreservation basket to the opening, manually lift the cryopreservation basket, and take out a certain layer of the cryopreservation basket cryopreservation plate, and finally select the target cryopreservation tube on the cryopreservation plate. This method of operation can no longer meet the growing field of biological sample storage: first of all, it is extremely harmful to biological sa...

AI Technical Summary

Problems solved by technology

This method of operation can no longer meet the growing field of biological sample storage: first of all, it is extremely harmful to biological samples. When lifting the cryopreservation basket, the cryopreservation tubes that do not need to be picked will be exposed to the ambient temperature, and repeated operations will destroy them. The activity of biological samples; secondly, the efficiency of manual operation is very poor, and the error rate is high; thirdly, the internal temperature of the liquid nitrogen storage container can reach a minimum of -196°C, and manual picking of tubes poses a great safety hazard to operators

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