Liquid nitrogen cylinder, cryogenic vial storing and fetching device and liquid nitrogen cylinder storing and fetching system

Abstract

The invention discloses a liquid nitrogen cylinder, a cryogenic vial storing and fetching device and a liquid nitrogen cylinder storing and fetching system. The liquid nitrogen cylinder comprises a cylinder body, wherein the cylinder body is provided with a sealed opening; the liquid nitrogen cylinder further comprises a bracket tray; the bracket tray is arranged in the cylinder body; the bracket tray is used for bearing cryogenic baskets; a central shaft is vertical to the bracket tray and is fixedly connected with the bracket tray; a driving component is electrically connected with the central shaft; the driving component is used for driving the central shaft to rotate; and the central shaft is used for driving the cryogenic baskets to rotate through the bracket tray and conveying the cryogenic baskets to the opening. By adopting the liquid nitrogen cylinder, the error rate of manual cryogenic vial selecting is reduced; and meanwhile, safety hazards for operation personnel during a manual bracket tray rotation process are avoided. 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, so that non-target cryogenic vials are prevented from being exposed at environment temperature. The liquid nitrogen cylinder storing and fetching system is applicable to vial picking work for large biological sample banks.

Description

technical field [0001] The invention relates to a liquid nitrogen tank, a freezing tube access device and a liquid nitrogen tank access system. 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] At present, the liquid nitrogen storage tank is a manual structure. When selecting cryotubes, the operator needs to open the tank cover, reach into the tank body and select the target cryotubes. Since there are often many cryotubes stored in a liquid nitrogen tank, manual selection Pipe then needs to spend more time, and the opening of the liquid nitrogen tank of prior art must be big enough, just can be convenient to pick pipe manually. In this way, during the tube picking process, all the cryotubes in the liquid nitrogen tank will...

AI Technical Summary

Problems solved by technology

[0003] At present, the liquid nitrogen storage tank is a manual structure. When selecting cryotubes, the operator needs to open the tank cover and reach into the tank to select the target cryotube. Since there are often many cryotubes stored in a liquid nitrogen tank, manual selection Tubes need to spend more time, and the opening of the liquid nitrogen tank of prior art must be big enough, just can be convenient to pick tube manually

In this way, during the tube picking process, all the cryotubes in the liquid nitrogen tank are exposed to air temperature for a long time, which is extremely harmful to biological samples, and the activity of biological samples may even be destroyed by repeated operations.

In addition, the efficiency of manual pipe picking operation is very low, and the error rate is also high

Moreover, because the temperature of the liquid nitrogen tank and the freezing tube is extremely low, manual picking of the tube poses a great safety hazard to the operator

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