Stem cell cryogenic storage device with high internal space utilization rate

Abstract

The invention discloses a stem cell cryogenic storage device with a high internal space utilization rate. The device comprises a tank. An annular heat insulating plate is arranged in the side wall ofthe tank. One side, close to the annular heat insulating plate, in the side wall of the tank is provided with an annular liquid nitrogen storage tank. One side of the outer part of the tank is provided with a PLC controller. A rectangular discharge groove is arranged in one side wall, far away from the PLC controller, of the tank. A motor box is arranged in the middle of the lower side of the tank. A servo motor is arranged in the middle in the motor box. Through two placement plates in the middle of a screw and partition plates uniformly distributed at the same angle on the upper side of theplacement plates, the inner space utilization rate of the storage device is greatly improved. The annular heat insulating plate is arranged in the side of the tank. Through cooperation of a sealing plunger and a liquid nitrogen feeding hole and cooperation of a rectangular sealing plug and the rectangular discharge groove, the heat insulation effect is improved.

Description

technical field [0001] The invention relates to the technical field of low-temperature storage equipment for stem cells, in particular to a low-temperature storage equipment for stem cells with high internal space utilization. Background technique [0002] Most of the existing low-temperature storage devices are stored in the form of liquid nitrogen tanks. In the field of biomedicine, stem cells can be placed in liquid nitrogen tanks for long-term active storage. When needed, they can be used after thawing and rewarming. The patent No. 201620716173.8 discloses a low-temperature storage device for stem cells. An external rotation system and an adiabatic transmission shaft are installed at the middle of the top of the outer container. The adiabatic transmission shaft is connected to the external rotation system. There is a thermal insulation layer, and a sample rotating tray is installed in the inner tank, and the center of the sample rotating tray is connected with the heat-i...

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Problems solved by technology

[0002] Most of the existing low-temperature storage devices are stored in the form of liquid nitrogen tanks. In the field of biomedicine, stem cells can be placed in liquid nitrogen tanks for long-term active storage. When needed, they can be used after thawing and rewarming. The patent No. 201620716173.8 discloses a low-temperature storage device for stem cells. An external rotation system and an adiabatic transmission shaft are installed at the middle of the top of the outer container. The adiabatic transmission shaft is connected to the external rotation system. There is a thermal insulation layer, and a sample rotating tray is installed in the inner tank, and the center of the sample rotating tray is connected with the heat-insulating transmission shaft. Bellows are installed between the placement ports, but during the use of the above patents, the utilization rate of the internal space of the storage device is not high, the heat insulation effect is not good, and it is not convenient to take and place the stem cell storage dish

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