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Storing and taking device for single sample boxes in liquid nitrogen tank

A technology of access device and liquid nitrogen tank, which is applied in the field of low-temperature storage in the medical industry, can solve the problems of repeated freezing and thawing of irrelevant specimens, and achieves the effects of easy search and storage, simple operation and stable structure

Inactive Publication Date: 2015-03-25
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above deficiencies, solve the problem that all specimen samples must be taken out and sorted when storing biological specimens in existing liquid nitrogen tanks, resulting in repeated freezing and thawing of irrelevant specimens, and provide a convenient, safe and accurate method for taking out target organisms. Specimen, storage device that does not affect other unrelated specimens and does not increase its chances of getting out of liquid nitrogen

Method used

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  • Storing and taking device for single sample boxes in liquid nitrogen tank
  • Storing and taking device for single sample boxes in liquid nitrogen tank
  • Storing and taking device for single sample boxes in liquid nitrogen tank

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1: see figure 1 , figure 2 , image 3 and Figure 4 , an access device for a single sample box in a liquid nitrogen tank, comprising a liquid nitrogen tank 1, a storage rack 2 and a pick-up rod, the storage rack 2 is provided with a plurality of square sample boxes 3, without a cover, the sample box 3 is fixed by the fixing rod assembly 4. The fixing rod assembly 4 is arranged on the outer wall of the sample box 3; the front wall of the sample box 3 is evenly distributed with 6 longitudinal semicircular grooves 5, and one groove 5 of each sample box 3 is provided with a Snap ring 6, when a plurality of sample boxes 3 are placed on the storage rack 2, the six snap rings 6 are arranged in a staggered order in the horizontal space; the edge of the partition of the storage rack 2 is provided with a plurality of opening slots 7, and a plurality of openings The groove 7 is set corresponding to the groove 5 of the sample box 3 .

[0026] Described pick-up rod ...

Embodiment 2

[0033] Example 2: see Figure 6 The difference from Embodiment 1 is that a locking slot is provided directly on the upper inner end of the locking piece 15, and the contact fork 12 is movably engaged in the locking slot. The locking piece 15 is approximately triangular, and its upper horizontal end surface has a certain thickness, so that the sample box 3 can be pulled more stably.

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Abstract

The invention relates to a storing and taking device for single sample boxes in a liquid nitrogen tank. The device comprises the liquid nitrogen tank and a storage frame. The storage frame is provided with the sample boxes fixed through fixing rod assemblies. A plurality of vertical grooves are distributed in the front walls of the sample boxes, each groove of each sample box is internally provided with a clamping ring, and when the sample boxes are arranged on the storage frame, the clamping rings are sequentially arranged in the horizontal space in a staggered mode. A plurality of opening slots are formed in the edge of a partition plate of the storage frame and correspond to the grooves of the sample boxes. The device further comprises an object taking rod movably penetrating through the clamping rings. The article taking rod can directly take out the target sample box, and the risks that the unrelated samples are overturned and contaminated and the vitality of the unrelated samples is lowered due to repeated storing and taking and repeated freezing and melting of the unrelated samples on the same storage frame are avoided.

Description

technical field [0001] The invention belongs to the field of low-temperature storage in the medical industry, and in particular relates to an access device for a single sample box in a liquid nitrogen tank. Background technique [0002] Liquid nitrogen cryopreservation is currently the most important method for clinical and laboratory long-term storage of biological specimens, and is often used for long-term storage of bacteria, cells, and tissues. Resuscitating biological specimens when needed can obtain viable biological specimens. However, if the sample is often repeatedly frozen and thawed, the vitality of the biological specimen will be greatly reduced. The existing liquid nitrogen biological specimen access device generally includes a liquid nitrogen tank, a storage rack arranged in the liquid nitrogen tank, a removable sample box and a It consists of a fixed rod assembly that fixes the sample box. When taking a sample, it is necessary to take out the storage rack and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D77/24B65D81/20
Inventor 张军王耘川胡大海樊磊白晓智赵彬李艳贾文斌高建新
Owner FOURTH MILITARY MEDICAL UNIVERSITY