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Biological sample storage system

A biological sample and storage system technology, applied in the field of low-temperature storage of biological samples, can solve the problem of low quality of stored items, achieve the effect of improving storage quality, avoiding direct contact, and ensuring storage quality

Pending Publication Date: 2018-11-16
PIEDMONT MEDSYST ZHUHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low quality storage items in the gas-phase liquid nitrogen biological storage tank in the prior art, thereby providing a biological sample storage system with high quality storage items

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0069] Such as Figure 1-4 Shown is a specific implementation of a biological sample storage system, including a storage tank, the storage tank includes a tank body with a tank mouth, the tank body includes an inner layer tank body 1, a middle layer tank body 2, an outer layer tank body Tank body 3, the inside of the inner tank body 1 is a biological sample storage area, between the inner layer tank body 1 and the middle layer tank body 2 is a liquid nitrogen storage area, and the outer layer tank body 3 and There is a vacuum area between the intermediate tank bodies 2, and the setting of the vacuum area can isolate the heat transfer between the outside world and the liquid nitrogen storage area. The lid covers the mouth of the tank so that the inside of the inner tank body 1 is a sealed space. The outer wall of the inner tank body 1 is provided with an oxygen-free copper heat conduction grid 6 extending from bottom to top. The inside of the inner tank body 1 is provided wit...

Embodiment 2

[0077] The difference between this embodiment and the above-mentioned embodiment is that, if Figure 5As shown, the liquid nitrogen replenishment system includes a liquid nitrogen replenishment tank 7 and a refrigerator 8, and the refrigerator 8 is sealedly connected to the filling port of the liquid nitrogen replenishment tank 7 and the cold head heat exchanger 81 of the refrigerator 8 goes deep into the In the liquid nitrogen replenishment tank 7, the gas above the liquid nitrogen storage area of ​​the storage tank is connected to the cold head heat exchanger 81 through the first pipeline 9, and the first pipeline 9 is provided with an air inlet Valve 91, the exhaust system includes a second pipeline 10 connecting the liquid nitrogen replenishment tank 7 with the storage tank, and a liquid return valve 101 arranged on the second pipeline 10, the liquid nitrogen An exhaust valve is provided on the pipeline that the nitrogen replenishment tank 7 communicates with the outside w...

Embodiment 3

[0079] The difference between this embodiment and the above-mentioned embodiment is that, if Figure 6 As shown, the liquid nitrogen replenishment system includes a nitrogen production system, and the nitrogen production system includes a liquid nitrogen collection tank 12 and a nitrogen generator 11 arranged at the mouth of the liquid nitrogen collection tank 12, and the liquid nitrogen collection tank 12 is communicated with the liquid nitrogen storage area of ​​the storage tank through the third pipeline 13, the third pipeline 13 is provided with a liquid return valve 131, and the exhaust system includes the liquid nitrogen storage area above the storage tank A fourth pipeline 14 communicating with the outside world, and an exhaust valve 141 arranged on the fourth pipeline 14 . The nitrogen evaporated in the storage tank is discharged through the fourth pipeline 14, and the lost liquid nitrogen is replenished through the nitrogen generator 11, so that the amount of liquid n...

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Abstract

The invention provides a biological sample storage system. The biological sample storage system comprises a storage tank, a cold source and a cover body, wherein the storage tank comprises a tank bodywith a tank opening; the tank body at least comprises an inner layer tank body and an outer layer tank body, wherein the inner portion of the inner layer tank body is a biological sample storage area, a heat insulating area is formed between the inner layer tank body and the outer layer tank body, and a heat conduction layer extending from the bottom to the top is arranged on the outer wall surface of the inner layer tank body; the cold source provides cooling capacity to the heat conduction layer; and the cover body is disposed at the tank opening position to enable the inner portion of theinner layer tank body to be a sealed space. The cold source provides cooling capacity to the heat conduction layer, a biological sample is placed inside the inner layer tank body, the direct contact between the cold source and the biological sample is avoided, the risk of contamination of the biological sample is reduced, the heat insulating zone is formed between the inner layer tank body and theouter layer tank body so as to effectively avoid the loss of cooling capacity, so that the inner portion of the inner layer tank body is kept at a low temperature, and the storage quality of the biological sample is ensured; and the arrangement of the heat conductive layer effectively reduces the temperature gradient inside the tank body, so that the upper and lower surface temperature in the tank body is more uniform, and the storage quality of the biological sample is improved.

Description

technical field [0001] The invention relates to the technical field of low-temperature storage of biological samples, in particular to a biological sample storage system. Background technique [0002] In the field of low-temperature biological sample storage, liquid nitrogen evaporative refrigeration is a relatively common refrigeration method at present, and its advantages are rapid refrigeration and low price. Because of its simple operation, small size, and low cost, the liquid nitrogen Dewar tank is an ideal ultra-low temperature storage device that can quickly cool down in a short period of time. The existing liquid nitrogen storage system vacuumizes the space between the outer and inner walls of the tank, and fills it with insulating materials to isolate the heat exchange between the liquid nitrogen and the external environment, injects liquid nitrogen into the tank, and soaks the preserved biological samples in a bucket in liquid nitrogen. If there are pollutants in...

Claims

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Application Information

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IPC IPC(8): B65D81/38B65D81/18B65D25/04B65D25/02
CPCB65D25/02B65D25/04B65D81/18B65D81/383
Inventor 肖家华
Owner PIEDMONT MEDSYST ZHUHAI CO LTD
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