Electronic program control uniform cooling and freezing device

Abstract

The invention provides an electronic program-controlled const-speed cooling and freezing device. The device is provided with a const-speed cooling and freezing cavity which can be provided with a low-temperature freezing freezer, cavity holes for placing a plurality of cryopreservation pipes are evenly formed in a metal temperature conductivity fixed cavity in the device, a temperature sensor is connected onto an electronic program controller placed outside the low-temperature freezing freezer in the centermost part, the periphery of the temperature temperature conductivity fixed cavity is tightly packed with a circle of metal temperature control covers provided with a small amount of crystalline heating elements and is controlled by the electronic program controller; and the upper part of the device is provided with an insulated seal upper cover which is in hinged connection and is provided with a seal clamp, so that the inner sealing can be guaranteed. After the device is used, different freezing procedures can be set for different cells and biological tissues, and the freezing speed of inner cryopreservation pipes can be exactly controlled, so that the intactness of the frozen cells and the biological tissues can be guaranteed. The device has the beneficial effects of being intelligent and exact in control, thereby avoiding the phenomena of precipitation liquid and / or crystallization and the like in cells and biological samples caused by unreasonable freezing speed, and improving the freezing survival rate of the cells and the biological samples.

Description

Technical field [0001] The invention provides an electronic program controlled uniform temperature cooling and freezing device. Background technique [0002] In the laboratory, many scientific researches and experiments need to freeze experimental samples such as cells, skin tissues, biological samples, etc. The existing technology is to directly put the cryotube containing the experimental samples into the low-temperature freezer for freezing. Or just add an isolation sealing sleeve to reduce the freezing speed. Because different cells and biological tissues require different freezing temperatures and freezing speeds during quick freezing, the freezing speed of direct freezing or just adding an isolation sealing sleeve cannot be controlled. Therefore, the unreasonable freezing speed causes common cell membrane rupture and internal liquid crystallization and other undesirable phenomena, which directly affect the results of the experiment, fail to meet the needs of the experiment,...

AI Technical Summary

Problems solved by technology

[0002] In the laboratory, many scientific researches and experiments need to freeze experimental samples such as cells, skin tissue, biological samples, etc. The existing technology is to directly put the cryopreservation tubes containing experimental samples into a low-temperature freezer for freezing. storage, or just add an isolation seal to reduce the freezing speed, because different cells and biological tissues require different freezing temperatures and freezing speeds for quick freezing preservation, and the freezing speed of direct freezing or only adding an isolation seal is uncontrollable , therefore due to the unreasonable freezing speed, the common bad phenomena such as cell membrane rupture and internal liquid crystallization directly affect the results of the experiment, cannot meet the needs of the experiment, and cause inconvenience to various scientific researches

At present, the existing electronic program cooling instruments on the market need to consume a large amount of liquid nitrogen by using the liquid nitrogen cooling method, and the disadvantages of high price, inconvenient operation, and large floor space affect the application. Therefore, it is simple and fast to develop a method that does not need to use liquid nitrogen. A freezing device that can precisely control the freezing temperature and freezing speed to improve the survival rate of cells and biological samples in scientific research and experiments has become an urgent need at present.

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