Liquid nitrogen consumption monitoring and reminding method and device suitable for stem cell storage
A stem cell and liquid nitrogen technology, which is applied in the field of stem cell preservation and liquid nitrogen monitoring, can solve problems such as the estimated time of adding liquid nitrogen, insufficient preparation in the early stage, and the inability to preserve stem cells, so as to achieve the effect of ensuring accuracy
Active Publication Date: 2022-01-28
JIANGSU HEZE STEM CELL GENE ENG CO LTD
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Problems solved by technology
Due to changes in environmental factors, the age and condition of the tank, and the frequency of opening the tank, the cycle of adding liquid nitrogen will change accordingly. The staff cannot effectively estimate the time to add liquid nitrogen based on their own experience, resulting in the need to add liquid nitrogen. Insufficient pre-preparation of the staff during the nitrogen period, making the stem cells unable to be preserved in an ideal state
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[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0056] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances ...
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The invention provides a liquid nitrogen consumption monitoring and reminding method and device suitable for stem cell storage. The method comprises the steps of obtaining the number of opening times of a liquid nitrogen tank at each previous preset time point and temperature information of the environment in a previous preset time period based on a switch detection device and a temperature sensor; acquiring a first liquid nitrogen liquid level value at a first preset time point and a second liquid nitrogen liquid level value at a second preset time point in a plurality of previous preset time points based on a liquid level sensor; enabling the processor to obtain a liquid level change value according to the first liquid nitrogen liquid level value and the second liquid nitrogen liquid level value, and obtain a liquid level prediction change rate according to the liquid level change value, the attribute value and the opening frequency and the temperature information at the previous preset time point; calculating a consumable liquid level value based on the current liquid level value and a preset reminding liquid level value, obtaining first consumption time information according to the consumable liquid level value and the liquid level prediction change rate, and if the first consumption time information is smaller than preset consumption time information, outputting monitoring reminding.
Description
technical field [0001] The invention relates to the technical fields of stem cell preservation and liquid nitrogen monitoring, in particular to a liquid nitrogen consumption monitoring and reminding method and device suitable for stem cell storage. Background technique [0002] Stem cells are a class of cells with unlimited or immortal self-renewal capacity, capable of producing at least one type of highly differentiated progeny cells. Stem cells are of great significance to life science and life medicine, but the storage conditions of stem cells are relatively strict, and they need to be refrigerated in a liquid nitrogen tank at -196°C to temporarily stop the life activities of stem cells and preserve their activity before stem cell transplantation . [0003] When the stem cells are refrigerated and stored in a liquid nitrogen tank, the liquid nitrogen will evaporate and volatilize. This volatilization is a normal phenomenon. Generally speaking, the number of days between ...
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Login to View More IPC IPC(8): G05B19/042A01N1/02
CPCG05B19/0423A01N1/0252G05B2219/24215
Inventor 魏昌盛林强王溢文
Owner JIANGSU HEZE STEM CELL GENE ENG CO LTD