FIELD: biotechnology.
SUBSTANCE: super-quick cooling device for biological samples to cryogenic temperatures using electric linear reciprocating motion includes a linear electric actuator situated in a zone with ambient temperature, comprising coaxially arranged fixed inductor and a movable armature, providing (by means of guide pin) paused movement of the container with a biological sample, a cooling vessel made of thermally insulating material, the front wall of which contains a passage opening for the container, and an internal nozzle with a spray at the end providing a directed flow of liquid cryogen refrigerant with jets acting on the container with a biological sample, a heating device adjacent to the cooling vessel, and a sealed vessel with liquid cryogenic refrigerant, in the upper part of which there is a valve releasing the excess pressure and connected to the cooling vessel by means of a thermally insulated pipe.
EFFECT: increased rate of biological sample cooling.
8 cl, 30 dwg
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