A cord blood stem cell storage tank

Abstract

The utility model discloses a kind of umbilical cord blood stem cell storage tanks, including inner tank body, the top outer wall of the inner tank body is fixed with first circular sealing cover by hasp lock, and the axis center of first circular sealing cover is rotatably fixed with rotating stand, the first bevel gear is welded on the top surface of rotating stand, and the top of first bevel gear is engaged driving second bevel gear along vertical direction, the axis center of one side of second bevel gear is connected with micro stepping motor;The utility model realizes sampling by cylindrical sampling pipeline cooperation bellows, without opening overall sealing cover, only need to open sealing plug when sampling, can be inserted sampling tool, and two semicircular sealing gate valves are equipped in cylindrical sampling pipeline, after sampling tool is pulled out, gate valve can be automatically closed, reduce low-temperature gas leakage, simultaneously, spray ring is connected liquid nitrogen containing cavity by communicating capillary, spray head can spray liquid nitrogen in sampling pipeline, maintain sampling passage low temperature, avoid heat into inner tank body.

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