A multifunctional support device for fixing and extracting cryopreserved tissue in a liquid nitrogen tank

Abstract

This utility model discloses a multifunctional support device for fixing and extracting cryopreserved tissues in a liquid nitrogen tank, relating to the field of biological specimen preservation technology. It mainly consists of a liquid nitrogen tank, limiting guide rails, an outer frame, a tray, and a lifting rod. The liquid nitrogen tank has an insulating layer to reduce liquid nitrogen evaporation; the limiting guide rails are arranged in a rectangular vertical "L" shape to ensure the stability of the outer frame's sliding; the outer frame has partitions dividing the storage chamber, and a locking plate combined with a spring can fix the tray; the lifting rod and sleeve engage through a J-shaped slot and locking protrusion for easy extraction of the outer frame. Furthermore, the outer frame and the outside of the liquid nitrogen tank are respectively equipped with a first and a second electronic tag for convenient sample information management. This device is easy to operate, effectively protects samples, and improves the practicality and safety of liquid nitrogen tanks in biological specimen preservation.

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