Refrigerating device

Abstract

A freezing device comprises a bottom box and a containing plate. The bottom box comprises a box body. The box body defines a containing space suitable for containing liquid nitrogen. The containing plate comprises a plate body which is arranged in the containing space and separated from the bottom face of the containing space. And a plurality of condensation grooves are formed on the top surface of the tray body. The condensation tank is suitable for containing a liquid mixture. Wherein the condensation tank is not communicated with the bottom of the containing space, and the liquid mixture contained in the condensation tank can be cooled and solidified under the influence of heat absorption vaporization of the liquid nitrogen contained in the containing space. The condensation tank is not communicated with the bottom of the containing space, and the liquid mixture contained in the condensation tank can be cooled and solidified under the influence of heat absorption vaporization of the liquid nitrogen contained in the containing space, so that the purpose that the liquid mixture is solidified into a specific shape in real time can be achieved.

Description

technical field [0001] The present invention relates to a freezing device, in particular to a freezing device suitable for solidifying a liquid mixture containing an aqueous ethanol solution. Background technique [0002] In recent years, the treatment of malignant cancer with bone metastases and primary musculoskeletal tumors usually involves surgical curettage of tumor cells followed by "cryotherapy" to reduce the probability of tumor recurrence after surgery. In the past, the cryotherapy method used liquid nitrogen with a temperature below minus 196 degrees Celsius (condensation point) to directly contact the surrounding cells at the excision site, causing damage to the cell membrane of the surrounding cells and leading to cell death. However, due to the rapid atomization and flowability of liquid nitrogen, it is easy to cause unclear surgical field of vision, and large-scale necrosis of normal tissue around the excision site, resulting in other complications. However, a...

AI Technical Summary

Problems solved by technology

The existing method of solidifying ethanol is to directly pour the higher-temperature ethanol aqueous solution into the lower-temperature liquid nitrogen and stir to form a solidified ethanol mixture after reaching thermal equilibrium. However, this method will make the ethanol aqueous solution only have Partially solidified, resulting in incomplete curing of ethanol

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