CRYOTHERAPY APPARATUS BY PELTIER MODULE/ELEMENT AND TEMPERATURE CONTROL METHOD FOR CRYOTHERAPY BY PELTIER MODULE/ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a cryotherapy apparatus necrotizing and ablating various types of skin tumors and a lesion part such as a pigmented lesion by controlling the temperature for rapidly cooling and heating an affected part using a Peltier module and to provide a temperature control method therefor.

SOLUTION: The cryotherapy apparatus uses a commercially available Peltier module 1 which is easily manufactured at a low cost compared with a Peltier element difficult to be manufactured. The cryotherapy apparatus manufactured easily and having a relatively large cooling area is thus attained to provide an effect of effectively perform the cryotherapy for the skin. The therapy for improving the necrosis rate of a skin affected part can be effectively performed by repeatedly thawing the frozen affected part and refreezing it. A heat sink 5 is cooled by liquid nitrogen 9 so as to improve the cooling speed of the Peltier module 1, and carbon dioxide filling a clearance part in a double container is sublimated to obtain a vacuum heat insulation effect and reduce the thickness for the heat insulation.

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