Problem to be solved: to provide an intracavitary central treatment device capable of effective treatment without giving a large physical and monetary load to the patient without craniotomy.The electrode member is a local electrode device having an electrode member inserted into the brain tissue, and the electrode member can be inserted into the vicinity of the focal area or focal area identified in the brain tissue A heating means for heating the tissue of the focus region identified and disposed in the main body of the electrode member, and a temperature detecting means disposed in the main body of the electrode member to measure the temperature of the focal area or the neighborhood region.Diagram
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