PROBLEM TO BE SOLVED: To make an insertion portion of an EMG probe to be inserted into an anus disposable. An insertion part that can be inserted into an anus and a protrusion that protrudes outside the anus without being inserted into the anus even when the insertion part is inserted into the anus are provided, and the insertion part and the protrusion are a continuous integral type. Yes, both the insertion part and the protruding part are equipped with electrodes, both electrodes are continuous, a connecting tool for connecting to an external device can be detachably connected, and by removing the connecting tool from the protruding part, the used The probe was made disposable. The insertion part and the protruding part may be detachable detachable types. In that case, the electrode of the insertion part and the electrode of the projection part are connected so as to be able to conduct when the insertion part and the projection part are mounted. [Selection diagram]【課題】 筋電計用プローブの、肛門に挿入される挿入部を使い捨て可能とする。【解決手段】 肛門に差し込み可能な挿入部と、挿入部が肛門に挿入されても肛門に差し込まれることなく肛門の外に突出する突出部を備え、挿入部と突出部は連続する一体型であり、挿入部と突出部は共に電極を備えており、両電極は連続しており、外部機器と連結する連結具が脱着可能に連結でき、突出部から連結具を取り外すことにより、使用済みのプローブを使い捨て可能とした。挿入部と突出部は脱着可能な分離型でもよい。その場合は、挿入部の電極と突出部の電極は、挿入部と突出部の装着時に導通可能に連結されるようにした。【選択図】 図１
