Hochfrequenzbehandlungswerkzeug und Mukosemembran-Abtragungsverfahren mit dem Hochfrequenzbehandlungswerkzeug

摘要

A high frequency treatment tool comprises: a flexible sheath; a treatment tool main body comprising a flexible cord and an electrode, provided inside the flexible sheath; a stopper member attached inside the flexible sheath that disposes its front end face at almost the same position as a front end of the flexible sheath to form a front end reference face; an insertion hole formed to penetrate the stopper member, in which the electrode member is to be inserted; an operating section that reciprocates the electrode member between a state that the electrode member is stuck out from the front end reference face and a state that the electrode member is withdrawn into the insertion hole; a restricting member provided around a connecting portion between the flexible cord and the electrode member; and a fluid channel provided at the stopper member, for making a fluid to flow out from the front end face.