PROBLEM TO BE SOLVED: To provide an operation device for performing a procedure on a lumen in a body allowing for simple and effective procedure on a lesion tissue.SOLUTION: The operation device for performing a procedure on a lumen in a body, comprises first and second tube members 31 and 32, where first and second clamp-type effectors are respectively provided at respective front ends of the first and second tube members. Operational wires 60, respectively, are inserted into the first and second tube members to connect the clamp-type effectors positioned at the front ends thereof with first and second manipulation handles 51 and 52 positioned at rear ends thereof. The first and second clamp-type effectors are manipulated by moving the operational wires using the first and second manipulation handles in front or rear directions, and electric lines are connected with the first and second clamp-type effectors to pull and elongate a lesion portion such as a mucosal tumor in the body by the first clamp-type effector and to electrothermally incise the lesion tissue from a normal tissue by the second clamp-type effector, or to selectively connect the first and second clamp-type effectors to a stent for thermal treatment placed in a lesion portion in a lumen of the body to electrothermally cauterize the lesion portion.【課題】病変部位組職を電気熱で簡単で効果的に施術する人体内腔施術用処置装置を提供する。【解決手段】先端に第1及び第2やっとこ型イフェクターが設置された第1及び第2管部材31、32が内装設置され、第1及び第2管部材の内部に、先端の第1及び第2やっとこ型イフェクターと後端の第1及び第2操作取っ手51、52がそれぞれ連結される作動ワイヤ60が挿入され、第1及び第2操作取っ手によって作動ワイヤが前後に移動して第1及び第2やっとこ型イフェクターを操作し、第1及び第2やっとこ型イフェクターに電気線が連結され、体内粘膜の腫瘍などの病変部位を第1やっとこ型イフェクターで摘まんで拡大させ、第2やっとこ型イフェクターによって病変組職を正常組職から電気熱で切開施術する、あるいは体内腔の病変部位に設置される熱処理用ステントに第1及び第2やっとこ型イフェクターを選択的に連結して病変部位を電気熱で焼灼処理する。【選択図】図1
