The jaw of the gripping treatment apparatus comprises a jaw electrode portion which is not in contact with the leading edge treatment portion in the state in which the abutting portion abuts against the tip treating portion, and a Joe insulation portion formed from an insulating material at a position away from the abutting portion in the first and second width directions.The insulating opposing surface of the Joe insulation is opposed to the tip treatment portion spaced apart from the distal end treatment portion in the state in which the abutment abuts against the distal end treatment portion, and at least a portion of the insulating opposing surface is formed on the surface of the electrode facing surface The distance from the leading edge treatment portion becomes smaller than the position of the tip.把持処置装置のジョーは、当接部が先端処置部に当接する状態において、前記先端処置部と接触しないジョー電極部と、第１の幅方向及び第２の幅方向について前記当接部から離れた位置に絶縁材料から形成されるジョー絶縁部を備える。前記ジョー絶縁部の絶縁対向表面は、前記当接部が前記先端処置部に当接する前記状態において、前記先端処置部から離間して前記先端処置部に対して対向し、前記絶縁対向表面の少なくとも一部は、電極対向表面のいずれの位置よりも前記先端処置部からの離間距離が小さくなる。
