| 摘要 |
A procedure of positioning a treatment part at various sites on an organ is facilitated, and the positioning thereof can be stably maintained for treatment with accurate positioning. A treatment instrument includes a rigid rod-shaped insertion section having a treatment part at a distal end thereof and a manipulating section secured to a proximal end of the insertion section and gripped and manipulated by an operator. The insertion section includes a main body extending in a straight line, a first curved portion disposed at a distal end of the main body and curved in one direction with respect to the main body, and a second curved portion disposed on a distal side of the first curved portion and curved in a direction opposite to the direction in which the first curved portion is curved. The treatment part is inclined with respect to the longitudinal axis of the main body.
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