Olympus Medical Systems Corporation

Motomu Nagata

Yoshitaka Fujii

Marina Asahina

Tsubasa Niiyama

An ultrasound treatment tool includes a handle, a vibration transmitting memberthat is formed in an elongated shape, the vibration transmitting member being configured to transmit an ultrasound vibration generated by a vibration generation source, a holderconfigured to hold the vibration transmitting portion, and a rotary knobconfigured to rotate about a longitudinal axis Axof the vibration transmitting portionin accordance with a user operation. The holderand the rotary knobare integrally coupled with each other, and are positioned respectively in a radial direction about the longitudinal axis Axwith respect to the handle. One of the holderand the rotary knobis positioned in a direction along the longitudinal axis Axwith respect to the handle

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Chofu, Japan

Motomu Nagata