CPC A61B 17/07207 (2013.01) [A61B 2017/2927 (2013.01)] | 19 Claims |
1. A treatment tool, comprising:
an end effector configured to implement treatment of living tissue;
an operation input portion configured to be operated by an operator;
a tubular portion provided along a longitudinal axis of the treatment tool, the tubular portion having a first end and a second end, the first end being connected to the end effector, the second end being provided with a first engagement portion, wherein the first engagement portion is a notch;
a driver configured to move along the longitudinal axis of the treatment tool responsive to operation of the operation input portion by the operator, the driver including a second engagement portion configured to engage with the first engagement portion, wherein the second engagement portion is a projection configured to engage with the notch of the first engagement portion;
a pusher configured to connect the tubular portion and the driver to each other by coming into contact with the tubular portion toward a central axis of the tubular portion in a state where the first engagement portion and the second engagement portion have engaged with each other, wherein the pusher prevents movement of the central axis of the tubular portion to restrict movement of the tubular portion so that the notch of the first engagement portion is not disengaged from the projection of the second engagement portion; and
an ultrasound transducer configured to generate ultrasound vibration, wherein a vibration transmission portion configured to transmit the ultrasound vibration generated by the ultrasound transducer is arranged in the tubular portion and the driver.
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