| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic treating instrument capable of effectively preventing transverse vibration generated at a treating part while preventing diameter enlargement. SOLUTION: This ultrasonic treating instrument 1 is provided with an ultrasonic vibrator unit 3 for generating ultrasonic vibration, and an elongate vibration transmission member 5 with the proximal end connected to the vibrator unit 3 and with the distal end formed with the treating part of asymmetric shape with respect to a center axis. The ultrasonic vibration generated by the vibrator unit 3 is transmitted from the proximal end to the distal end of the vibration transmission member 5. The treating part 30 is provided with an adjusting hole 34 for suppressing transverse vibration by adjusting the generated amount of torque generated when the ultrasonic vibration is transmitted. COPYRIGHT: (C)2005,JPO&NCIPI
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