Patent ID: 9681912
Date: 2017-06-20
CPC Classifications: A61B

Claim:
1. A grasping treatment apparatus comprising: an electric power source configured to output a vibration generating electric power and a high-frequency electric power; an ultrasonic transducer configured to generate an ultrasonic vibration by the vibration generating electric power from the electric power source; a treatment section that includes a probe electrode portion configured to function as an electrode when the high-frequency electric power is supplied, thereto, and which is configured to perform a treatment by use of the ultrasonic vibration generated in the ultrasonic transducer and the high-frequency electric power from the electric power source; a jaw which is openable and closable relative to the treatment section; a jaw electrode portion which is provided to the jaw, and which is configured to function as an electrode different from the probe electrode portion when the high-frequency electric power is supplied thereto; an impedance detecting section configured to detect an ultrasonic impedance value related to the vibration generating electric power; a peak judging section configured to detect a peak of the ultrasonic impedance value based on the ultrasonic impedance value detected by the impedance detecting section; an ultrasonic control section that is configured to stop an output of the vibration generating electric power from the electric power source or configured to switch an output state of the vibration generating electric power from the electric power source from a first ultrasonic output mode to a second ultrasonic output mode when the peak is detected by the peak judging section, an average of a vibration velocity in the treatment section during a predetermined unit time being lower in the second ultrasonic output mode than that in the first ultrasonic output mode; and a high-frequency control section which is configured to switch an output state of the high-frequency electric power from the electric power source from a first high-frequency output mode to a second high-frequency output mode when the peak is detected by the peak judging section, thermal energy generated by a high-frequency current flowing between the probe electrode portion and the jaw electrode portion being higher in the second high-frequency output mode than that in the first high-frequency output mode.