| 主权项 |
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 to which 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 of the ultrasonic transducer; a peak judging section configured to detect a peak of the ultrasonic impedance value on the basis of detection results of changes with time of the ultrasonic impedance value; an ultrasonic control section, on the basis of the fact that the peak is detected by the peak judging section, which is configured to stop an output of the vibration generating electric power from the electric power source, or which is configured to output the vibration generating electric power from the electric power source in a second ultrasonic output mode where incision performance provided by the ultrasonic vibration in the treatment section becomes smaller than that in a first ultrasonic output mode before a detection point at which the peak is detected; and a high-frequency control section which is configured to output the high-frequency electric power from the electric power source in a second high-frequency output mode where incision performance provided by a high-frequency current flowing between the probe electrode portion and the jaw electrode portion becomes higher than that in a first high-frequency output mode before the detection point, on the basis of the fact that the peak is detected by the peak judging section. |
