Olympus Corporation

Olympus Medical Systems Corporation

Mitsubishi Electric Corporation

Shohei Moriwaki

Sadayoshi Takami

Toshifumi Katsuragi

Yoshitaka Honda

Tsuyoshi Hayashida

Gen Kato

Shunsuke Matsui

Kotaro Nakamura

Tetuhiro Fukao

A medical device and a method of operating the same are provided. In a method of operating a medical device for ultrasonic treatment, the medical device including an ultrasonic instrument having a vibration transmission member that vibrates ultrasonically, a power source configured to supply electric energy to the ultrasonic instrument, and a processor including a control unit operably connected to the power source, the method includes: controlling supply of the electric energy to the ultrasonic instrument, obtaining a temperature value related to a temperature of the vibration transmission member, the vibration transmission member being separate from a transducer, and controlling the power source to reduce or stop the supply of electric energy of the power source based on the rate of change of the temperature value.

Medical device and method for controlling the same including discriminating end-of-cut conditions based on temperature

A control device includes: a power source configured to supply a high frequency power to a treatment instrument configured to treat a living tissue; a detecting circuit configured to sequentially detect a phase difference between a voltage and a current of the high frequency power supplied to the treatment instrument; and a processor configured to control operation of the power source, the processor being configured to sequentially calculate a variation of the phase difference detected by the detecting circuit, compare the calculated variation of the phase difference with a first threshold set for a variation of a phase difference, and perform reduction processing to reduce output of the high frequency power to be supplied to the treatment instrument when it is determined that the calculated variation of the phase difference is equal to or smaller than the first threshold.

Control device, treatment system, and control method

Growing community of inventors

Tokyo, Japan

Shohei Moriwaki