Hitachi, Ltd.

Masamoto Takatsuji

Hideyuki Horiuchi

Tamotsu Shimada

Chiaki Shinbo

Akio Kumada

Daizo Tokinaga

Tamotu Simada

Chiaki Shimbo

A surgical equipment for transmitting surgical output power such as laser beam from a hand piece is provided with a pressure sensing element of which resistance changes with the force externally applied to the hand piece so that the pressure sensing element senses an operator holding the hand piece.

Surgical equipment

In a laser surgical equipment consisting of a laser oscillator oscillating a laser output, an optical waveguide connected to the laser oscillator and transmitting the laser output and a hand piece connected to the optical waveguide and radiating the laser output to a diseased part to be radiated, the improvement comprising a detector for detecting the laser output from the hand piece, a comparator for comparing the output of the detector with a predetermined value and a controller for controlling the laser oscillator by the output of the comparator and for setting the laser output of the hand piece to the predetermined value.

Laser surgical equipment

In a laser surgical apparatus having a laser oscillator operable to oscillate to produce a laser beam, and an optical path connected to the laser oscillator for transmission of the laser beam, a hand piece at the fore end of the optical path is equipped with a vibrator element comprised of a piezoelectric transducer, and the vibrator element applies a vibration to the hand piece.

Laser surgical apparatus

Growing community of inventors

Tokyo, Japan

Masamoto Takatsuji