Abstract: 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.

Abstract: 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.