Laser apparatus utilizing marking laser for triggering operative laser
AssigneeOlympus Optical Co., Ltd.
InventorAkira Takano
Life of this patent
Estimating the term…
Abstract
A laser apparatus includes an operating laser oscillator for generating an operating laser beam for medical treatment and a marker laser oscillator for generating a visible laser beam (i.e., marker laser beam) in order to mark a portion of the body cavity to be treated. The marker laser beam is guided coaxial with the operating laser beam to become incident on a laser probe. The marker laser beam is intermittently shielded by a chopper. The shielded marker laser beam is reflected by a reflecting surface of the chopper and is guided to a photosensor. The operating laser oscillator is driven in response to an output signal from the photosensor.
Claims9
A laser apparatus comprising:
- an operating laser oscillator for generating an operating laser beam;
- a marker laser oscillator for generating a visible marker laser beam;
- means for guiding the visible marker laser beam coaxially with the operating laser beam to a laser probe of an endoscope;
- chopping means for shielding and reflecting the visible marker laser beam from said marker laser oscillator in a predetermined direction at a predetermined frequency;
- marker laser beam detecting means for detecting the visible marker laser beam shielded and reflected by said chopping means and for generating a detection signal;
- and
- energizing means for driving said operating laser oscillator in response to the detection signal from said marker laser beam detecting means.
Dependencies are inferred from the claim text.