Laser apparatus utilizing marking laser for triggering operative laser
First Claim
Patent Images
1. 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.
1 Assignment
0 Petitions
Accused Products
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.
62 Citations
9 Claims
-
1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification