Patent ID: 6699238
Filing Date: 2004-03-02
Classification: A61B,A61F

Abstract:
A laser operating system, comprising treatment laser beam projecting means for projecting a treatment laser beam, sighting beam projecting means for projecting a sighting beam, a common delivery unit for projecting said treatment laser beam and sighting beam to an affected site, an optical means for guiding said treatment laser beam from said treatment laser beam projecting means and said sighting beam from said sighting beam projecting means to said delivery unit, said delivery unit comprising a spot diameter adjusting means, wherein said spot diameter adjusting means adjusts a spot diameter of said treatment laser beam to a required value, and the power of said sighting beam projecting means is adjusted in such a manner that the brightness of said sighting beam at said affected site is maintained approximately at a constant level regardless of said adjusting operation of said spot diameter.