Patent ID: 6451010
Filing Date: 2002-09-17
Classification: A61B,G02B

Abstract:
A handpiece for receiving a beam of laser radiation from a solid-state laser via an articulated arm and projecting the radiation onto biological tissue for making an incision therein, the laser beam having a beam quality defined by a value M2, the handpiece comprising:an arrangement at a proximal end of the handpiece for attaching the handpiece to the articulated arm for receiving the laser radiation therefrom; an optical system within the handpiece for projecting the received radiation; a probe at a distal end of the handpiece for contacting the tissue being treated, thereby establishing a fixed working distance between the optical system and tissue being treated; and said optical system being adjustable for selectively varying the size of a spot of laser radiation projected thereby on the tissue at said fixed working distance from a minimum value to a maximum value and arranged such that the size of any selected spot is about the same at any value of M2 between about 1.0 and 15.0.