Abstract: A laser surgical apparatus for performing treatment by irradiating a part to be treated by a laser beam is disclosed. This apparatus includes a laser source which emits the treatment laser beam; a multi-articulated arm for delivering the treatment laser beam emitted from the laser source, the arm including a plurality of light delivery pipes, a joint part for jointing the light delivery pipes, the joint part being rotatable with respect to at least one of the pipes jointed by the joint part, a reflection mirror disposed in the joint part; and a surgical instrument is connected to an end of the arm and used for irradiating the treatment laser beam delivered therein through the arm to the treatment part.

Abstract: A disposable hand piece can be attached at the end of a laser beam delivery assembly. The hand piece can be longitudinally tapered and generally wedge-shaped in its width and slightly bent so as to form a tool which can be comfortable grasped by a Dentist for purposes of more accurately controlling the laser beam applied through the laser hand piece. The hand piece can include an internal means to supply fine mist of air and water for cooling of the treated area. The hand piece is constructed of inexpensive plastic materials and is designed to be disposable after a single use.

Abstract: Methods, systems, and apparatus for programmable selective ablating or cutting of a targeted area of a material with a laser, producing a succession of pulses of the generated radiation with an energy level, pulse duration, and repetition rate specified to ablate or cut the material without causing harmful side effects; and concentrating the radiation pulses on the targeted material to a spot sufficiently small to cause ablating or cutting of the material; and means to direct the said spot to cover the programmed selected targeted area of a material.

Abstract: A laser surgical apparatus for performing treatment by irradiating a part to be treated by a laser beam is disclosed. This apparatus includes a laser source which emits the treatment laser beam; a multi-articulated arm for delivering the treatment laser beam emitted from the laser source, the arm including a plurality of light delivery pipes, a joint part for jointing the light delivery pipes, the joint part being rotatable with respect to at least one of the pipes jointed by the joint part, a reflection mirror disposed in the joint part; and a surgical instrument is connected to an end of the arm and used for irradiating the treatment laser beam delivered therein through the arm to the treatment part.