Patent ID: 6840934

Claim:
A laser treatment apparatus for performing treatment by irradiating a treatment part with a laser beam for treatment, the apparatus including: 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 multi-articulated arm including: first and second light delivery pipes; a joint part for jointing the first and second light delivery pipes, the joint part being rotatable with respect to at least one of the first and second light delivery pipes jointed by the joint part; and a reflection mirror disposed in the joint part; a hand-piece connected to an end of the multi-articulated arm and used for irradiating the treatment laser beam delivered therein through the multi-articulated arm to the treatment part; and a weight balance adjustment unit which adjusts weight balance of the multi-articulated arm, wherein the first light delivery pipe is arranged at a laser source side, the second light delivery pipe is arranged at a hand-piece side and includes plural axially extensible light delivery pipes, and each extensible light delivery pipe includes an outer pipe and an inner pipe. the weight balance adjustment unit includes a balance arm attached to the first and second light delivery pipes and being rotatable around the first light delivery pipe and a balance weight attached to the balance arm so that a distance of the balance weight from the first light delivery pipe is changeable, and the second light delivery pipe is rotatable around the first light delivery pipe with the balance arm.