Laser beam irradiation apparatus of laser treatment device

Abstract

Abstract PURPOSE:To perform effective laser treatment by enlarging an irradiation range by one laser irradiation head, by successively scanning the surface area on the affected part in an X-Y axis direction by the irradiation spot of laser beam reflected from the laser beam reflecting mirror arranged on the way of the beam path between the laser irradiation head and the affected part of a patient. CONSTITUTION:The excitation of the coil 6b on an X-axis side and that of the coil 6d on a Y-axis side are made synchronous and a mirror 5 is moved in the two-dimensional direction of an X-Y axis along with an iron core 6a while shaken around the pivot point of a shaking shaft 7. The irradiation spot P of the laser beam emitted from a laser irradiation head 1 and reflected by the mirror 5 on the way to irradiate the affected part 4a successively scans a square surface region in the X-Y axis direction so as to again return a start point 1 on a moving locus at every cycle T from the start point 1 through points 2, 3, 4,...,5. By this method, the scanning of the surface region of a predetermined range by the laser beam spot in an up-and-down as ell as left-and-right directions (X-Y axis direction) is repeatedly performed. Therefore, even when the affected part 4a extends over a cartain range, correspondence can be taken by one laser irradiation head.

Inventors

• 👤 Hajime Fukao

Bibliographic Details