A laser light irradiation apparatus used for medical treatment of living tissue. According to a preferred embodiment, the apparatus comprises a probe and a plural number of optical fibers. The optical fibers surround the axis of the probe. Laser light goes through each optical fiber and is applied to...http://www.google.de/patents/US5334206?utm_source=gb-gplus-sharePatent US5334206 - Laser light irradiation apparatus