An endoscopic attachment to a surgical laser comprises a hollow endoscopic tube adapted to be coupled at its rear end to the surgical laser, a coupling device including a pivotable reflector in the path of the laser beam transmitted through the endoscopic tube for reflecting same to the working area...http://www.google.es/patents/US4597380?utm_source=gb-gplus-sharePatente US4597380 - Endoscopic attachment to a surgical laser
