A medical and surgical laser probe comprised of a quartz optical fiber and a laser rod member optically connected thereto which is made of an artificial saphire and has a tapered portion so as to emit the incident laser beam from the tip end of the rod member without leaking it out from the tapered face....http://www.google.de/patents/US4693244?utm_source=gb-gplus-sharePatent US4693244 - Medical and surgical laser probe I
