Stereoscopic microsurgery system for depth of field viewing of a surgical procedure internal in the human body, including a head mounted viewing assembly with dual optics, a retractor, and a bundled fiber optic aspiration or suction tubing therebetween. The head mounted viewing assembly includes dual...http://www.google.se/patents/US5039198?utm_source=gb-gplus-sharePatent US5039198 - Stereoscopic microsurgery system
