A reusable endoscopic surgical instrument includes a tool assembly and a detachable handle. The tool assembly consists of an outer sleeve to which a surgical jaw assembly such as scissors or graspers is mounted. An inner extension is mounted inside the sleeve and is longitudinally translatable with respect...http://www.google.es/patents/US5928255?utm_source=gb-gplus-sharePatente US5928255 - Reusable endoscopic surgical instrument
