The surgical stapling apparatus includes a handle assembly, an elongated body extending distally from the handle assembly, and an articulation mechanism for articulating a tool assembly. The articulation mechanism includes a first gear rotatably mounted on a transmission shaft and configured to engage...http://www.google.fr/patents/US8006887?utm_source=gb-gplus-shareBrevet US8006887 - Surgical stapling apparatus with powered articulation
Surgical stapling apparatus with powered articulation
