A surgical instrument including a shaft, an end effector, and a joint, wherein the end effector can be moved relative to the shaft about the joint. In various embodiments, the joint can include a cover configured to be positioned intermediate the end effector and the shaft. In at least one embodiment,...http://www.google.de/patents/US7798386?utm_source=gb-gplus-sharePatent US7798386 - Surgical instrument articulation joint cover
