US Patent 10064621 Articulatable surgical instrument comprising a firing drive

A surgical instrument for treating tissue comprising a shaft, an end effector rotatably coupled to the shaft, and a firing member configured to be moved relative to the end effector is disclosed. The surgical instrument further comprises an articulation member operably coupled with the end effector, wherein the articulation member is selectively engageable with the firing member such that the articulation member is operably engaged with the firing member in an engaged configuration and such that the articulation member is operably disengaged from the firing member in a disengaged configuration, and wherein the firing member is configured to move the articulation member relative to the end effector to articulate the end effector when the articulation member and the firing member are in the engaged configuration.