Patent attributes
A surgical system comprising a surgical instrument attachment assembly and a transmission assembly is disclosed. The surgical instrument attachment assembly comprises a shaft and an end effector. The transmission assembly is configured to be operably attached to and detached from a surgical robot, wherein the surgical instrument attachment assembly is configured to be operably attached to and detached from the transmission assembly. The transmission assembly comprises a drive system comprising a drive member movable in a first direction during a drive stroke and a second direction during a return stroke. The transmission assembly further comprises a manually-operated bailout configured to selectively move the drive member in the first and second directions when the transmission assembly is attached to the surgical robot.