Patent attributes
A surgical instrument for use with a robotic system is disclosed. The robotic system comprises a drive assembly and a control unit. The drive assembly is configured to provide rotary output motions to a rotatable member supported by the drive assembly. The surgical instrument comprises an end effector, an elongate shaft assembly, an instrument mounting portion, and a closure system. The effector comprises a closable jaw. The elongate shaft assembly comprises a longitudinal axis, a distal end, and a proximal end comprising a gear segment. The instrument mounting portion comprises a transmission assembly including a rotational gear assembly. The closure system comprises a first portion engaged with the closable jaw to close the closable jaw at a first speed and a second portion engageable with the closable jaw to close the closable jaw at a slower speed than the first speed.