US Patent 11013563 Drive arrangements for robot-assisted surgical platforms

Various robotic surgical systems are disclosed. A robotic surgical system comprises a first motor; a second motor; and a robotic surgical tool. The robotic surgical tool comprises: a first rotary driver configured to receive a first rotary motion from the first motor; a second rotary driver configured to receive a second rotary motion from the second motor; an output drive; and a shifter configured to selectively couple the first rotary driver and the second rotary driver to the output drive. The first rotary driver and the second rotary driver are configured to concurrently supply torque to the output drive in a high-torque operating state.