Abstract: A surgical assembly for use with a robotic arm includes an outer housing configured to be selectively coupled to a robotic arm, a power pack disposed within the outer housing, and an electric motor operably coupled to the power pack. The outer housing has a supercapacitor attached to an inner surface of the outer housing. The power pack is configured to non-rotatably couple to a surgical instrument such that the surgical instrument and power pack are configured to rotate together. The supercapacitor is in electric communication with the electric motor and configured to supply a direct current to the electric motor to generate a braking torque during a power loss.

Abstract: A surgical robotic system includes a plurality of magneto sensors for measuring a torque, axial force, angle, position, or speed of various driven members in the surgical robotic system.

Abstract: A surgical robotic assembly includes an instrument drive unit including a housing defining a longitudinal channel, a plurality of motors for performing functions of a surgical instrument, and a designated motor for rotating the instrument drive unit and the surgical instrument when the surgical instrument is attached to the instrument drive unit. The instrument drive unit allows for a top-loading or a side-loading of the surgical instrument thereto.

Abstract: An instrument drive unit for use in a robotic surgical system includes a carriage configured to be coupled to a robotic arm, a plurality of drive shafts rotationally supported in the carriage, a plurality of electric motors, and a plurality of concentric, tubular shafts extending through the plurality of electric motors. Each electric motor includes a stator and a rotor disposed within the stator. Each drive shaft is configured for interfacing with a corresponding driven member of the electromechanical surgical instrument. A rotation of a rotor of an electric motor rotates a corresponding tubular shaft, which, in turn, rotates a corresponding drive shaft to actuate a function of the electromechanical surgical instrument.