System and method for force or torque limit compensation

Abstract

A system and method of force or torque limit compensation includes a surgical instrument for use with a computer-assisted medical device. The surgical instrument includes an end effector located at a distal end of the instrument, a drive unit for operating a degree of freedom of the instrument, a shaft coupled to the drive unit, and one or more drive mechanisms in the shaft for coupling force or torque from the drive unit to the end effector and the articulated wrist. To control the degree of freedom, the instrument is configured to determine a current position of the degree of freedom, determine a force or torque limit compensation based on the current position, alter one or more force or torque limits based on the force or torque limit compensation, and adjust the degree of freedom subject to the one or more force or torque limits.

Dependencies are inferred from the claim text.