A

ROBOTIC SURGICAL SYSTEM

Espacenet Family 82016357

Abstract

[0001] The present disclosure relates to a robotic surgical system, comprising: - a robot (1A-1C) holding a surgical tool (3A-3C), the robot comprising a base (10), a flange (12) coupled to the surgical tool and an actuation unit (11) configured to move the flange (12) relative to the base (10); - a robotic carrier arm (2) comprising at least one joint (22A-22G), the carrier arm comprising a flange (23) removably connected to the base (10) of the robot (1A-1C), the carrier arm being configured to maintain position of the robot base (10) in a fixed joint configuration during operation of the robot (1A-1C); - a localization unit configured to determine in real time position of the surgical tool; - a control unit configured to: - determine the position of the surgical tool (3A-3C) based on data received from the localization unit; - carry out a control loop for dynamically compensating elastic deformation of the carrier arm, the control loop comprising, based on a target position of the surgical tool, on a current joint position of the actuation unit, and on the position of the surgical tool, determining at least one command of the actuation unit to achieve the target position.

Inventors 5

  1. Klaus Radermacher Aachen author as filed: Radermacher, Klaus
  2. Matías de la Fuente Klein Aachen author as filed: de la Fuente Klein, Matías
  3. Lukas Theisgen Aachen author as filed: Theisgen, Lukas
  4. Manuel Vossel Aachen author as filed: Vossel, Manuel
  5. de la Fuente, Klein Matías

Inventors are linked to an Aachen author when surname and first name match exactly one author.

Applicants

  • Medos International Sarl
  • Rheinisch-Westfälische Technische Hochschule Aachen RWTH Aachen University
  • Medos Int Sarl

Cited papers 2 in the database

Non-patent literature as cited (5)
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  • - LI, ZHIJUNHUANG, BOYE, ZHIFENGDENG, MINGDIYANG, CHENGUANG: "Physical Human-Robot Interaction of a Robotic Exoskeleton By Admittance Control", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 65, no. 12, 2018, pages 9614 - 9624
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  • - ROOZING WESLEY ET AL: "Comparison of open-loop and closed-loop disturbance observers for series elastic actuators", 2016 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS (IROS), IEEE, 9 October 2016 (2016-10-09), pages 3842 - 3847, XP033011915, DOI: 10.1109/IROS.2016.7759565