A hands-on-robot for accurate placement of pedicle screws

T. Ortmaier, H. Weiss, U. Hagn, M. Grebenstein, M. Nicki, A. Albu-Schäffer, C. Ott, S. Jörg, R. Konietschke, Luc Le-Tien, G. Hirzinger

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

63 Scopus citations

Abstract

This paper presents a novel system for accurate placement of pedicle screws. The system consists of a new light-weight (<10 kg), kinematically redundant, and fully torque controlled robot. Additionally, the pose of the robot tool-center point is tracked by an optical navigation system, serving as an external reference source. Therefore, it is possible to measure and to compensate deviations between the intraoperative and the preoperatively planned pose. The robotic arm itself is impedance controlled. This allows for a new intuitive manmachine-interface as the joint units are equipped with torque sensors: the robot can be moved just by pulling/pushing its structure. The surgeon has full control of the robot at every step of the intervention. The hand-eye-coordination problems known from manual pedicle screw placement can be omitted.

Original languageEnglish
Title of host publicationProceedings 2006 IEEE International Conference on Robotics and Automation, ICRA 2006
Pages4179-4186
Number of pages8
DOIs
StatePublished - 2006
Externally publishedYes
Event2006 IEEE International Conference on Robotics and Automation, ICRA 2006 - Orlando, FL, United States
Duration: 15 May 200619 May 2006

Publication series

NameProceedings - IEEE International Conference on Robotics and Automation
Volume2006
ISSN (Print)1050-4729

Conference

Conference2006 IEEE International Conference on Robotics and Automation, ICRA 2006
Country/TerritoryUnited States
CityOrlando, FL
Period15/05/0619/05/06

Keywords

  • Hands on robotics
  • Impedance control
  • Navigation
  • Pedicle screw
  • Robotic surgery
  • Soft robotics

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