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Paper TuD06.5

Sanchez Secades, Luis Alonso (Laboratoire d'Informatique, de Robotique et de Microélectronique), LE, Minh-Quyen (INSA de Lyon), Liu, Chao (LIRMM (UMR5506), CNRS, France), Zemiti, Nabil (Université Montpellier II - CNRS UMR 5506), Poignet, Philippe (LIRMM UMR 5506 CNRS UM2)

The Impact of Interaction Model on Stability and Transparency in Bilateral Teleoperation for Medical Applications

Scheduled for presentation during the Regular Session "Needle Steering" (TuD06), Tuesday, May 15, 2012, 17:30−17:45, Meeting Room 6 (Oya'te)

2012 IEEE International Conference on Robotics and Automation, May 14-18, 2012, RiverCentre, Saint Paul, Minnesota, USA

This information is tentative and subject to change. Compiled on December 13, 2017

Keywords Medical Robots and Systems, Teleoperation, Force Control

Abstract

An analysis of stability and transparency of a force feedback teleoperation system for cutting-edge robotic surgery is presented. Previous works in teleoperated robotic surgery do not consider the real behavior of the environment, which was supposed to be only elastic. However, new surgical procedures in which the environment dynamics plays a crucial role start emerging as a result of technological progress. In robotic assisted beating-heart surgery, for instance, the dynamics of the contact between surgical tools and soft tissues has an impact not only in the performance of the force control task but also in the performance of the teleoperation control scheme in terms of transparency and stability. Therefore, a more realistic description of the environment has to be adopted in order to safely operate during robot-patient interaction. For this purpose, a viscoelastic contact model is introduced into the bilateral teleoperation scheme, and a performance study is provided. The obtained results show the advantages of the selected approach when targeting teleoperated surgical interventions in which the interaction dynamics has become a significant issue.

 

 

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