A constrained optimization approach to virtual fixtures for multi-handed tasks

Ankur Kapoor, Russell H. Taylor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, we have extended the concept of constrained motion control of robots to surgical tasks that require multiple robots. We present virtual fixtures to guide the motion of multiple robots such that spatial and temporal relationship is maintained between them. At the same time, our algorithm keeps the surgeon in the control loop. Moreover, we show that these virtual fixtures allow bimanual tasks to be completed using input for a single robot. That is, the user requires only one hand to cooperatively control multiple robots. This reduces the cognitive load on the surgeon and makes multiple-robot setup for surgery more relevant. We demonstrate this architecture by using an example of manipulating a surgical knot to position it at a target point. Significant improvement is observed in the accuracy when bimanual virtual fixture assistance is provided. Moreover, the accuracy when using a single input from user is similar to the accuracy obtained from bimanual assistance.

Original languageEnglish (US)
Title of host publication2008 IEEE International Conference on Robotics and Automation, ICRA 2008
Pages3401-3406
Number of pages6
DOIs
StatePublished - 2008
Externally publishedYes
Event2008 IEEE International Conference on Robotics and Automation, ICRA 2008 - Pasadena, CA, United States
Duration: May 19 2008May 23 2008

Publication series

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

Other

Other2008 IEEE International Conference on Robotics and Automation, ICRA 2008
CountryUnited States
CityPasadena, CA
Period5/19/085/23/08

ASJC Scopus subject areas

  • Software
  • Control and Systems Engineering
  • Artificial Intelligence
  • Electrical and Electronic Engineering

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