Towards securing the sclera against patient involuntary head movement in robotic retinal surgery

Ali Ebrahimi, Muller Urias, Niravkumar Patel, Changyan He, Russell H. Taylor, Peter Gehlbach, Iulian Iordachita

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

Abstract

Retinal surgery involves manipulating very delicate tissues within the confined area of eyeball. In such demanding practices, patient involuntary head movement might abruptly raise tool-to-eyeball interaction forces which would be detrimental to eye. This study is aimed at implementing different force control strategies and evaluating how they contribute to attaining sclera force safety while patient head drift is present. To simulate patient head movement, a piezoelectric-actuated linear stage is used to produce random motions in a single direction in random time intervals. Having an eye phantom attached to the linear stage then an experienced eye surgeon is asked to manipulate the eye and repeat a mock surgical task both with and without the assist of the Steady-Hand Eye Robot. For the freehand case, warning sounds were provided to the surgeon as auditory feedback to alert him about excessive slclra forces. For the robot-assisted experiments two variants of an adaptive sclera force control and a virtual fixture method were deployed to see how they can maintain eye safety under head drift circumstances. The results indicate that the developed robot control strategies are able to compensate for head drift and keep the sclera forces under safe levels as well as the free hand operation.

Original languageEnglish (US)
Title of host publication2019 28th IEEE International Conference on Robot and Human Interactive Communication, RO-MAN 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728126227
DOIs
StatePublished - Oct 2019
Event28th IEEE International Conference on Robot and Human Interactive Communication, RO-MAN 2019 - New Delhi, India
Duration: Oct 14 2019Oct 18 2019

Publication series

Name2019 28th IEEE International Conference on Robot and Human Interactive Communication, RO-MAN 2019

Conference

Conference28th IEEE International Conference on Robot and Human Interactive Communication, RO-MAN 2019
CountryIndia
CityNew Delhi
Period10/14/1910/18/19

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ASJC Scopus subject areas

  • Artificial Intelligence
  • Human-Computer Interaction
  • Control and Optimization

Cite this

Ebrahimi, A., Urias, M., Patel, N., He, C., Taylor, R. H., Gehlbach, P., & Iordachita, I. (2019). Towards securing the sclera against patient involuntary head movement in robotic retinal surgery. In 2019 28th IEEE International Conference on Robot and Human Interactive Communication, RO-MAN 2019 [8956341] (2019 28th IEEE International Conference on Robot and Human Interactive Communication, RO-MAN 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RO-MAN46459.2019.8956341