Electromyographic driven assisted therapy for hand rehabilitation by robotic orthosis and artificial neural networks

Julian Ramirez, Mariel Alfaro, Isaac Chairez

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

3 Scopus citations

Abstract

This study addressed the design, construction and instrumentation of an active hand orthosis driven by electromyographic (EMG) signals captured over the arm. The EMG signals were classified using a static neural network (SNN) supplied by the momentum learning scheme. The orthosis was actuated with a collection of direct current motor commanded by distributed control strategy based on the so-called twisting controller. The orthosis was interfaced to a computer where a special class of graphic user interface (GUI) was implemented. This GUI contains a sequence of suggested exercises that patient wearing the orthosis must try to develop. The orthosis was implemented and the proposed controller forced the tracking of the reference trajectories supplied by the GUI. The orthosis was evaluated in simulation to adjust the EMG signal classifier as well as the controller gains. A real orthosis was constructed and controlled using the gains obtained at the simulation stage.

Original languageEnglish
Title of host publicationVI Latin American Congress on Biomedical Engineering, CLAIB 2014
EditorsAriel Braidot, Alejandro Hadad
PublisherSpringer Verlag
Pages75-78
Number of pages4
ISBN (Electronic)9783319131160
DOIs
StatePublished - 2015
Event6th Latin American Congress on Biomedical Engineering, CLAIB 2014 - Paraná, Argentina
Duration: 29 Oct 201431 Oct 2014

Publication series

NameIFMBE Proceedings
Volume49
ISSN (Print)1680-0737

Conference

Conference6th Latin American Congress on Biomedical Engineering, CLAIB 2014
Country/TerritoryArgentina
CityParaná
Period29/10/1431/10/14

Keywords

  • Active orthosis
  • Artificial neural networks
  • Electromyographic signals
  • Sliding mode control

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