Document Detail


A method for the control of multigrasp myoelectric prosthetic hands.
MedLine Citation:
PMID:  22180515     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This paper presents the design and preliminary experimental validation of a multigrasp myoelectric controller. The described method enables direct and proportional control of multigrasp prosthetic hand motion among nine characteristic postures using two surface electromyography electrodes. To assess the efficacy of the control method, five nonamputee subjects utilized the multigrasp myoelectric controller to command the motion of a virtual prosthesis between random sequences of target hand postures in a series of experimental trials. For comparison, the same subjects also utilized a data glove, worn on their native hand, to command the motion of the virtual prosthesis for similar sequences of target postures during each trial. The time required to transition from posture to posture and the percentage of correctly completed transitions were evaluated to characterize the ability to control the virtual prosthesis using each method. The average overall transition times across all subjects were found to be 1.49 and 0.81 s for the multigrasp myoelectric controller and the native hand, respectively. The average transition completion rates for both were found to be the same (99.2%). Supplemental videos demonstrate the virtual prosthesis experiments, as well as a preliminary hardware implementation.
Authors:
Skyler Ashton Dalley; Huseyin Atakan Varol; Michael Goldfarb
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2011-12-12
Journal Detail:
Title:  IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society     Volume:  20     ISSN:  1558-0210     ISO Abbreviation:  IEEE Trans Neural Syst Rehabil Eng     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-01-24     Completed Date:  2012-05-21     Revised Date:  2012-05-24    
Medline Journal Info:
Nlm Unique ID:  101097023     Medline TA:  IEEE Trans Neural Syst Rehabil Eng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  58-67     Citation Subset:  IM    
Affiliation:
Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37240, USA. skyler.a.dalley@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Biomechanics
Calibration
Computer Systems
Data Collection
Electrodes
Electromyography / methods*
Electronics
Fingers / physiology
Hand*
Hand Strength / physiology*
Humans
Motion
Muscle Contraction / physiology
Prostheses and Implants*
Prosthesis Design / methods*
User-Computer Interface
Grant Support
ID/Acronym/Agency:
1R21 HD068753-01/HD/NICHD NIH HHS; R21 HD068753/HD/NICHD NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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