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A medical hand tool physical interaction evaluation approach for prototype testing using patient care simulators

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dc.contributor.author Browne, Aleksandra
dc.contributor.author O'Sullivan, Leonard
dc.date.accessioned 2017-04-11T08:23:36Z
dc.date.available 2017-04-11T08:23:36Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10344/5684
dc.description peer-reviewed en_US
dc.description.abstract The purpose of this study was to develop and test a physical ergonomics assessment approach for medical device handles. The method assesses wrist posture and force of exertion simultaneously by task element. Electrogoniometers and EMG sensors were connected through a data acquisition module for synchronization with video recordings of trials. Task analysis of video recordings were performed offline with Observer XT software. Average posture and force data across several repetitions of individual task elements were calculated and presented in a format suitable for informing product designers of specific issues during a test trial. A handle comfort questionnaire is proposed to survey subjective responses. The evaluation approach was applied to an endoscope needle in sampling a biopsy from the stomach wall using a gastrointestinal track simulator with ten physician surrogates. The results showed that for all task elements the wrist was in extension (33 degrees-45 degrees). Peak muscle forces ranged from 28% to 68% MVC across the three muscles studied. Muscle peak forces were above ACGIH HAL maximum threshold limits for four of the seven task elements, and above the action limit for all seven task elements for two muscles. The handle comfort questionnaire data also supported the high muscle force findings, and also on force distribution on the handle due to contact stresses. This combined approach could be used to collect and report detailed early stage ergonomics data from user trials on patient care simulators. The approach is proposed for use by medical device designers at the design stage of new products using prototypes, but it could also be used on existing products with real patients. (C) 2011 Elsevier Ltd and The Ergonomics Society. All rights reserved. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Applied Ergonomics;43 (3), pp. 493-500
dc.relation.uri http://doi.org/10.1016/j.apergo.2011.08.002
dc.rights This is the author’s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics, 2012, 43 (3), pp. 493-500, http://doi.org/10.1016/j.apergo.2011.08.002 en_US
dc.subject medical device design en_US
dc.subject upper limb forces en_US
dc.subject posture en_US
dc.subject integrated measurement en_US
dc.title A medical hand tool physical interaction evaluation approach for prototype testing using patient care simulators en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.date.updated 2017-04-11T08:18:32Z
dc.description.version ACCEPTED
dc.identifier.doi 10.1016/j.apergo.2011.08.002
dc.contributor.sponsor SFI
dc.contributor.sponsor Cybermans project Framework Programme 6
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1387639
dc.internal.copyrightchecked Yes
dc.identifier.journaltitle Applied Ergonomics
dc.description.status peer-reviewed


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