Cochlear Dummy Electrodes for Insertion Training and Research Purposes: Fabrication, Mechanical Characterization, and Experimental Validation

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dc.identifier.uri http://dx.doi.org/10.15488/29
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/47
dc.contributor.author Kobler, Jan-Philipp
dc.contributor.author Dhanasingh, Anandhan
dc.contributor.author Kiran, Raphael
dc.contributor.author Jolly, Claude
dc.contributor.author Ortmaier, Tobias
dc.date.accessioned 2015-08-06T15:07:00Z
dc.date.available 2015-08-06T15:07:00Z
dc.date.issued 2015
dc.identifier.citation Kobler, Jan-Philipp; Dhanasingh, Anandhan; Kiran, Raphael; Jolly, Claude; Ortmaier, Tobias: Cochlear Dummy Electrodes for Insertion Training and Research Purposes: Fabrication, Mechanical Characterization, and Experimental Validation. In: BioMed Research International 2015 (2015), Nr. 5. DOI: http://dx.doi.org/10.1155/2015/574209
dc.description.abstract To develop skills sufficient for hearing preservation cochlear implant surgery, surgeons need to performseveral electrode insertion trials in ex vivo temporal bones, thereby consuming relatively expensive electrode carriers. The objectives of this study were to evaluate the insertion characteristics of cochlear electrodes in a plastic scala tympani model and to fabricate radio opaque polymer filament dummy electrodes of equivalent mechanical properties. In addition, this study should aid the design and development of new cochlear electrodes. Automated insertion force measurement is a new technique to reproducibly analyze and evaluate the insertion dynamics and mechanical characteristics of an electrode. Mechanical properties of MED-EL’s FLEX28, FLEX24, and FLEX20 electrodes were assessed with the help of an automated insertion tool. Statistical analysis of the overall mechanical behavior of the electrodes and factors influencing the insertion force are discussed. Radio opaque dummy electrodes of comparable characteristics were fabricated based on insertion force measurements. The platinum-iridium wires were replaced by polymer filament to provide sufficient stiffness to the electrodes and to eradicate the metallic artifacts in X-ray and computed tomography (CT) images. These low-cost dummy electrodes are cheap alternatives for surgical training and for in vitro, ex vivo, and in vivo research purposes. eng
dc.description.sponsorship DFG
dc.language.iso eng eng
dc.publisher New York [u.a.] : Hindawi Publishing Corporation
dc.rights CC BY 3.0
dc.rights.uri http://creativecommons.org/licenses/by/3.0/
dc.subject Otolaryngology eng
dc.subject Cochlear implant eng
dc.subject surgery eng
dc.subject cochlear implant surgery eng
dc.subject cochlear electrodes eng
dc.subject Electrodes eng
dc.subject Cochlear Implantat ger
dc.subject Hals-Nasen-Ohren-Heilkunde ger
dc.subject Chirurgie ger
dc.subject Elekroden ger
dc.subject.classification Hals-Nasen-Ohren-Chirurgie ger
dc.subject.classification Cochlear-Implantat ger
dc.subject.classification Elektrode ger
dc.subject.ddc 610 | Medizin, Gesundheit ger
dc.title Cochlear Dummy Electrodes for Insertion Training and Research Purposes: Fabrication, Mechanical Characterization, and Experimental Validation ger
dc.type article ger
dc.type Text
dc.relation.essn 2314-6141
dc.relation.issn 2314-6133
dc.relation.doi http://dx.doi.org/10.1155/2015/574209
dc.description.version publishedVersion
tib.accessRights frei zug�nglich ger


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