2018
DOI: 10.1097/mao.0000000000001647
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An In-Vitro Insertion-Force Study of Magnetically Guided Lateral-Wall Cochlear-Implant Electrode Arrays

Abstract: Hypothesis:Insertion forces can be reduced by magnetically guiding the tip of lateral-wall cochlear-implant electrode arrays during insertion via both cochleostomy and the round window.Background:Steerable electrode arrays have the potential to minimize intracochlear trauma by reducing the severity of contact between the electrode-array tip and the cochlear wall. However, steerable electrode arrays typically have increased stiffness associated with the steering mechanism. In addition, steerable electrode array… Show more

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Cited by 19 publications
(16 citation statements)
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References 46 publications
(50 reference statements)
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“…10) will drastically impact the size of a permanent-magnet MDS, and the allowable current density will drastically impact the size of an electromagnetic MDS. Third, we have determined in our prior work [8] that the required magnetic field can vary substantially based on electrode-array models. Therefore, it may even be necessary to have electrode-array specific MDS models as well.…”
Section: Discussionmentioning
confidence: 99%
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“…10) will drastically impact the size of a permanent-magnet MDS, and the allowable current density will drastically impact the size of an electromagnetic MDS. Third, we have determined in our prior work [8] that the required magnetic field can vary substantially based on electrode-array models. Therefore, it may even be necessary to have electrode-array specific MDS models as well.…”
Section: Discussionmentioning
confidence: 99%
“…The necessary magnetic field to achieve successful guided electrode-array insertions has been determined by our prior work [8]. In that study, Flex-24 electrode arrays provided by MED-EL (Innsbruck, Austria) with a 4.73×10 −5 A·m 2 permanent magnet embedded in the EAT were guided successfully through a plastic scala-tympani phantom [7].…”
Section: Magnetic Modelingmentioning
confidence: 99%
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