Novel intracochlear electrode positioner: Effects on electrode position

N. W. Yang, A. V. Hodges, T. J. Balkany

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Spiral ganglion cells, located in the cochlear modiolus, are widely thought to be the neural elements stimulated by cochlear implants (CIs). Positioning CI electrodes adjacent to the modiolus may allow delivery of more focused, discrete fields of electrical stimulation, reducing both current requirements and the channel interaction associated with simultaneous stimulation. In order to provide greater consistency in positioning CI electrodes against the modiolus, Advanced Bionics Corporation has designed a silicone intracochlear positioner that is inserted alongside the electrode. Placed against the outer wall of the scala tympani, it directs the electrode array toward the modiolus. Five fresh-frozen temporal bones were studied to validate enhanced electrode placement. Electrode position was documented with image-enhanced digital fluoroscopy, and the distance to the modiolus was measured with computer-assisted morphometrics. The electrode positioner was highly effective in positioning the electrodes closer to the modiolus (p < .001).

Original languageEnglish
Pages (from-to)18-20
Number of pages3
JournalAnnals of Otology, Rhinology and Laryngology
Volume109
Issue number12 II SUPPL.
StatePublished - Dec 1 2000

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Electrodes
Cochlear Implants
Bionics
Scala Tympani
Spiral Ganglion
Temporal Bone
Fluoroscopy
Cochlea
Silicones
Electric Stimulation

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Yang, N. W., Hodges, A. V., & Balkany, T. J. (2000). Novel intracochlear electrode positioner: Effects on electrode position. Annals of Otology, Rhinology and Laryngology, 109(12 II SUPPL.), 18-20.

Novel intracochlear electrode positioner : Effects on electrode position. / Yang, N. W.; Hodges, A. V.; Balkany, T. J.

In: Annals of Otology, Rhinology and Laryngology, Vol. 109, No. 12 II SUPPL., 01.12.2000, p. 18-20.

Research output: Contribution to journalArticle

Yang, NW, Hodges, AV & Balkany, TJ 2000, 'Novel intracochlear electrode positioner: Effects on electrode position', Annals of Otology, Rhinology and Laryngology, vol. 109, no. 12 II SUPPL., pp. 18-20.
Yang, N. W. ; Hodges, A. V. ; Balkany, T. J. / Novel intracochlear electrode positioner : Effects on electrode position. In: Annals of Otology, Rhinology and Laryngology. 2000 ; Vol. 109, No. 12 II SUPPL. pp. 18-20.
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