Cochlear implants (CIs) can restore the perception of sound to individuals with severe to profound sensorineural hearing loss. The implanted component of a CI system is an electrode array inserted into the cochlea where it electrically stimulates the intracochlear nerve. Sound is picked up from the environment by an external microphone, filtered, processed, and then converted to electrical signals which are sent to the electrode array. The traditional surgical approach is invasive. A mastoidectomy is performed, in which a fairly large volume of the mastoid region of the temporal bone (approximately 40 mm × 30 mm × 25 mm) is milled away with a high-speed surgical drill to gain access to the cochlea. Vital anatomical structures such as the facial nerve and chorda tympani are embedded within the bone in this region and must be carefully avoided, making the surgery slow and challenging. Due to the invasiveness, risk, and expense...
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June 2016
Special Section Technical Briefs
Design and Thermal Testing of an Automatic Drill Guide for Less Invasive Cochlear Implantation1
Neal P. Dillon,
Neal P. Dillon
Department of Mechanical Engineering,
Vanderbilt University,
Nashville, TN 37235
Vanderbilt University,
Nashville, TN 37235
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Jason E. Mitchell,
Jason E. Mitchell
Department of Mechanical Engineering,
Vanderbilt University,
Nashville, TN 37235
Vanderbilt University,
Nashville, TN 37235
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M. Geraldine Zuniga,
M. Geraldine Zuniga
Department of Otolaryngology,
Vanderbilt University Medical Center,
Nashville, TN 37235
Vanderbilt University Medical Center,
Nashville, TN 37235
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Robert J. Webster, III,
Robert J. Webster, III
Department of Mechanical Engineering,
Vanderbilt University,
Nashville, TN 37235
Vanderbilt University,
Nashville, TN 37235
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Robert F. Labadie
Robert F. Labadie
Department of Otolaryngology,
Vanderbilt University Medical Center,
Nashville, TN 37235
Vanderbilt University Medical Center,
Nashville, TN 37235
Search for other works by this author on:
Neal P. Dillon
Department of Mechanical Engineering,
Vanderbilt University,
Nashville, TN 37235
Vanderbilt University,
Nashville, TN 37235
Jason E. Mitchell
Department of Mechanical Engineering,
Vanderbilt University,
Nashville, TN 37235
Vanderbilt University,
Nashville, TN 37235
M. Geraldine Zuniga
Department of Otolaryngology,
Vanderbilt University Medical Center,
Nashville, TN 37235
Vanderbilt University Medical Center,
Nashville, TN 37235
Robert J. Webster, III
Department of Mechanical Engineering,
Vanderbilt University,
Nashville, TN 37235
Vanderbilt University,
Nashville, TN 37235
Robert F. Labadie
Department of Otolaryngology,
Vanderbilt University Medical Center,
Nashville, TN 37235
Vanderbilt University Medical Center,
Nashville, TN 37235
DOI: 10.1115/1.4033223
Manuscript received March 1, 2016; final manuscript received March 17, 2016; published online May 12, 2016. Editor: William Durfee.
J. Med. Devices. Jun 2016, 10(2): 020923 (2 pages)
Published Online: May 12, 2016
Article history
Received:
March 1, 2016
Revised:
March 17, 2016
Citation
Dillon, N. P., Mitchell, J. E., Geraldine Zuniga, M., Webster, R. J., III, and Labadie, R. F. (May 12, 2016). "Design and Thermal Testing of an Automatic Drill Guide for Less Invasive Cochlear Implantation." ASME. J. Med. Devices. June 2016; 10(2): 020923. https://doi.org/10.1115/1.4033223
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