Recent Advances in Cochlear Implant Electrode Array Design Parameters
Cochlear implants are neural implant devices that aim to restore hearing in patients with severe sensorineural hearing impairment. Here, the main goal is to successfully place the electrode array in the cochlea to stimulate the auditory nerves through bypassing damaged hair cells. Several electrode...
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MDPI AG
2022-07-01
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Online Access: | https://www.mdpi.com/2072-666X/13/7/1081 |
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author | Yavuz Nuri Ertas Derya Ozpolat Saime Nur Karasu Nureddin Ashammakhi |
author_facet | Yavuz Nuri Ertas Derya Ozpolat Saime Nur Karasu Nureddin Ashammakhi |
author_sort | Yavuz Nuri Ertas |
collection | DOAJ |
description | Cochlear implants are neural implant devices that aim to restore hearing in patients with severe sensorineural hearing impairment. Here, the main goal is to successfully place the electrode array in the cochlea to stimulate the auditory nerves through bypassing damaged hair cells. Several electrode and electrode array parameters affect the success of this technique, but, undoubtedly, the most important one is related to electrodes, which are used for nerve stimulation. In this paper, we provide a comprehensive resource on the electrodes currently being used in cochlear implant devices. Electrode materials, shape, and the effect of spacing between electrodes on the stimulation, stiffness, and flexibility of electrode-carrying arrays are discussed. The use of sensors and the electrical, mechanical, and electrochemical properties of electrode arrays are examined. A large library of preferred electrodes is reviewed, and recent progress in electrode design parameters is analyzed. Finally, the limitations and challenges of the current technology are discussed along with a proposal of future directions in the field. |
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institution | Directory Open Access Journal |
issn | 2072-666X |
language | English |
last_indexed | 2024-03-09T06:11:51Z |
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spelling | doaj.art-b3ed63e8469c46aca2d8a0d5c333fa662023-12-03T11:57:52ZengMDPI AGMicromachines2072-666X2022-07-01137108110.3390/mi13071081Recent Advances in Cochlear Implant Electrode Array Design ParametersYavuz Nuri Ertas0Derya Ozpolat1Saime Nur Karasu2Nureddin Ashammakhi3Department of Biomedical Engineering, Erciyes University, Kayseri 38039, TurkeyDepartment of Biomedical Engineering, Erciyes University, Kayseri 38039, TurkeyDepartment of Biomedical Engineering, Erciyes University, Kayseri 38039, TurkeyInstitute for Quantitative Health Science and Engineering (IQ) and Department of Biomedical Engineering (BME), Michigan State University, East Lansing, MI 48824, USACochlear implants are neural implant devices that aim to restore hearing in patients with severe sensorineural hearing impairment. Here, the main goal is to successfully place the electrode array in the cochlea to stimulate the auditory nerves through bypassing damaged hair cells. Several electrode and electrode array parameters affect the success of this technique, but, undoubtedly, the most important one is related to electrodes, which are used for nerve stimulation. In this paper, we provide a comprehensive resource on the electrodes currently being used in cochlear implant devices. Electrode materials, shape, and the effect of spacing between electrodes on the stimulation, stiffness, and flexibility of electrode-carrying arrays are discussed. The use of sensors and the electrical, mechanical, and electrochemical properties of electrode arrays are examined. A large library of preferred electrodes is reviewed, and recent progress in electrode design parameters is analyzed. Finally, the limitations and challenges of the current technology are discussed along with a proposal of future directions in the field.https://www.mdpi.com/2072-666X/13/7/1081cochlear implantelectrodespiral ganglion cellscochleastimulation |
spellingShingle | Yavuz Nuri Ertas Derya Ozpolat Saime Nur Karasu Nureddin Ashammakhi Recent Advances in Cochlear Implant Electrode Array Design Parameters Micromachines cochlear implant electrode spiral ganglion cells cochlea stimulation |
title | Recent Advances in Cochlear Implant Electrode Array Design Parameters |
title_full | Recent Advances in Cochlear Implant Electrode Array Design Parameters |
title_fullStr | Recent Advances in Cochlear Implant Electrode Array Design Parameters |
title_full_unstemmed | Recent Advances in Cochlear Implant Electrode Array Design Parameters |
title_short | Recent Advances in Cochlear Implant Electrode Array Design Parameters |
title_sort | recent advances in cochlear implant electrode array design parameters |
topic | cochlear implant electrode spiral ganglion cells cochlea stimulation |
url | https://www.mdpi.com/2072-666X/13/7/1081 |
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