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...

Full description

Bibliographic Details
Main Authors: Yavuz Nuri Ertas, Derya Ozpolat, Saime Nur Karasu, Nureddin Ashammakhi
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/13/7/1081
_version_ 1797416956103491584
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.
first_indexed 2024-03-09T06:11:51Z
format Article
id doaj.art-b3ed63e8469c46aca2d8a0d5c333fa66
institution Directory Open Access Journal
issn 2072-666X
language English
last_indexed 2024-03-09T06:11:51Z
publishDate 2022-07-01
publisher MDPI AG
record_format Article
series Micromachines
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
work_keys_str_mv AT yavuznuriertas recentadvancesincochlearimplantelectrodearraydesignparameters
AT deryaozpolat recentadvancesincochlearimplantelectrodearraydesignparameters
AT saimenurkarasu recentadvancesincochlearimplantelectrodearraydesignparameters
AT nureddinashammakhi recentadvancesincochlearimplantelectrodearraydesignparameters