A Vibro-Acoustic Hybrid Implantable Microphone for Middle Ear Hearing Aids and Cochlear Implants
To develop totally implantable middle ear and cochlear implants, a miniature microphone that is surgically easy to implant and has a high sensitivity in a sufficient range of audio frequencies is needed. Of the various implantable acoustic sensors under development, only micro electro-mechanical sys...
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| Format: | Article |
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MDPI AG
2019-03-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/19/5/1117 |
| _version_ | 1817994953050030080 |
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| author | Ki Woong Seong Ha Jun Mun Dong Ho Shin Jong Hoon Kim Hideko Heidi Nakajima Sunil Puria Jin-Ho Cho |
| author_facet | Ki Woong Seong Ha Jun Mun Dong Ho Shin Jong Hoon Kim Hideko Heidi Nakajima Sunil Puria Jin-Ho Cho |
| author_sort | Ki Woong Seong |
| collection | DOAJ |
| description | To develop totally implantable middle ear and cochlear implants, a miniature microphone that is surgically easy to implant and has a high sensitivity in a sufficient range of audio frequencies is needed. Of the various implantable acoustic sensors under development, only micro electro-mechanical system-type acoustic sensors, which attach to the umbo of the tympanic membrane, meet these requirements. We describe a new vibro-acoustic hybrid implantable microphone (VAHIM) that combines acceleration and sound pressure sensors. Each sensor can collect the vibration of the umbo and sound pressure of the middle ear cavity. The fabricated sensor was implanted into a human temporal bone and the noise level and sensitivity were measured. From the experimental results, it is shown that the proposed method is able to provide a wider-frequency band than conventional implantable acoustic sensors. |
| first_indexed | 2024-04-14T01:58:49Z |
| format | Article |
| id | doaj.art-4dca3810e16a46dcb9b76e25dc1d4e3c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T01:58:49Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-4dca3810e16a46dcb9b76e25dc1d4e3c2022-12-22T02:18:53ZengMDPI AGSensors1424-82202019-03-01195111710.3390/s19051117s19051117A Vibro-Acoustic Hybrid Implantable Microphone for Middle Ear Hearing Aids and Cochlear ImplantsKi Woong Seong0Ha Jun Mun1Dong Ho Shin2Jong Hoon Kim3Hideko Heidi Nakajima4Sunil Puria5Jin-Ho Cho6Department of Biomedical Engineering, Kyungpook National University Hospital, 130 Dongdeok-ro, Jung-gu, Daegu 41944, KoreaGraduate School of Electronics Engineering, Kyungpook National University, 80 Daehak-ro, Buk-Gu, Daegu 702-701, KoreaInstitute of Biomedical Engineering Research, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu 41944, KoreaDepartment of Medical & Biological Engineering, Graduate School, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu 41944, KoreaEaton Peabody Laboratory, Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, MA 02114, USAEaton Peabody Laboratory, Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, MA 02114, USAInstitute of Biomedical Engineering Research, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu 41944, KoreaTo develop totally implantable middle ear and cochlear implants, a miniature microphone that is surgically easy to implant and has a high sensitivity in a sufficient range of audio frequencies is needed. Of the various implantable acoustic sensors under development, only micro electro-mechanical system-type acoustic sensors, which attach to the umbo of the tympanic membrane, meet these requirements. We describe a new vibro-acoustic hybrid implantable microphone (VAHIM) that combines acceleration and sound pressure sensors. Each sensor can collect the vibration of the umbo and sound pressure of the middle ear cavity. The fabricated sensor was implanted into a human temporal bone and the noise level and sensitivity were measured. From the experimental results, it is shown that the proposed method is able to provide a wider-frequency band than conventional implantable acoustic sensors.http://www.mdpi.com/1424-8220/19/5/1117implantable microphonehybrid vibro-acoustic sensorelectret condenser microphoneelectret-type acceleration sensorhigh sensitivitywide frequency range |
| spellingShingle | Ki Woong Seong Ha Jun Mun Dong Ho Shin Jong Hoon Kim Hideko Heidi Nakajima Sunil Puria Jin-Ho Cho A Vibro-Acoustic Hybrid Implantable Microphone for Middle Ear Hearing Aids and Cochlear Implants Sensors implantable microphone hybrid vibro-acoustic sensor electret condenser microphone electret-type acceleration sensor high sensitivity wide frequency range |
| title | A Vibro-Acoustic Hybrid Implantable Microphone for Middle Ear Hearing Aids and Cochlear Implants |
| title_full | A Vibro-Acoustic Hybrid Implantable Microphone for Middle Ear Hearing Aids and Cochlear Implants |
| title_fullStr | A Vibro-Acoustic Hybrid Implantable Microphone for Middle Ear Hearing Aids and Cochlear Implants |
| title_full_unstemmed | A Vibro-Acoustic Hybrid Implantable Microphone for Middle Ear Hearing Aids and Cochlear Implants |
| title_short | A Vibro-Acoustic Hybrid Implantable Microphone for Middle Ear Hearing Aids and Cochlear Implants |
| title_sort | vibro acoustic hybrid implantable microphone for middle ear hearing aids and cochlear implants |
| topic | implantable microphone hybrid vibro-acoustic sensor electret condenser microphone electret-type acceleration sensor high sensitivity wide frequency range |
| url | http://www.mdpi.com/1424-8220/19/5/1117 |
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