Assessment of an implanted bone-conduction hearing aid performance by experiments using human cadavers

Tatsunari Harashima; Makiko Fujii; Takuji Koike; Michihito Aoki; Kyoji Homma; Naohito Hato; Sho Kanzaki

Assessment of an implanted bone-conduction hearing aid performance by experiments using human cadavers

Tatsunari Harashima, Makiko Fujii, Takuji Koike, Michihito Aoki, Kyoji Homma, Naohito Hato, Sho Kanzaki

Department of Otorhinolaryngology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this study, a new subcutaneously implanted bone-conduction hearing aid is proposed. A vibrator unit of the hearing aid consists of two coils and an element made of giant magnetostrictive material (GMM). For the first stage in the development of the new boneconduction hearing aid, fundamental properties of the GMM vibrator were examined. In addition, a prototype transducer was made and installed in cadaver heads, and the performance of the prototype transducer was investigated. The output of the prototype transducer was linearly increased with increasing the input current. The frequency response varied depends on the cadavers. These results suggest that the gain of our hearing aid can be controlled by changing the input current, but individual differences of patients should be considered.

Original language	English
Title of host publication	17th International Congress on Sound and Vibration 2010, ICSV 2010
Pages	17-23
Number of pages	7
Publication status	Published - 2010 Dec 1
Event	17th International Congress on Sound and Vibration 2010, ICSV 2010 - Cairo, Egypt Duration: 2010 Jul 18 → 2010 Jul 22

Publication series

Name	17th International Congress on Sound and Vibration 2010, ICSV 2010
Volume	1

Other

Other	17th International Congress on Sound and Vibration 2010, ICSV 2010
Country/Territory	Egypt
City	Cairo
Period	10/7/18 → 10/7/22

ASJC Scopus subject areas

Acoustics and Ultrasonics

Cite this

Assessment of an implanted bone-conduction hearing aid performance by experiments using human cadavers. / Harashima, Tatsunari; Fujii, Makiko; Koike, Takuji et al.
17th International Congress on Sound and Vibration 2010, ICSV 2010. 2010. p. 17-23 (17th International Congress on Sound and Vibration 2010, ICSV 2010; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Harashima, T, Fujii, M, Koike, T, Aoki, M, Homma, K, Hato, N & Kanzaki, S 2010, Assessment of an implanted bone-conduction hearing aid performance by experiments using human cadavers. in 17th International Congress on Sound and Vibration 2010, ICSV 2010. 17th International Congress on Sound and Vibration 2010, ICSV 2010, vol. 1, pp. 17-23, 17th International Congress on Sound and Vibration 2010, ICSV 2010, Cairo, Egypt, 10/7/18.

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abstract = "In this study, a new subcutaneously implanted bone-conduction hearing aid is proposed. A vibrator unit of the hearing aid consists of two coils and an element made of giant magnetostrictive material (GMM). For the first stage in the development of the new boneconduction hearing aid, fundamental properties of the GMM vibrator were examined. In addition, a prototype transducer was made and installed in cadaver heads, and the performance of the prototype transducer was investigated. The output of the prototype transducer was linearly increased with increasing the input current. The frequency response varied depends on the cadavers. These results suggest that the gain of our hearing aid can be controlled by changing the input current, but individual differences of patients should be considered.",

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AU - Harashima, Tatsunari

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AU - Koike, Takuji

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AU - Homma, Kyoji

AU - Hato, Naohito

AU - Kanzaki, Sho

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N2 - In this study, a new subcutaneously implanted bone-conduction hearing aid is proposed. A vibrator unit of the hearing aid consists of two coils and an element made of giant magnetostrictive material (GMM). For the first stage in the development of the new boneconduction hearing aid, fundamental properties of the GMM vibrator were examined. In addition, a prototype transducer was made and installed in cadaver heads, and the performance of the prototype transducer was investigated. The output of the prototype transducer was linearly increased with increasing the input current. The frequency response varied depends on the cadavers. These results suggest that the gain of our hearing aid can be controlled by changing the input current, but individual differences of patients should be considered.

AB - In this study, a new subcutaneously implanted bone-conduction hearing aid is proposed. A vibrator unit of the hearing aid consists of two coils and an element made of giant magnetostrictive material (GMM). For the first stage in the development of the new boneconduction hearing aid, fundamental properties of the GMM vibrator were examined. In addition, a prototype transducer was made and installed in cadaver heads, and the performance of the prototype transducer was investigated. The output of the prototype transducer was linearly increased with increasing the input current. The frequency response varied depends on the cadavers. These results suggest that the gain of our hearing aid can be controlled by changing the input current, but individual differences of patients should be considered.

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Assessment of an implanted bone-conduction hearing aid performance by experiments using human cadavers

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