| Project/Area Number |
26462564
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Otorhinolaryngology
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| Research Institution | Nara Medical University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
細井 裕司 奈良県立医科大学, 医学部, その他 (80094613)
下倉 良太 国立研究開発法人産業技術総合研究所, その他部局等, 研究員 (90455428)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 軟骨伝導 / 補聴器 / 外耳道閉鎖症 / 骨導補聴器 / 伝音難聴 / 聴覚 / 小耳症 / 骨導 |
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| Outline of Final Research Achievements |
In order to improve the benefits of cartilage conduction hearing aids for commercial use, the factors which influence the efficacy of the sound transmission were investigated. As a result, the properties of the transducer, such as size, weight, and shape, influenced the transmission. To prevent the reduction of speech recognition scores due to the frequency specificity change during the transmission, the adjustment of the frequency specificity is necessary and effective. Regarding the fixation style, no difference in functional gains was observed between insertion into the cavity and fixation with a double side tape. Considering the obtained results, hearing aids and fitting methods were improved, and more than 95% of subjects wanted to continue cartilage conduction hearing aids. Based the results, we applied to PMDA, and obtained an approval. Cartilage conduction hearing aids were released in November, 2017.
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