2013 Fiscal Year Final Research Report
Design of cochlear nerve implant based on the tonotopic organization of the cochlear nerve
| Project/Area Number |
23659789
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Otorhinolaryngology
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
TANAKA Tetsu 東北大学, 大学院医工学研究科, 教授 (40417382)
HIDAKA Hioshi 東北大学, 病院, 講師 (40302103)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 蝸牛神経インプラント / 周波数地図 / 微細電極 |
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| Research Abstract |
In order to propose the ideal design of auditory nerve implant based on the physiological frequency structure of the cochlear nerve, the following three investigations were executed; i.e., (1)physiological examination on the tonotopic organization of the cochlear nerve, (2) morphological study of cochlear nerve, (3)electrophysiological examinations on the electrically evoked auditory responses using the fine bipolar stimulation. Based on the present these investigations, the wrap-like electrode wraps around the cochlear nerve with the short needle insertion electrodes were proposed as a possible design of an electrode for auditory nerve implant.
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