Design of cochlear nerve implant based on the tonotopic organization of the cochlear nerve

为了提出基于耳蜗神经的生理频率结构的听神经植入物的理想设计，进行了以下三项研究：（1）耳蜗神经的音调分布结构的生理学检查;（2）耳蜗神经的形态学研究;（3）电诱发听觉反应的电生理学检查。基于目前的研究，提出了将短针插入电极缠绕在耳蜗神经周围的包裹式电极作为听觉神经植入电极的可能设计。

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.