基于聚偏氟乙烯的耳蜗内声音检测压电式麦克风：实现完全可植入的人工耳蜗。

1 Department of Materials Science and Engineering, 34968 Korea Advanced Institute of Science and Technology , Daejeon, Republic of Korea.

2 Department of Otolaryngology, Harvard Medical School, 1866 Massachusetts Eye and Ear , Boston, MA, USA.

Trends Hear. 2018 Jan-Dec;22:2331216518774450. doi: 10.1177/2331216518774450.

We report the fabrication and characterization of a prototype polyvinylidene fluoride polymer-based implantable microphone for detecting sound inside gerbil and human cochleae. With the current configuration and amplification, the signal-to-noise ratios were sufficiently high for normally occurring sound pressures and frequencies (ear canal pressures >50-60 dB SPL and 0.1-10 kHz), though 10 to 20 dB poorer than for some hearing aid microphones. These results demonstrate the feasibility of the prototype devices as implantable microphones for the development of totally implantable cochlear implants. For patients, this will improve sound reception by utilizing the outer ear and will improve the use of cochlear implants.

我们报告了一种聚偏二氟乙烯聚合物基植入式麦克风的制作和特性，用于检测沙鼠和人类耳蜗内的声音。在当前的配置和放大条件下，信号噪声比对于正常出现的声压和频率（耳道压力> 50-60 dB SPL 和 0.1-10 kHz）足够高，尽管比一些助听器麦克风差 10 到 20 dB。这些结果表明原型设备作为植入式麦克风用于开发完全植入式人工耳蜗的可行性。对于患者而言，这将通过利用外耳来改善声音接收，并改善人工耳蜗的使用。