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Basic study to vibrate stapes through ear drum FO a "contact hearing aid"

通过鼓膜振动镫骨的基础研究 FO“接触式助听器”

基本信息

批准号：
17500373
负责人：
ARAI Yasuko
金额：
$ 2.32万
依托单位：
Tokyo Women's Medical University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17500373/
关键词：
medical welfare use of body function conductive mechanism hearing aid

项目摘要

Elderly people are required to participate in social life because of the increasing population and lack of supporting money for the government. The most frequent problem for them is communicati on difficulty due to presbyacusis. To overcome presbyacusis, hearing aid is indispensable. The use of hearing aid, however, is 1/5 of that in England. Our aim of this study is to improve hearing aid, by introducing sound energy into the inner ear through direct coupling of vibration.We found that direct application of sound via a balloon or a plastic bar gave 10-50dB acoustic gain. A polyethylene tube leaks sound less than silicone soft tube. A hard plastic bar on a diaphragm was better than a thin silicone balloon. The holding system was successfully designed, so that we could determine the properties of the device. The output of this device was analyzed by comparing the sound with the sound with the head phone of an audiometer by ABLB method.Acoustic gain was 50-10dB according to the frequency and the place where the device touched. For a patient with profound mixed type hearing loss, this system is especially benefitable, because this system skips air-bone gaps. For people with mild hearing loss, this system may provide non-closing, no hauling hearing aid.

由于人口的增加和政府缺乏支持资金，老年人需要参与社会生活。他们最常见的问题是由于老年性耳聋造成的沟通困难。要克服老年性耳聋，助听器是必不可少的。然而，助听器的使用率仅为英国的1/5。本研究的目的是通过振动的直接耦合将声能引入内耳来改进助听器。我们发现，通过气球或塑料棒直接施加声音可以获得10- 50 dB的声学增益。聚乙烯管泄漏声音小于硅胶软管。横膈膜上的硬塑料棒比薄的硅胶气球好。夹持系统设计成功，因此我们可以确定该装置的性能。用ABLB法对该装置输出的声音与听力计头戴耳机的声音进行比较分析，根据频率和装置接触的位置，声增益为50- 10 dB。对于重度混合型听力损失的患者，该系统特别有益，因为该系统跳过气骨间隙。对于轻度听力损失的人，该系统可以提供非闭合式、非牵引式助听器。