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완전 이식형 보청기 기술 평가 기반의 새로운 이식형 음향센서 제안
조진호 ( Jin Ho Cho ),우승탁 ( Seong Tak Woo ),임형규 ( Hyung Gyu Lim ),정의성 ( Eui Sung Jung ),이정현 ( Jyung Hyun Lee ),이승하 ( Seung Ha Lee ),성기웅 ( Ki Woong Seong ) 한국센서학회 2014 센서학회지 Vol.23 No.3
Key components of implantable hearing aids are consist of an acoustic sensor that collect external sound by suppressing the body noise, a signal processor module for compensation algorithm of hearing loss, and a output transducer which has tiny size but have high efficiency, respectively. In the partial implantable hearing aids, technologies of transducer and signal processor are so matured that can be applied not too much difficulty. However, due to the difficulties in implantable acoustic sensor technology, such as minimization of masticatory sound and damage of sensor’s membrane from external impact, practical use of fully implantable hearing aids have not successful so far. In this paper, we have proposed a novel implantable acoustic sensor which has trans-tympanic structure, and is verified that the proposed method can be very useful for fully implantable hearing aids by cadaveric experiments.