Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Measurement of transmitted vibration to stapes and tympanic membrane by DFMT's vibration in implantable middle ear hearing devices

중이 이식형 보청기에서 DFMT의 진동에 의한 등골 및 고막 방향으로 전달되는 진동력 측정

  • Lee, Myoung-Won (Graduate School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Seong, Ki-Woong (Graduate School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Lim, Hyung-Gyu (Graduate School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Kim, Min-Woo (Graduate School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Jung, Eui-Sung (Graduate School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Lee, Jang-Woo (Graduate School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Kim, Dong-Wook (Graduate School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Lee, Jyung-Hyun (Department of Biomedical Engineering, Kyungpook National University Hospital) ;
  • Lee, Sang-Heun (Otolaryngology, School of Medicine, Kyungpook National University) ;
  • Lee, Kyu-Yup (Otolaryngology, School of Medicine, Kyungpook National University) ;
  • Cho, Jin-Ho (Graduate School of Electrical Engineering and Computer Science, Kyungpook National University)
  • 이명원 (경북대학교 대학원 전자전기컴퓨터학부) ;
  • 성기웅 (경북대학교 대학원 전자전기컴퓨터학부) ;
  • 임형규 (경북대학교 대학원 전자전기컴퓨터학부) ;
  • 김민우 (경북대학교 대학원 전자전기컴퓨터학부) ;
  • 정의성 (경북대학교 대학원 전자전기컴퓨터학부) ;
  • 이장우 (경북대학교 대학원 전자전기컴퓨터학부) ;
  • 김동욱 (경북대학교 대학원 전자전기컴퓨터학부) ;
  • 이정현 (경북대학교병원 의공학과) ;
  • 이상흔 (경북대학교 의학전문대학원 이비인후과학교실) ;
  • 이규엽 (경북대학교 의학전문대학원 이비인후과학교실) ;
  • 조진호 (경북대학교병원 의공학과)
  • Published : 2009.07.31
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Abstract

The implantable middle ear hearing devices(IMEHDs) have been developed to overcome the conventional hearing aid's problem(ringing effect caused by the acoustic feedback, cosmetic problem, etc.). In the IMEHDs, the vibrating transducer is a key component because its vibration enables to hear for hearing impaired people. The vibrating transducer is implanted on ossicular chain by surgical operation. The coupling status between implanted transducer and ossicular chain has an effect on delivering vibrating force from transducer to stapes. Noninvasive method is required to investigate the output characteristics of IMEHDs after implementation. Recently, emitted sound pressure measuring method of tympanic membrane is proposed to investigate the output characteristics of IMEHDs. However, the relationship between displacement of stapes and sound pressure by tympanic membrane was not cleared. In this paper, displacement of stapes and sound pressure by tympanic membrane were measured using the differential floating mass transducer(DFMT) that implanted on the ossicular chain of the human temporal bone and physical ear model. Through the experiments results, the relationship between displacement of stapes and sound pressure by tympanic membrane was investigated.

Keywords

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