Ultraminiature encapsulated accelerometers as a fully implantable sensor for implantable hearing aids
| Autor: | Sunil Puria, Kevin N. O'Connor, Parmita Dalal, Joseph B. Roberson, Kuan-Lin Chen, Thomas W. Kenny, Vipin Ayanoor-Vitikkate, Woo-Tae Park, Rob N. Candler, Joseph R. Mallon, Toshiki Maetani |
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| Rok vydání: | 2007 |
| Předmět: |
Hearing aid
Engineering Acoustics medicine.medical_treatment Acceleration Transducers Biomedical Engineering Accelerometer Signal Vibration Hearing Aids otorhinolaryngologic diseases medicine Humans ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS Ear canal Molecular Biology Sound (medical instrument) Miniaturization Ossicles business.industry Equipment Design Prostheses and Implants Piezoresistive effect Equipment Failure Analysis medicine.anatomical_structure Middle ear business Biomedical engineering |
| Zdroj: | Biomedical microdevices. 9(6) |
| ISSN: | 1387-2176 |
| Popis: | Experiments were conducted to evaluate a silicon accelerometer as an implantable sound sensor for implantable hearing aids. The main motivation of this study is to find an alternative sound sensor that is implantable inside the body, yet does not suffer from the signal attenuation from the body. The merit of the accelerometer sensor as a sound sensor will be that it will utilize the natural mechanical conduction in the middle ear as a source of the vibration. With this kind of implantable sound sensor, a totally implantable hearing aid is feasible. A piezoresistive silicon accelerometer that is completely encapsulated with a thin silicon film and long flexible flex-circuit electrical cables were used for this study. The sensor is attached on the middle ear ossicles and measures the vibration transmitted from the tympanic membrane due to the sound in the ear canal. In this study, the sensor is fully characterized on a human cadaveric temporal bone preparation. |
| Databáze: | OpenAIRE |
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