| Autor: |
Cary BG; Massachusetts Institute of Technology., Zhang JZ; Massachusetts Institute of Technology., McHugh CI; Harvard Medical School and Massachusetts Eye and Ear., Kymissis I; Columbia University., Olson ES; Columbia University., Nakajima HH; Harvard Medical School and Massachusetts Eye and Ear., Lang JH; Massachusetts Institute of Technology. |
| Jazyk: |
angličtina |
| Zdroj: |
IEEE sensors journal [IEEE Sens J] 2021; Vol. 2021. Date of Electronic Publication: 2021 Dec 17. |
| DOI: |
10.1109/sensors47087.2021.9639746 |
| Abstrakt: |
This paper presents an implantable microphone for sensing the displacement of the umbo, the end of the malleus where it attaches to the center tip of the cone-shaped tympanic membrane. The sensor comprises a piezoelectric polyvinylidene fluoride (PVDF) film with copper-nickel electrodes suspended across a brass cylinder. The cylinder is oriented so that the umbo pushes on the film center, causing a static and acoustically-driven dynamic film displacement. An amplifier filters the resulting piezoelectric charge to produce an output signal. The sensor enables the full implantation of assistive hearing devices, which can restore hearing without inhibiting the user's lifestyle, while enabling better sound localization in noisy environments. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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