Differences in the perilymph fluid stimulation before and after experimental stapedotomy

• Autorzy: Kwacz M. , Mrówka M. , Wysocki J.
• Języki publikacji: EN

Abstrakty

EN

A stapedotomy surgery using a piston stapes prosthesis significantly modifies the perilymph fluid stimulation level and always leads to alteration of conditions in sound transmission through the cochlea. This paper shows the results of non-contact measurements of the stapes head velocity, a Teflon piston stapes prosthesis velocity and round window velocity conducted in freshly harvested human cadaver temporal bone specimens. The vibration patterns were measured within the frequency range of 0.4-10 kHz at the sound pressure level of 90 dB administered to the external auditory canal in the same specimen before and after experimental stapedotomy. It was shown that the vibrations of the stapes Teflon piston prosthesis and the physiological stapes are similar and approximately five-fold lower amplitude of the round window membrane vibrations compared to a physiologic situation is caused by piston shape of the stapes prosthesis. The results in this report are the part of a larger study designed to develop a new type of chamber stapes or whole middle ear prosthesis.

Słowa kluczowe

EN

stapedotomy; teflon piston stapes prosthesis; laser Doppler vibrometry

PL

teflonowy tłok strzemiączka protezy; laser Dopplera

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2012
• Tom: Vol. 14, no. 2
• Strony: 67--73
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Kwacz M.

autor

Mrówka M.

autor

Wysocki J.

• Institute of Micromechanics and Photonics, Faculty of Mechatronics, Warsaw University of Technology,

Bibliografia

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