Engineering Transactions, 64, 4, pp. 573–579, 2016

Analysis of a Dynamic Response of the Cochlea Using Fluid-Structure Interaction Model

Konrad KAMIENIECKI
Warsaw University of Technology
Poland

Janusz PIECHNA
Warsaw University of Technology
Poland

Paweł BORKOWSKI
Warsaw University of Technology
Poland

A one-dimensional (1D) model of the cochlea of the inner ear has been built and validated against the previously built three-dimensional (3D) fluid-structure interaction (FSI) model of the cochlea. The 1D model has been used to assess the influence of the round window impedance on the pressure distribution in the cochlea. It was shown that high impedance, which enables compression reflection pressure wave at the round window, leads to the biggest pressure difference between the scala vestibule and the scala tympani in the cochlea, which may lead to a stronger excitation of the basilar membrane.
Keywords: inner ear; cochlea; differential pressure
Full Text: PDF

References

Kwacz M., Marek P., Borkowski P., Mrówka M., A three-dimensional finite element model of round window membrane vibration before and after stapedotomy surgery, Biomechanics and Modeling in Mechanobiology, 12(6): 1243–1261, 2013, doi: 10.1007/s10237-013-0479-y.

Gan R.Z., Reeves B.P., Wang X., Modeling of sound transmission from ear canal to cochlea, Annals of Biomedical Engineering, 35(12): 2180–2195, 2007, doi:10.1007/s10439-007-9366-y.

Grey H., Williams P.L., Bannister L.H., Grey’s anatomy: the anatomical basis of medicine and surgery, Williams P.L., (chairman of the editorial board), 38 th ed., Churchill Livingstone, New York 1995.

von Békésy G., Wever E.G., Experiments in hearing, McGraw-Hill, New York, 1960.

Nakajima H.H., Dong W., Olson E.S., Merchant S.N., Ravicz M.E., Rosowski J. J., Differential intracochlear sound pressure measurements in normal human temporal bones, JARO – Journal of the Association for Research in Otolaryngology, 10(1): 23–36, 2009, doi: 10.1007/s10162-008-0150-y.

Kwacz M., Marek P., Borkowski P., Mrówka M., A three-dimensional finite element model of round window membrane vibration before and after stapedotomy surgery, Biomechanics and Modeling in Mechanobiology, 12(6): 1243–1261, 2013, doi: 10.1007/s10237-013-0479-y

Kwacz M., Mrówka M., Wysocki J., Differences in the perilymph fluid stimulation before and after experimental stapedotomy, Acta of Bioengineering and Biomechanics, 14(2): 67–73, 2012, doi: 10.5277/abb120209.

Mistrík P., Mullaley C., Mammano F., Ashmore J., Three-dimensional current flow in a large-scale model of the cochlea and the mechanism of amplification of sound, Journal of The Royal Society Interface, 6(32): 279–91, 2009, doi: 10.1098/rsif.2008.0201.

Lyon R.F., Mead C., Cochlear hydrodynamics demystified, Caltech Computer Science Department Technical Report, Caltech-CS-TR-88-4, Caltech, Pasadena 1988.

Suesserman M.F., Spelman F.A., Lumped-parameter model for in vivo cochlear stimulation,” IEEE Transactions on Biomedical Engineering, 40(3): 237–245, 1993, doi: 10.1109/10.216407.

Vanpoucke F.J., Zarowski A.J., Peeters S.A., Identification of the impedance model of an implanted cochlear prosthesis from intracochlear potential measurements, IEEE Transactions on Biomedical Engineering, 51(12): 2174–2183, 2004, doi: 10.1109/TBME.2004.836518.

de Boer E., van Bienema E., Solving cochlear mechanics problems with higher-order differential equations, Journal of the Acoustical Society of America, 72(5):1427–1434, 1982, doi: 10.1121/1.388675.

Diependaal R., Nonlinear and active cochlear models: Analysis and solution methods. PhD thesis. TU-Delft, Netherlands, 1988.

Lim K.M., Steele C.R., A three-dimensional nonlinear active cochlear model analyzed by the WKB-numeric method, Hearing Research, 170(1–2): 190–205, 2002, doi: 10.1016/S0378-5955(02)00491-4.

Kwacz M., Marek P., Borkowski P., Gambin W., Effect of different stapes prostheses on the passive vibration of the basilar membrane, Hearing Research, 310: 13–26, 2014, doi: 0.1016/j.heares.2014.01.004.

Wada H., Metoki T., Kobayashi T., Analysis of dynamic behavior of human middle ear using a finite-element method, Journal of the Acoustical Society of America, 92(6): 3157–3168, 1992, doi: 10.1121/1.404211.




Copyright © 2014 by Institute of Fundamental Technological Research
Polish Academy of Sciences, Warsaw, Poland