Open AccessNumerical modelling and vibration analysis of human middle ear for application in sound conduction reconstruction
Author(s) -
Yang Liu,
Takao Higashimachi,
Ryuzo Toriya
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/657/1/012037
Subject(s) - stapes , middle ear , displacement (psychology) , vibration , acoustics , hearing aid , tympanoplasty , finite element method , footplate , harmonic , computer science , mathematics , medicine , structural engineering , engineering , physics , surgery , psychology , mechanical engineering , psychotherapist
In this paper, we introduce a new numerical approach for estimating the hearing restoration eect prior to the tympanoplasty operation using the nite element harmonic vibration analysis. This kind of approach makes it possible to propose a new medical treatment for the recovery of conductive or cochlear hearing loss. First of all, precise geometric models of the middle ear, including healthy type model and tympanoplasty type models, are constructed on the basis of the computerized tomography (CT) scanning data. Then, frequency response characteristics of the stapes displacement in sound conduction are claried using the three-dimensional nite element harmonic vibration analysis. Based on the investigation results, we propose that the hearing restoration eect can be estimated by a comparison of the dierences in the stapes displacement between the reconstruction model and the healthy subject.