Study of the middle ear behavior considering the presence of fluid

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Garbe, C (Author) Other; Gentil, F (Author) Other; Parente, MPL (Author) FEUP; Pedro Martins (Author) FEUP; Santos, C (Author) Other; Branco, C (Author) Other; Paco, J (Author) Other; Renato Natal Jorge (Author) FEUP

Journal

Title: Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria

Vol. 32

Pages: 188-191

ISSN: 0213-1315

Publisher: Scipedia S.L

Indexing

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Other information

Authenticus ID: P-00K-NP1

DOI: 10.1016/j.rimni.2015.05.001

Abstract (EN): The objective of this work is to study the influence of different fluids of the tympanic cavity into the biomechanical behavior of the middle ear. The 3 D computer model of the tympanic ossicular chain was built using images from computed tomography (CT). After construction of the tympanic ossicular chain model, it was adapted the simulation by placing the passage to the external auditory canal and to the tympanic cavity. The discretization of the model was made using the finite element method based on ABAQUS software. The mechanical properties were extracted from previous works. The umbo and the stapes footplate displacements, for a sound pressure level of 105 dB applied in tympanic membrane were obtained, corn paring the tympanic ossicular chain and the different levels of external and internal pressure in the middle ear (liquid and air). The results demonstrate that the biomechanical behavior of the middle ear is different for different levels of pressure tested in this model. When using liquid, displacements are of lower amplitude when compared with the results obtained with air. (C) 2014 CIMNE (Universitat Politecnica de Catalunya). Published by Elsevier Espana, S.L.U.

Language: Spanish

Type (Professor's evaluation): Scientific

No. of pages: 4