FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITY
The finite-element calculation of the static stress-strain state of the middle ear was made in this paper. The malleus, incus and stapes models were constructed on the basis of tomographic data. The tympanic membrane model was obtained using the equations of elliptic hyperboloids. The tympanic membr...
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University of Niš
2015-12-01
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doaj-de0e8ab64d1247e1ac989ccff77e769b2020-11-25T04:03:23ZengUniversity of NišFacta Universitatis. Series: Mechanical Engineering0354-20252335-01642015-12-01133249257599FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITYGennadi I. Mikhasev0Sergei M. Bosiakov1Lyudmila G. Petrova2Marina M. Maisyuk3Belarussian State UniversityBelarussian State UniversityNationalL Centre of OtorhinolaryngologyNationalL Centre of OtorhinolaryngologyThe finite-element calculation of the static stress-strain state of the middle ear was made in this paper. The malleus, incus and stapes models were constructed on the basis of tomographic data. The tympanic membrane model was obtained using the equations of elliptic hyperboloids. The tympanic membrane consists of the pars tensa and pars flaccida, which have different thicknesses and elasticity moduli. Absolute deformations of the tympanic membrane were defined at different values of negative pressure in the tympanic cavity. The critical values of elastic modulus for the pars tensa posterosuperior quadrant were found for the point at which the tympanic membrane touches the auditory ossicles. Obtained results can be used to predict the thickness of a cartilaginous graft which is overlaid on the posterosuperior quadrant of the pars tensa in order to eliminate the retraction pocket.http://casopisi.junis.ni.ac.rs/index.php/FUMechEng/article/view/942 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gennadi I. Mikhasev Sergei M. Bosiakov Lyudmila G. Petrova Marina M. Maisyuk |
spellingShingle |
Gennadi I. Mikhasev Sergei M. Bosiakov Lyudmila G. Petrova Marina M. Maisyuk FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITY Facta Universitatis. Series: Mechanical Engineering |
author_facet |
Gennadi I. Mikhasev Sergei M. Bosiakov Lyudmila G. Petrova Marina M. Maisyuk |
author_sort |
Gennadi I. Mikhasev |
title |
FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITY |
title_short |
FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITY |
title_full |
FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITY |
title_fullStr |
FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITY |
title_full_unstemmed |
FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITY |
title_sort |
finite-element modelling of the tympanic membrane retraction pocket under negative pressure in the tympanic cavity |
publisher |
University of Niš |
series |
Facta Universitatis. Series: Mechanical Engineering |
issn |
0354-2025 2335-0164 |
publishDate |
2015-12-01 |
description |
The finite-element calculation of the static stress-strain state of the middle ear was made in this paper. The malleus, incus and stapes models were constructed on the basis of tomographic data. The tympanic membrane model was obtained using the equations of elliptic hyperboloids. The tympanic membrane consists of the pars tensa and pars flaccida, which have different thicknesses and elasticity moduli. Absolute deformations of the tympanic membrane were defined at different values of negative pressure in the tympanic cavity. The critical values of elastic modulus for the pars tensa posterosuperior quadrant were found for the point at which the tympanic membrane touches the auditory ossicles. Obtained results can be used to predict the thickness of a cartilaginous graft which is overlaid on the posterosuperior quadrant of the pars tensa in order to eliminate the retraction pocket. |
url |
http://casopisi.junis.ni.ac.rs/index.php/FUMechEng/article/view/942 |
work_keys_str_mv |
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