Numerical analysis of ossicular chain lesion of human ear |
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Authors: | Yingxi Liu Sheng Li Xiuzhen Sun |
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Institution: | (1) State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, 116024 Dalian, China;(2) ENT Department, The Second Affiliated Hospital of Dalian Medical University, 116025 Dalian, China |
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Abstract: | Lesion of ossicular chain is a common ear disease impairing the sense of hearing. A comprehensive numerical model of human
ear can provide better understanding of sound transmission. In this study, we propose a three-dimensional finite element model
of human ear that incorporates the canal, tympanic membrane, ossicular bones, middle ear suspensory ligaments/muscles, middle
ear cavity and inner ear fluid. Numerical analysis is conducted and employed to predict the effects of middle ear cavity,
malleus handle defect, hypoplasia of the long process of incus, and stapedial crus defect on sound transmission. The present
finite element model is shown to be reasonable in predicting the ossicular mechanics of human ear.
The project was supported by the National Natural Science Foundation of China (10472025, 10672036, and 10872043). |
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Keywords: | Finite element model Ossicular chain lesion Acoustic– structural coupled analysis Middle ear cavity Sound transmission |
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