Numerical analysis of ossicular chain lesion of human ear  

作　　者：Yingxi Liu Sheng Li Xiuzhen Sun 

机构地区：[1]State Key Laboratory of Structural Analysis for IndustrialEquipment, Dalian University of Technology,116024 Dalian, China [2]ENT Department, The Second Affiliated Hospital of DalianMedical University, 116025 Dalian, China

出　　处：《Acta Mechanica Sinica》2009年第2期241-247,共7页力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (10472025, 10672036, and 10872043)

摘　　要：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.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.

关 键 词：Finite element model Ossicular chain lesionAcoustic-structural coupled analysis Middle ear cavity Sound transmission 

分 类 号：O241[理学—计算数学] TN912.3[理学—数学]