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Dynamic Analysis of Fluid-Structure Interaction of Endolymph and Cupula in the Lateral Semicircular Canal of Inner Ear

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Abstract

The semicircular canals, composed of lateral, anterior and posterior canals in the inner ear, are the sensors of equilibrium during head rotation movements in the three-dimensional space. Semicircular canals are filled with endolymph confined by the cupula. The study of the relationship between endolymph flow and cupular deformation is important in revealing the semicircular canals biomechanical behavior. To date, there are few studies focusing on the transient endolymph flow and cupular deformation in response to a head rotation motion. The lateral semicircular canal is mainly responsible for the sense of the horizontal rotation movement. In order to figure out the intricate dynamics in the lateral semicircular canal during the head rotation motion, the time evolutions of both endolymph flow and cupular deformation are analyzed in this article by using a fully coupled fluid-structure interaction model. It is shown that the cupular deformation provides cues for understanding the physiology of sensing the head rotation.

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Authors and Affiliations

  1. Department of Mechanics and Engineering Science, Fudan University, Shanghai, 200433, China

    Cai-qin Wu & Cheng Hua

  2. Eye and ENT Hospital of Fudan University, Shanghai, 200031, China

    Lin Yang, Pei-dong Dai & Tian-yu Zhang

  3. Cardiovascular Disease Institute, Zhongshan Hospital of Fudan University, Shanghai, 200032, China

    Ke-qiang Wang

Authors
  1. Cai-qin Wu
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  2. Cheng Hua
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  3. Lin Yang
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  4. Pei-dong Dai
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  5. Tian-yu Zhang
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  6. Ke-qiang Wang
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Corresponding author

Correspondence to Pei-dong Dai.

Additional information

Project supported by the National Natural Science Foundation of China (Grant No. 30971528), the Shanghai Committee of Science and Technology of China (Grant No. 10ZR1403500).

Biography: WU Cai-qin (1979-), Female, Ph. D. Candidate

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Wu, Cq., Hua, C., Yang, L. et al. Dynamic Analysis of Fluid-Structure Interaction of Endolymph and Cupula in the Lateral Semicircular Canal of Inner Ear. J Hydrodyn 23, 777–783 (2011). https://doi.org/10.1016/S1001-6058(10)60176-X

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  • DOI: https://doi.org/10.1016/S1001-6058(10)60176-X

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