DYNAMIC ANALYSIS OF FLUID-STRUCTURE INTERACTION OF ENDOLYMPH AND CUPULA IN THE LATERAL SEMICIRCULAR CANAL OF INNER EAR
DYNAMIC ANALYSIS OF FLUID-STRUCTURE INTERACTION OF ENDOLYMPH AND CUPULA IN THE LATERAL SEMICIRCULAR CANAL OF INNER EAR
复制标题
内耳外半规管内淋巴与耳罩流固相互作用的动态分析
DOI：
10.1016/s1001-6058(10)60176-x
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发表时间：
2011-12-01
影响因子：
2.5
通讯作者：
Wang Ke-qiang
中科院分区：
文献类型：
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作者：
Wu Cai-qin;Hua Cheng;Wang Ke-qiang
半规管由内耳的侧管、前管和后管组成，是头部在三维空间中旋转运动时的平衡传感器。半圆管充满内淋巴，被壶腹限制。研究内淋巴液流动与半规管顶变形的关系对揭示半规管的生物力学行为具有重要意义。到目前为止，有几个研究集中在瞬态内淋巴流和杯状变形响应头部旋转运动。外半规管主要负责水平旋转运动的感觉。为了研究头部旋转运动过程中外半规管内复杂的动力学行为，本文采用流固耦合模型分析了内淋巴液流动和杯状结构变形随时间的变化规律。结果表明，杯状变形提供了线索，了解生理感知头部旋转。
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.