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유한요소기법에 의한 인두의 생체역학모델에 관한 연구

Other Titles
 A study on the biomechanical modeling of human pharynx by using FEM(Finite Element Method) 
 김성민  ;  김남현 
 Journal of Biomedical Engineering Research (의공학회지), Vol.19(4) : 423-429, 1998 
Journal Title
 Journal of Biomedical Engineering Research (의공학회지) 
Issue Date
Human pharynx is unique, acting as a complex interchange between the oral cavity and esophagus, and between the nasal cavity and lungs. It is actively involved in the transport of food and liquid, producing the forces that guide that bolus into the upper esophagus and away from the adjacent larynx and lungs. This study intended to develop a biomechanical model of the human pharynx, utilizing Finite Element Method(FEM). Within each model changes in cross sectional intralumenal area were calculated and compared with the area from the computer-generated FE model. Area matching allowed estimation of intraluminal pressure gradients during swallow. The estimated pharyngeal pressure gradient varies from one region to another. The estimated pharyngeal pressure gradients showed different patterns for upper four levels and lower four levels. The contraction velocity for upper four levels is much higher than lower four levels. The higher contraction velocities and pressure gradients in the upper levels are consistent with the bolus velocities required for efficient swallow.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Kim, Nam Hyun(김남현)
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