Numerical simulation is an effective tool to study the biomechanical mechanism of the upper airway collapse, but few previous studies have considered the effect of the neural control. Based on a finite element model including airway, skull, neck, hyoid and soft tissue around the upper airway, the effect of the neural control on the upper airway collapse was studied with fluid-structure interaction method. Spring element was used to simulate the function of the muscle group. The results show that the strain concentration disappears and the airway resistance decreases during the apnea episode when the neural control exists, which means that the neural control reduces the deformation of airway successfully and avoids the risk of OSAS.
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- Modeling and Simulation of the Neural Control on OSAS with Fluid-Structural Interaction Method
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