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Vol. 161, Issue 12, December 2013, pp. 460-465




Biomechanical Analysis of Stentless Quadrileaflet Pericardial Mitral Valve: Implications of Morphologies
1 Xiao-Yang HUANG, 1 Yun LUO, 1 Qi ZHONG, 2 Mao-Long SU, 1 Bo-Liang WANG and 1 Shao-Hui HUANG

1 School of Information Science and Technology, Xiamen University, Xiamen, 361005, China

2 Xiamen University Zhongshan Hospital, Xiamen University, Xiamen, 361005, China

1 Tel.: 18950080208, fax: 0592-2580035

1 E-mail: xyhuang@xmu.edu.cn


Received: 18 September 2013   /Accepted: 22 November 2013   /Published: 30 December 2013

Digital Sensors and Sensor Sysstems


Abstract: To investigate the biomechanical behaviors of a stentless quadrialeaflet pericardial mitral, and to obtain the deformation and the stress distribution through the finite element method, we developed the finite element computer model of the stentless quadrileaflet mitral valve, which includes leaflets, annulus, chordae tendineae and papillary muscle. The analysis represents that the open and the close shapes of the valve from the numerical results were quite close to those observed in the experiment of the hydrodynamic performance in vitro, the stress distribution was relatively uniform, and the maximum Von Mises stress occurred in the base and the border of the leaflets. The model and the finite element computational for identifying deformation and stress distribution of the mitral valve is reasonable and advisable to improve the endurance of the pericardial mitral valve. To study the implications of morphologies, one auxiliary model, with a narrower base of leaflets, was compared with the present model. Comparison results showed that the maximum Von Mises stress on the auxiliary model reached up to 4.1 MPa, which was higher than 1.58 MPa of present one.


Keywords: Finite element analysis, Stentless quadrialeaflet pericardial mitral, Stress distribution, Simulation.


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