主动脉瓣膜心舒张初期振动仿真.PDF

J Biomed Eng 2001; 18( 4) 557560 * 1 2 3 杨明静　张　娟　张　辉 1( 福州大学 无线电系, 福州　350002) 2( 内蒙蒙医学院基础教研室, 通辽　028000) 3( 实达网络科技有限公司, 福州　350002) , , : , , The Emulation of Aortic Valve Vibration During Early Diastole Yang Mingjing1 Zhang Juan2Zhang Hui 1( Dep artment of Radio Engineering , Fuz hou University , Fuz hou350002) 2( Dep artment of Pathology, Inner Mongolia Nationality University, Tongliao028000) 3( , 350002) Fuj ian Star N et ork Technology Comp any Fuz hou AbstractA finit e element aort ic valve model is described. The geometr and material propert of the model are more exact t han before. The finite elem ent d namic anal sis w as used to , emulat e the closed valve mot ion dur - ing the earl diastole. T he result s of emulating demonstrate that t he closed valve vibrates during earl diastole. The also reveal t hat the increase in st iffness of valve, the augmentation t hickness of valve, the decrease in the rate of change of the pressure, and the reduction of the initial pressure ma affect the vibration and cause the diminution of the aortic component of the second heart sound. Key words Aortic valve Finite element model Vibration Second heart sound , 1 [ 2] Edw ard F. Blick , , , , , , [ 3]