DocumentCode :
1567246
Title :
Quasi-static simulation of mitral valve edge to edge repair
Author :
Li, Kewei ; Pham, Thuy M. ; Sun, Wei
Author_Institution :
Dept. of Mech. Eng., Univ. of Connecticut, Storrs, CT
fYear :
2009
Firstpage :
1
Lastpage :
3
Abstract :
Edge-to-edge repair (ETER) technique alters mitral valve inflow in the diastolic phase and thus the stress distribution on each leaflet, especially the area near sutured edges. In the present study, we performed finite element simulations of ETER mitral valve during the diastolic phase under different pressures. We conducted planar biaxial mechanical testing to obtain the material properties of native mitral leaflets. The test data were characterized by the Fungelastic model. Fung-elastic model with material parameters from experiments was implemented into FE models of ETER mitral valve to study leaflet deformation. The simulation results indicate the high stress regions occurred in the areas near sutured edges and the vicinity of commissures.
Keywords :
biomechanics; blood vessels; cardiovascular system; deformation; elasticity; finite element analysis; haemodynamics; mechanical testing; physiological models; ETER technique; Fung-elastic model; diastolic phase; finite element simulation; leaflet deformation; leaflet stress distribution; mechanical testing; mitral valve edge-to-edge repair; mitral valve inflow; planar biaxial mechanical testing; quasi-static simulation; Biomechanics; Capacitive sensors; Conducting materials; Deformable models; Finite element methods; Geometry; Materials testing; Solid modeling; Stress; Valves;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Bioengineering Conference, 2009 IEEE 35th Annual Northeast
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-4362-8
Electronic_ISBN :
978-1-4244-4364-2
Type :
conf
DOI :
10.1109/NEBC.2009.4967681
Filename :
4967681
Link To Document :
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