Abstract
This paper constructs the bioprosthetic valve leaflets’ parametric model using computer aided design.A series of accurate parameters of the bioproshtetic heart valve, such as radius of the sutural ring, height of the supporting stent and inclination of the supporting stent are determined. Numerical simulation is used to determine the effect of different shape designs and suture density on the mechanical performance of the bioprosthetic valve leaflet. The dynamic behavior of the valve during diastolic phase is analyzed. The finite element analysis results show that the stress distribution of the ellipsoidal leaflet valve is good. The ellipsoidal leaflet valve has the following advantages over the cylindrical leaflet valve: lower peak von Mises-stress, smaller stress concentration area and relatively uniform stress distribution. The suture density also has a significant effect on the dynamic behavior of the valve as it can act to reduce the pressure and improve the stress distribution. It was found that the influence of suture density in the stress of the leaflet differs on the basis of different geometries considered in the model. The degree of influence of the suture density in the bioprosthetic heart valve may also be dependent on the geometries of the valves. This indicates the need to account for the attachment edge, when manufacturing such bioproshetic heart valves for long term durability. Further research is required to assess the effect of suture density on the bioprosthetic heart valve models.
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References
Schoen, F.J., Gimbrone, M.A.: Ramzi S. Cotran, MD, 1932-2000. Cardiovascular Pathology 10(3), 107–108 (2001)
Sacks, M.S., Mirnajafi, A., et al.: Effects of cyclic flexural fatigue on porcine bioprosthetic heart valve heterograft biomaterials. Journal of Biomedical Materials Research Part A 94A(1), 205–213 (2010)
Sacks, M.S., Iyengar, A.K.S., et al.: Dynamic in vitro quantification of bioprosthetic heart valve leaflet motion using structured light projection. Annals of Biomedical Engineering 29(11), 963–973 (2001)
Mohammadi, H., Bahramian, F., Wan, W.: Advanced modeling strategy for the analysis of heart valve leaflet tissue mechanics using high-order finite element method. Medical Engineering & Physics 31(9), 1110–1117 (2009)
Broom, N.D.: The stress/strain and fatigue behaviour of glutaraldehyde preserved heart-valve tissue. Journal of Biomechanics 10(11-12), 707-724 (1977)
Garcıa Páez, J.M., Jorge Herrero, E., et al.: Comparison of the mechanical behaviors of biological tissues subjected to uniaxial tensile testing: pig, calf and ostrich pericardium sutured with Gore-Tex. Biomaterials 24(9), 1671–1679 (2003)
Lim, K.O., Cheong, K.C.: Effect of suturing on the mechanical properties of bovine pericardium — implications for cardiac valve bioprosthesis. Medical Engineering & Physics 16(6), 526–530 (1994)
Scheffer, C., Smuts, A.N., et al.: Application of finite element analysis to the design of tissue leaflets for a percutaneous aortic valve. Journal of the Mechanical Behavior of Biomedical Materials 4(1), 85–98 (2011)
Gould, P.L., Cataloglu, A., et al.: Stress analysis of the human aortic valve. Computers & Structures 3(2), 377–384 (1973)
Zilla, P., Human, P., et al.: Bioprosthetic heart valves: the need for a quantum leap. Biotechnology and Applied Biochemistry 40(1), 57–66 (2004)
Vongpatanasin, W., Hillis, L.D., et al.: Prosthetic Heart Valves. New England Journal of Medicine 335(6), 407–416 (1996)
Gillinov, A.M., Blackstone, E.H., et al.: Prosthesis-patient size: Measurement and clinical implications. Journal of Thoracic and Cardiovascular Surgery 126(2), 313–316 (2003)
Sacks, M.S., Eckert, C.E., et al.: In Vivo Dynamic Deformation of the Mitral Valve Annulus. Annals of Biomedical Engineering 37(9), 1757–1771 (2009)
Vesely, I.: The evolution of bioprosthetic heart valve design and its impact on durability. Cardiovascular Pathology 12(5), 277–286
Franz, T., Koch, T.M., et al.: Aortic valve leaflet mechanical properties facilitate diastolic valve function. Computer Methods in Biomechanics and Biomedical Engineering 13(2), 225–234 (2010)
Luo, X.Y., Li, J., et al.: A nonlinear anisotropic model for porcine aortic heart valves. Journal of Biomechanics 34(10), 1279–1289 (2001)
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Ye, X., Zhang, L., Xu, Z., Hou, Z., Bai, X., Shang, P. (2014). Effect of Suture Density on the Dynamic Behavior of the Bioprosthetic Heart Valve: A Numerical Simulation Study. In: Zhang, Y., Yao, G., He, J., Wang, L., Smalheiser, N.R., Yin, X. (eds) Health Information Science. HIS 2014. Lecture Notes in Computer Science, vol 8423. Springer, Cham. https://doi.org/10.1007/978-3-319-06269-3_4
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DOI: https://doi.org/10.1007/978-3-319-06269-3_4
Publisher Name: Springer, Cham
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