Dynamic Analysis of the Bioprosthetic Heart Valve on Different Fixation

Abstract:

Article Preview

This paper constructs the bioprosthetic valve leaflets’ parametric model via computer aided design, a series of accurate parameters of the bioproshtetic heart valve, such as 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 attachment edge fixed ways 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 comparatively reasonable. 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 different ways of the attachment edge fixed also have a significant effect on the dynamic behavior of the valve. Attachment edge with some degrees of rotation when seamed to the stent can act to reduce the pressure and make the stress distribution reasonable. Reasonable attachment edge fixation may contribute to the long term durability of the valve. This indicates the need to account for the attachment edge seamed way, when manufacturing the bioproshetic heart valve with long term durability. This work is very helpful to manufacture valvular leaflets with reasonable shapes and to prolong the lifetime of the bioprosthetic heart valve.

Info:

Periodical:

Edited by:

Wu Fan

Pages:

2342-2347

Citation:

X. Ye et al., "Dynamic Analysis of the Bioprosthetic Heart Valve on Different Fixation", Applied Mechanics and Materials, Vols. 110-116, pp. 2342-2347, 2012

Online since:

October 2011

Export:

Price:

$38.00

[1] Vesely, I., The evolution of bioprosthetic heart valve design and its impact on durability, Cardiovascular Pathology, vol. 12, p.277– 286, (2003).

DOI: https://doi.org/10.1016/s1054-8807(03)00075-9

[2] Peter Zilla1, Paul Human and D. Bezuidenhout, Bioprosthetic heart valves: the need for a quantum leap, Biotechnol. Appl. Biochem., vol. 40, p.57–66, (2004).

DOI: https://doi.org/10.1042/ba20030211

[3] Bruce, Z. G., S. Pandya and C. Arana, Bioprosthetic Heart Valve Leaflet Deformation Monitored by Double-Pulse Stereo Photogrammetry, Annals of Biomedical Engineering, vol. 30, p.11–18, (2002).

DOI: https://doi.org/10.1114/1.1432690

[4] Hiromitsu, T, Tatsuumi Sasaki, Kazuhiro Hashimoto, Takashi Hachiya and Katsuhisa Onoguchi, Hemodynamic Evaluation of 19-mm Carpentier-Edwards Pericardial Bioprosthesis in Aortic Position, The Annals of Thoracic Surgery, vol. 71, p.609–613, (2001).

DOI: https://doi.org/10.1016/s0003-4975(00)02210-4

[5] Pibarot, P. and Dumesnil J. G., Patient-prosthesis mismatch and the predictive use of indexed effective orifice area: is it relevant?, Cardiac Surgery Today, vol. 2, pp.43-51, (2003).

[6] Dumesnil, J. G. and P. Pibarot, Prosthesis size and prosthesis-patient size are unrelated to prosthesis-patient mismatch, Thorac. Cardiovasc Surg., vol. 127, pp.1852-1854, (2004).

DOI: https://doi.org/10.1016/j.jtcvs.2003.11.073

[7] Quan Yuan, Chengrui Zhang, and Xiaowei Wang, Geometrical Design and Finite Element Analysis on the Bioprosthetic Heart Valve, International Journal of Innovative Computing, Information and Control (IJICIC), vol. 3., pp.1-11, (2007).

[8] Hiroyuki, F., H. Kano, M. Egerstedt and C. F. Martin, Smoothing Spline Curves and Surfaces for Sampled Data, International Journal of Innovative Computing , Information and Control(IJICIC), vol. 1, p.429—449, (2005).

[9] Luo, X. Y., W. G. Li and J. Li, Geometrical Stress-Reducing Factors in Anisotropic Porcine Heart Valves, Journal of Biomechanical Engineering, vol. 125, pp.735-743, (2003).

DOI: https://doi.org/10.1115/1.1614821

[10] Rika, Ito, Tetsuya Fujie, Kenji Suyama and Ryuichi Hirabayashi, Design Methods of Fir Filters with Signed Power of Two Coefficients Using a New Linear Programming Relaxation with Triangle InEquation ualities, International Journal of Innovative Computing, Information and Control (IJICIC), vol. 2., pp.441-448, (2006).

DOI: https://doi.org/10.1109/iscas.2002.1009965

[11] Gillinov, A. M., Blackstone E. H., Rodriguez L. L., Prosthesis-patient size: measurement and clinical implications, Thorac. Cardiovasc Surg., vol. 126, pp.313-316, (2003).