Optimizing the shape of the prosthetic aortic leaflet valve

Piotr Konderla; Krzysztof Patralski

Piotr Konderla Wroclaw University of Technology
Krzysztof Patralski Lower Silesian Centre of Heart Diseases MEDINET

Abstract

The object under study reported on in this paper was an aortic valve based on a natural aortic valve as the original. Simulations were carried out to examine the functioning of a valve which was loaded with varying pressure until a buckling of the leaflets and a full opening of the valve were observed. The aim of the study was the optimal choice of the geometric and mechanical parameters for the class of construction assumed for analysis.

Keywords

References

[1] M. Butterfield, J. Fisher, G.A. Davids, J.M. Kearney. Leaflet geometry and function in porcine bioprostheses. European Journal of Cardio- Thoracic Surgery, 5: 27-33, 1991.
[2] J. Fisher, M. Butterfield, K.J. Lockie, G.A. Davids. A model of geometrical changes in aortic valve leaflets in response to leaflet extension and variable boundary conditions. Journal of Engineering in Medicine, 206: 7-14, 1992.
[3] J. Fisher, D.J. Wheatley. An improved pericardial bioprosthetic heart valve. Design and laboratory evaluation. European Journal of Cardio-Thoracic Surgery, 1: 71- 79, 1987.
[4] D.N. Ghista, H. Reul. Prosthetic aortic leaflet valve design: Performance analysis of avcothane leaflet valve. Advance Cardiovascular Physiology, 5: 31- 42, 1983.
[5] E.J. Haug, KK Choi, V. Komkov. Design Sensitivity Analysis of Structural Systems. Academic Press, New York, 1986.