FINITE ELEMENT ANALYSIS OF THE TRANSCATHETER AORTIC VALVE BIOPROSTHESIS
https://doi.org/10.17802/2306-1278-2016-1-6-11
Abstract
Purpose. Modelling of the interaction of biomechanical systems «aortic root – transcatheter heart valve prosthesis» via finite element method.
Materials and methods. The object of the study used a model of transcatheter aortic valve size 23 mm, contains a self-extracting mesh support frame, with mounted a tubular leaflet apparatus made of porcine pericardium stabilized glutaraldehyde. Modeling of the prosthetic aortic valve implantation was performed in an environment CAE Abaqus/CAE in the three-dimensional aortic root model № 19 size.
Results. As a result of the interaction of the prosthesis and the aortic root has been found that the resulting voltage at the nodes flap apparatus does not exceed the permissible tensile strength: 0.96 MPa against 10.62 MPa, respectively. The individual finite elements of the prosthesis frame showed a slight excess of the tensile strength, but the maximum amount of permanent deformation was not more than 0.4 %.
Conclusion. The work demonstrated the consistency of modeling approach prosthetic implant assembly allowing for the interaction between the support frame and the leaflet apparatus with the aortic root.
About the Authors
E. A. OVCHARENKO
Federal State Budgetary Scientific Institution Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
Russian Federation
Russian Federation
K. U. KLYSHNIKOV
Federal State Budgetary Scientific Institution Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
Russian Federation
Russian Federation
6, Sosnoviy blvd., Kemerovo, 650002, Russian Federation Tel. +7 (3842) 64-45-27
T. V. GLUSHKOVA
Federal State Budgetary Scientific Institution Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
Russian Federation
Russian Federation
L. S. BARBARASH
Federal State Budgetary Scientific Institution Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
Russian Federation
Russian Federation
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Review
For citations:
OVCHARENKO E.A., KLYSHNIKOV K.U., GLUSHKOVA T.V., BARBARASH L.S. FINITE ELEMENT ANALYSIS OF THE TRANSCATHETER AORTIC VALVE BIOPROSTHESIS. Complex Issues of Cardiovascular Diseases. 2016;(1):6-11. (In Russ.) https://doi.org/10.17802/2306-1278-2016-1-6-11
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