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Cybernetics And Systems Analysis
International Theoretical Science Journal
UDC 531/534:57
I.T. Selezov,1 Iu.G. Kryvonos2

MODELING OF PRESSURE PULSE WAVES IN BYPASS GRAFTING

Abstract. The dynamics of a bypass in terms of determining the optimum parameters of operation of the shunt is investigated. The equations describing the propagation of pressure pulse waves in the blood vessels are presented in differential form and in approximate form for the averaged values based on the conservation laws. The influence of the parameters such as various diameters, wall thicknesses, and elastic properties of blood vessels on the shunt effectiveness is investigated. In particular, we investigate the influence of the shunt form and junction area, as well as the angle of the shunt connection with the vessel, on the passage of the coronary vessels and blood coagulation. On the basis of the calculations, conclusions about the influence of various parameters on the dynamics of bypass are made.

Keywords: bypass grafting, coronary artery, hydraulic losses, physical and mechanical properties of blood vessels.



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1Institute of Hydromechanics, National Academy of Sciences of Ukraine, Kyiv, Ukraine,
e-mail: selezov@ya.ru.

2V. M. Glushkov Institute of Cybernetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine,
e-mail: Kryvonos@nas.gov.ua.

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