Fluid flow in a hydraulic test system was visualized. The test system was used to simulate the flow through an improved modification of the Sputnik LVAD. The experiments were run in three operating modes with different volumetric flow rates and identical pressure heads (80 mm Hg): the nominal mode (4.5 L/min), a low volumetric flow rate mode (3 L/min), and a high volumetric flow rate mode (6 L/min). The study showed that the fluid flow velocity field in the modified pump was highly stable in all areas under study. Comparison of the original and modified impeller designs showed that the optimization was successful. Further tests should be carried out to check the LVAD safety and hemolysis.
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Gautier, S. V., Shevchenko, A. O., Itkin, G. P., Zakharevich, V. M., Poptsov, V. N., Drobyshev, A. A., and Telyshev, D. V., “Artificial heart in Russia: Past, present, and future,” Artif. Org., 45, 111-114 (2021).
Bockeria, L. A., Bockeria, O. L., Le, T. G., Satyukova, A. S., Glushko, L. A., and Shvartz, V. A., “Miniature rotary blood pumps for use in pediatric cardiac surgery,” Biomed. Eng., 50, 291-295 (2017).
Miller, L. W., Guglin, M., and Rogers, J., “Cost of ventricular assist devices: Can we afford the progress?” Circulation, 127, No. 5, 743-748 (2013).
Galiastov, A. A., Denisov, M. V., Groth, T., and Telyshev, D.V., “A study of the velocity field in the Sputnik left ventricular assist device,” Biomed. Eng., 55, 278-283 (2021).
Denisov, M. V., Walter, M., Leonhard, S., and Telyshev, D. V., “Effects of the design of a rotary blood pump on hemocompatibility,” Biomed. Eng., 54, 327-332 (2021).
Su, B., Chua, LP., and Wang, X., “Validation of an axial flow blood pump: Computational fluid dynamics results using particle image velocimetry,” Artif. Org., 36, No. 4, 359-367 (2012).
Xiao, Z., Tan, J., Wang, S., Yu, Z., and Wu, W., “PIV experimental study on the flow field characteristics of axial flow blood pump under three operating conditions,” J. Engin., 2019, No. 13, 155-158 (2019).
Yang, F., Kormos, R. L., and Antaki, J. F., “High-speed visualization of disturbed pathlines in axial flow ventricular assist device under pulsatile conditions,” J. Thorac. Cardiovasc. Surg., 150, 938-944 (2015).
Porfiryev, A., Markov, A., Galyastov, A., Denisov, M., Burdukova, O., Gerasimenko, A. Y., and Telyshev, D., “Fontan hemodynamics investigation via modeling and experimental characterization of idealized pediatric total cavopulmonary connection,” Appl. Sci., 10, No. 19, 6910 (2020).
Chopski, S. G., Downs, E., Haggerty, C. M., Yoganathan, A. P., and Throckmorton, A. L., “Laser flow measurements in an idealized total cavopulmonary connection with mechanical circulatory assistance,” Artif. Org., 35, 1052-1064 (2011).
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Translated from Meditsinskaya Tekhnika, Vol. 56, No. 1, Jan.-Feb., 2022, pp. 1-5.
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Galiastov, A.A., Denisov, M.V. & Telyshev, D.V. A Study of the Velocity Field in a Modified Design of the Sputnik Left Ventricular Assist Device. Biomed Eng 56, 1–5 (2022). https://doi.org/10.1007/s10527-022-10155-w
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DOI: https://doi.org/10.1007/s10527-022-10155-w