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scientific edition of Bauman MSTU

SCIENCE & EDUCATION

Bauman Moscow State Technical University.   El № FS 77 - 48211.   ISSN 1994-0408

Analysis of Contemporary Methods for Designing Rotary Type Ventricular Assist Devices

# 02, February 2015
DOI: 10.7463/0215.0755225
Article file: SE-BMSTU...o268.pdf (1587.37Kb)
authors: E.P. Banin, A.M. Guskov, F.D. Sorokin

The research object is inlet apparatus of ventricular assist device, namely inlet cannula and straightener.
The purpose of the study is to reveal features of blood flow in inlet apparatus of ventricular assist device. The mathematical modeling is carried out by computational fluid dynamics analysis in a stationary setting.
The first part of study concerns the analysis of existing approaches to the numerical and experimental studies in designing the ventricular assist devices of rotary type. It reveals the features of each approach for their further application in practice. The article presents an original design of developed hydraulic test bench to verify the results of mathematical modeling. Analysis of foreign authors’ studies showed that there is no enough attention paid to design of the adjacent pump assemblies of ventricular assist device. The second part of study considers direct mathematical modeling of input apparatus of ventricular assist device. The study examined straightener with three or four blades. Mathematical modeling has revealed the presence of potentially dangerous stagnation zones and essential asymmetry of the outlet flow from the input unit. The found features must be taken in consideration in designing the ventricular assist device pumps. In the future we plan to use obtained data to create a parametric model of the rotor and the diffuser considering the abovementioned features.

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Publications with keywords: mathematical modeling, visualisation, ventricular assist device, 3D-printing, mechanical circulatory support, experimental verification
Publications with words: mathematical modeling, visualisation, ventricular assist device, 3D-printing, mechanical circulatory support, experimental verification
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