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Development of adaptive control system of artificial ventricles of the heart

DOI 10.18127/j15604136-201906-04


A.V. Shcherbachev – Post-graduate Student, Department «Medical and Technical Information Technology» (BMT-2), Bauman Moscow State Technical University
I.A. Kudashov – Ph.D. (Eng.), Associate Professor, Department «Medical and Technical Information Technology» (BMT-2), Bauman Moscow State Technical University
S.I. Shchukin – Dr.Sc. (Eng.), Professor, Head of Department«Medical and Technical Information Technology» (BMT-2),  Bauman Moscow State Technical University
G.P. Itkin – Dr.Sc. (Biol.), Professor, Head of the Laboratory of Biotechnical Systems, FSBI «National Medical Research Center for Transplantology and Artificial Organs named after academician V.I. Shumakov Ministry of Health of Russia» (Moscow)

The main physiological function of the heart is to inject blood into the circulatory system. At the same time, one of the most impor-tant characteristics of the work of the heart is the regulation of cardiac output, determined by the stroke volume and heart rate. Un-der normal conditions, the heart pumps 5-6 liters of blood in 1 minute, and with moderate load, cardiac output should double [1].
The developed biotechnical system, based on the information of the AHV volume, will control the AHV membrane movement in-cluded in the hydrodynamic stand simulating the vascular system. The AHV control unit should ensure the implementation of the Frank-Starling mechanism, i.e. regulation of the stroke emission depending on the AHV end-diastolic volume.
This mechanism is based on the direct linear dependence of the end-diastolic volume and the heart's stroke work.
To solve the problem of continuous determination of blood volume in AHV with a single reduction in the projected system, the volume measuring block of an AHV stroke emission is used.
The studies were carried out on an experimental hydrodynamic test bench, the scheme of which is given later in the work and showed the effectiveness of the chosen method of AHV measuring the volume and the proposed design.

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