title: [Temporal characteristics of the movement of the cut-off elements of artificial heart valves in a pulsing flow].
abstract: A comparative investigation of time characteristics of the movement of artificial heart valves with spherical, hemispherical and lentil-shaped obturative elements under non-stationary conditions was carried out. It has been found that it is practically impossible to avoid the delay in the valve closing and opening, as well as the regurgitation phenomena, on the valve prothesis, due to the inertia of obturative elements and attached masses. A searching for new models of the heart valves should go on.
mesh_terms: D001021:Aortic Valve; D006350:Heart Valve Prosthesis; D006801:Humans; D008328:Man-Machine Systems; D008433:Mathematics; D008943:Mitral Valve; D008961:Models, Structural; D011312:Pressure; D013997:Time Factors
vernacular_title: Issledovanie vremennýkh kharakteristik dvizheniia zapiraiushchikh élementov iskusstvennykh klapanov serdtsa v pul'siruiushchem potoke.