Результаты поиска по 'Valve prosthesis':
Найдено статей: 2
  1. Ovcharenko E.A., Klyshnikov K.U., Savrasov G.V., Nyshtaev D.V., Glushkova T.V.
    The choosing of optimal cell parameters of transcatheter aortic valve prosthesis
    Computer Research and Modeling, 2014, v. 6, no. 6, pp. 943-954

    This paper presents the analysis of dependences between frame basic cell geometry parameters and function via finite element analysis. The simplified models of frame cell with varied strut width, thickness and quantity in a circle was researched to evaluate radial forces, maximum stress and strain, permanent residual strain and pinching load forces. The outcomes of this study might help in the development of new artificial heart valves and during the analysis of existing in-clinical TAVI prostheses.

    Keywords: Valve prosthesis, aorta, FEA, cell.
    Views (last year): 1. Citations: 1 (RSCI).
  2. Ovcharenko E.A., Klyshnikov K.U., Savrasov G.V., Nyshtaev D.V., Kudryavtseva Y.A.
    Choice of design of transcatheter aortic valve prosthesis frame based on finite element analysis
    Computer Research and Modeling, 2015, v. 7, no. 4, pp. 909-922

    This article presents an analysis of the impact of the transcatheter prosthesis frame design features on the results of its implantation in the aortic root model. In this paper we analyzed the various approaches to the design of such structures, as well as modifications in order to improve their functional characteristics during the implantation. As a general method for obtaining the results of interaction of the objects was used finite element method with nonlinear materials description and analysis of the main parameters: the stress-strain state, radial and friction forces.

    Keywords: Valve prosthesis, aorta, FEA, frame design.
    Views (last year): 3. Citations: 1 (RSCI).

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