Influence of Material Thickness to the Dynamic Mechanical Properties of Bioprosthetic Heart Valve

Xu Huang; Quan Yuan; Hua Cong; Hai Bo Ma; Xin Ye

doi:10.4028/www.scientific.net/AMR.502.479

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Influence of Material Thickness to the Dynamic Mechanical Properties of Bioprosthetic Heart Valve
p.479

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 502Influence of Material Thickness to the Dynamic...

Influence of Material Thickness to the Dynamic Mechanical Properties of Bioprosthetic Heart Valve

Abstract:

The paper constructs one type of bioprosthetic valve leaflets’ parametric model via computer aided design, a series of accurate parameters of the bioproshtetic heart valve, such as radius of the sutural ring, height of the supporting stent and inclination of the supporting stent, are determined. Numerical simulation is used to determine the effect of one shape design on the mechanical performance of the bioprosthetic valve leaflet. The stress with a shape under the same load is analysed and the thickness of the leaflets 0.5mm and 0.6mm is compared by us. We creat a ellipsoidal surface in accordance with geometrical features. The experimental results of the finite element analysis show that stress distribution of the same bioprosthetic heart valve leaflets with different thickness is different. The maximal primary stress with the thickness of 0.5mm is lower than the others. This work is very helpful to manufacture reasonable shaped valvular leaflets and to prolong the lifetime of the bioprosthetic heart valve.

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Periodical:

Advanced Materials Research (Volume 502)

Pages:

479-484

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.502.479

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Online since:

April 2012

Authors:

Xu Huang, Quan Yuan, Hua Cong, Hai Bo Ma, Xin Ye

Keywords:

Bioprosthetic Heart Valve, Finite Element Analysis (FEA), Shape Design, Stress Distribution

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References

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