Key result
Structural mechanics analysis evaluated the minimum leaflet thickness for the structural durability of the mechanical heart valve prosthesis to be 0.6 mm.
Computational structural analysis indicates that a minimum leaflet thickness of 0.6mm is required for the structural durability of a mechanical heart valve prosthesis with a flat leaflet.
May guide mechanical valve design parameters; leaves open clinical translation without in vivo durability data.
This paper addresses the basic concept of MDO methodology and the structural analysis that should be performed in the design process of a mechanical heart valve prosthesis with flat leaflet using MDO methodology. In the structural design of the mechanical heart valve (MHV) prosthesis, the fluid mechanics analysis is executed for the blood flow passing through the leaflets of a mechanical heart valve prosthesis. Thereafter, the rigid body dynamics analysis of the leaflet motion is performed to obtain the structural condition for the structural mechanics analysis of the deformed leaflet. Then the structural mechanics analysis of the deformed leaflet follows to confirm the minimum thickness of the leaflet for the structural durability of the mechanical heart valve prosthesis. This paper shows that the minimum leaflet thickness can be evaluated to be 0.6mm among the suggested thicknesses.
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Youngjoo Kwon (2003) studied Mechanical heart valve prosthesis design. Structural analysis using MDO methodology was evaluated on Minimum leaflet thickness for structural durability. Structural mechanics analysis evaluated the minimum leaflet thickness for the structural durability of the mechanical heart valve prosthesis to be 0.6 mm.