Heart valve prosthesis

摘要

A heart valve prosthesis comprises a valve ring having an opening for the flow of blood, a valve poppet floatingly mounted during opening and closing. For floatingly containing the poppet, and there is provided a single upper support and a lower support structure. The upper support has a flat portion supporting the poppet that bears thereagainst with a depression made in the top side of the poppet. The lower support structure has tabs for supporting the poppet so that the poppet is in the surface-to-the surface contact with the upper support and tabs of the lower support structure when the poppet is in the open position.