| 摘要 |
<p>A heart valve prosthesis (10) having improved leaflet occluders (18). A heart valve prosthesis (10) comprises a valve body (12) and a pair of leaflets (18). The valve body (12) includes an interior surface (14) that defines a central passage (16) for conducting blood flow therethrough. The leaflets (18) are pivotably mounted to the valve body (12) for pivotable motion within the central passage (16) between an open and a closed position. Each leaflet is formed from at least two unique materials (46, 51). Preferably, at least an outer arcuate edge (24) of each leaflet is formed from a softer, more pliable material (51) to better approximate the characteristics of natural heart valve tissue.</p> |
