| 摘要 |
A tri-leaflet heart valve wherein the leaflets have supporting ears adapted to slide in curved tracks provided in an annular body. The leaflets ears are further supported and guided by conical-segment surfaces adjacent the curved grooves. A common stop between two grooves for adjacent leaflets limits the motion of the leaflets as the valve closes. Posts between opposed grooves for each leaflet arrest the motion of a leaflet if the leaflets are closing simultaneously closed position. Each leaflet comprises a substantially planar surface with a central vertex where all three leaflets meet in closed position. Edges of the leaflets adjacent the curved grooves are canted up-stream and are scalloped to form ears which slide in the curved grooves.
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