Transcatheter pulmonary ball valve assembly
A heart valve assembly has a frame comprising an anchoring section, a generally cylindrical leaflet support section, and a neck section that transitions between the anchoring section and the valve support section. The anchoring section has a ball-shaped configuration defined by a plurality of wires that extend from the leaflet support section, with each wire extending radially outwardly to a vertex area where the diameter of the anchoring section is at its greatest, and then extending radially inwardly to a hub. A plurality of leaflets are stitched to the leaflet support section. The heart valve assembly is delivered to the location of a native pulmonary trunk, the vertex area of the anchoring section is deployed into the native pulmonary arteries such that the vertex area is retained in the pulmonary arteries, and then the leaflet support section is deployed in the pulmonary trunk.
1. A method for securing a heart valve assembly in the pulmonary trunk of a human heart, comprising the steps of:
providing a heart valve assembly comprising:
a frame comprising an anchoring section, a generally cylindrical leaflet support section, and a neck section that transitions between the anchoring section and the leaflet support section, the anchoring section having a circumferential vertex area defined by a plurality of wires that extend from the leaflet support section, with each wire extending radially outwardly to the vertex area, and then extending radially inwardly to a hub, the vertex area having a circumferential diameter, the anchoring section further including a plurality of umbrella segments that extend radially outwardly from the hub and having a circumferential diameter that is greater than the circumferential diameter of the vertex area; and
a leaflet assembly having a plurality of leaflets that are stitched to the leaflet support section;
delivering the heart valve assembly to the location of a native pulmonary trunk:
deploying the vertex area of the anchoring section into the native pulmonary arteries such that the vertex area is retained in the pulmonary arteries with the umbrella segments resting on the pulmonary artery; and
deploying the leaflet support section in the pulmonary trunk.