Prosthetic heart valve

摘要

PROSTHETIC HEART VALVE An assembly for implanting a prosthetic heart valve (310) in a patient's body, the assembly comprising: a delivery apparatus comprising an elongated shaft (180); a radially expandable and collapsible prosthetic heart valve (310) mounted on the shaft (180) in a radially collapsed configuration for delivery into the body, the prosthetic heart valve (310) comprising an annular frame (312) and a leaflet structure (314) within the frame (312); wherein the frame (312) comprises a plurality of angularly spaced commissure windows (318) each comprising an enclosed opening (334) between first and second axially oriented side struts (320), and the leaflet structure comprises a plurality of commissure portions (376) that extend outwardly through respective commissure windows (318); and wherein the commissure windows (318) are depressed radially inwardly relative to portions of the frame (312) between adjacent commissure windows (318) when the valve (310) is radially collapsed on the shaft.