Leaflet attachment mechanism and straight attachment struts

A prosthetic valve comprising:

• a leaflet frame configured to be transitioned from a collapsed state having a first diameter to an expanded state having a second diameter that is larger than the first diameter, the leaflet frame having an inlet end and an outlet end and defining a longitudinal axis, the leaflet frame including,
• a plurality of frame members defining a framework forming a pattern of cells, the plurality of frame members including a plurality of leaflet attachment members configured to be coupled to first and second sides of one or more leaflets of a leaflet construct, each of the plurality of leaflet attachment members having a first end portion at which each of the plurality of leaflet attachment members intersects with another one of the plurality of frame members, a second end portion at which each of the plurality of leaflet attachment members intersects with another one of the plurality of frame members, and an intermediate portion between the first and second end portions, the intermediate portion of each of the plurality of leaflet attachment members having a first curvature when the leaflet frame is in the collapsed state and a second curvature when the leaflet frame is in the expanded state, the first curvature being greater than the second curvature.