Prosthetic valves, frames and leaflets and methods thereof

A prosthetic valve, comprising:

• a support structure having a tubular shape and defining a plurality of leaflet windows, each leaflet window defining a first side, a second side, and a base, each of the plurality of leaflet windows being trapezoidal-shaped;
• and
• a plurality of leaflets extending from the plurality of leaflet windows, each leaflet having a first leaflet side coupled to the first side of a respective leaflet window of one of the leaflet windows, a second leaflet side opposite the first leaflet side that is coupled to the second side of the respective leaflet window, a leaflet base that is coupled to the base of the respective leaflet window, and a leaflet free edge opposite the leaflet base, the leaflet base being flat and defining a continuous line of attachment of the leaflet base to the base of the respective leaflet window.

A prosthetic valve, comprising:

• a support structure having a tubular shape and defining a plurality of leaflet windows, each leaflet window defining a first side, a second side, and a base, the support structure including an inner valve frame and an outer valve frame;
• and
• a plurality of leaflets extending from the plurality of leaflet windows, each leaflet having a first leaflet side coupled to the first side of a respective leaflet window of one of the leaflet windows, a second leaflet side opposite the first leaflet side that is coupled to the second side of the respective leaflet window, a leaflet base that is coupled to the base of the respective leaflet window, and a leaflet free edge opposite the leaflet base, the leaflet base being flat and defining a continuous line of attachment of the leaflet base to the base of the respective leaflet window.