Figure 1:

Heart Valve Leaflet Construction. $R_c$: radius of the commissures, $H$: leaflet height, $H_s$: commissure height, and $\gamma$: angle between neighboring coaptation surfaces in (a). ${\zeta }_b$: tangent of the leaflet underside at the midpoint of the free edge, ${\theta }_b$: the angle the leaflet belly makes with the vertical, and $R_b$: radius of the base in (b).