Figure 4.

Planar slices through the bovine leaflet model, B300, with 0.30 mm leaflet thickness. The first slice is positioned 1 mm above the top edges of the leaflets. The slices below are spaced at intervals of 3 mm until the last slice—slice F—that is 2 mm below slice E. In this position, the pinching of the leaflets between adjacent frame struts is clear.