| http://www.w3.org/ns/prov#value | - Prior to grasping a tissue, such as a leaflet, the flap 240 is fully visible and is positioned having a maximum angle ??, as illustrated in FIG. 31A. When a leaflet LF is grasped between the proximal and distal elements 16, 18, the leaflet LF presses the flap 240 toward the engagement surface 50.
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