Evacuation and {HEAD ~ collapse} of {TAIL ~ the fluid bladders} 24, 26, or some other resilient feature of the end effector 14, causes the anvil 12 to open 
of
Evacuation and { HEAD ~ collapse } of { TAIL ~ the fluid bladders } 24 , 26 , or some other resilient feature of the end effector 14 , causes the anvil 12 to open
OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH