deploying the first member of the second pair such that {TAIL ~ the first member} of the second pair swings from a distal position to a proximal position against the tissue wall of {HEAD ~ the second vessel}; and 
deploying the first member of the second pair such that { TAIL ~ the first member } of the second pair swings from a distal position to a proximal position against the tissue wall of { HEAD ~ the second vessel } ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH