A surgical instrument includes {HEAD ~ a first member} that has an opening in its distal region for admitting tissue and that is rotatable with {TAIL ~ respect} to a base from which the first member extends to allow the rotational orientation of the opening to be selectively changed with respect to the axis of the instrument 
is rotatable with
A surgical instrument includes { HEAD ~ a first member } that has an opening in its distal region for admitting tissue and that is rotatable with { TAIL ~ respect } to a base from which the first member extends to allow the rotational orientation of the opening to be selectively changed with respect to the axis of the instrument
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL 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 OTH OTH OTH OTH OTH OTH OTH OTH