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