The surgical port generally comprises {HEAD ~ a hollow, thin walled flexible tubular body} provided with {TAIL ~ a thin walled flexible annular flange} at one end of the tubular body 
provided with
The surgical port generally comprises { HEAD ~ a hollow , thin walled flexible tubular body } provided with { TAIL ~ a thin walled flexible annular flange } at one end of the tubular body
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH