The surgical port includes a hollow tubular body which is inserted through {HEAD ~ an intercostal opening} in the body wall extending into the thoracic cavity with an annular flange at {TAIL ~ one end} of the tubular body projecting radially outward and engaging the body wall adjacent to the opening 
The surgical port includes a hollow tubular body which is inserted through { HEAD ~ an intercostal opening } in the body wall extending into the thoracic cavity with an annular flange at { TAIL ~ one end } of the tubular body projecting radially outward and engaging the body wall adjacent to the opening
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH