The oval shaped obturator 100 is provided for installing a trocar tube or cannula 120 including a tubular body 122 with a relatively large diameter, e.g., 20 mm., compared with {HEAD ~ the intercostal spacing} of {TAIL ~ the adjacent ribs} in the body wall 
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The oval shaped obturator 100 is provided for installing a trocar tube or cannula 120 including a tubular body 122 with a relatively large diameter , e.g. , 20 mm . , compared with { HEAD ~ the intercostal spacing } of { TAIL ~ the adjacent ribs } in the body wall
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 OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH