{HEAD ~ Trocar valves} may be removably attached to the proximal end of the expansion member to permit the apparatus to be used as {TAIL ~ a trocar system} in laparoscopic procedures where the patients abdomen has been insufflated 
{ HEAD ~ Trocar valves } may be removably attached to the proximal end of the expansion member to permit the apparatus to be used as { TAIL ~ a trocar system } in laparoscopic procedures where the patients abdomen has been insufflated
HEAD HEAD HEAD HEAD HEAD HEAD 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 TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH