{HEAD ~ The physician} then dilates {TAIL ~ the hole} through the vessel wall by maneuvering the tapered end 60 of the dilator 56, and introduces the entrance tube 35 into vessel lumen 62 
dilates
{ HEAD ~ The physician } then dilates { TAIL ~ the hole } through the vessel wall by maneuvering the tapered end 60 of the dilator 56 , and introduces the entrance tube 35 into vessel lumen 62
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL 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