It should be noted that the outer diameter of the dilator at its constant diameter portion is close to {HEAD ~ the outer diameter} of {TAIL ~ the flexible tubing} 35 so that tubing 35 is guided through the wall of the vessel by the dilator 
of
It should be noted that the outer diameter of the dilator at its constant diameter portion is close to { HEAD ~ the outer diameter } of { TAIL ~ the flexible tubing } 35 so that tubing 35 is guided through the wall of the vessel by the dilator
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH