The catheter 10 shown in FIG 4 has a rounded tip 26 of rubber or {HEAD ~ plastic} similar to {TAIL ~ the material} of the tube 12 and is devoid of the metal cap 15 
similar to
The catheter 10 shown in FIG 4 has a rounded tip 26 of rubber or { HEAD ~ plastic } similar to { TAIL ~ the material } of the tube 12 and is devoid of the metal cap 15
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH