{TAIL ~ The cannula} or probe tip 14 is a rigid, tubular sleeve preferably constructed of {HEAD ~ surgical steel} 
{ TAIL ~ The cannula } or probe tip 14 is a rigid , tubular sleeve preferably constructed of { HEAD ~ surgical steel }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD