System and {HEAD ~ method} to determine the location and {TAIL ~ orientation} of an indwelling medical device 
System and { HEAD ~ method } to determine the location and { TAIL ~ orientation } of an indwelling medical device
OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH