For carring out the measuring, {HEAD ~ a transmitting fiber optic} and a receiving fiber optic in the endoscope are guided separately to {TAIL ~ respective separate optic modules} at the front end of the endoscope 
For carring out the measuring , { HEAD ~ a transmitting fiber optic } and a receiving fiber optic in the endoscope are guided separately to { TAIL ~ respective separate optic modules } at the front end of the endoscope
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH