endoscope

The first endoscope – an instrument that allows us to peek inside the human body – has been credited to German doctor Philip Bozzini, who in 1805 created a tube he called Lichtleiter (light guiding instrument) to examine the urinary tract, rectum and pharynx.
In 1853, Antione Jean Desormeaux of France developed an instrument specially designed to examine the urinary tract and the bladder.
He named it “endoscope”. And it was the first time this term was used in history.