The development history of endoscopy-the stage of rigid endoscopy (1806-1932) Part3
Rigid endoscope with optical system
In 1879, Berlin urologist Max Nitze invented the first endoscope with an optical system (the cystoscope). Its front end contained a prism. The platinum wire ring was overheated with electric current and used as a light source, which was Bruck’s The lighting method is the same as the "Lichtleiter", the endoscope is only used for the urinary system. Nitze circulates ice water in the bladder to avoid thermal burns. Because the endoscope can obtain clearer images, Nitze also uses it to take pictures. Later, Nitze introduced an operating tube into his cystoscope, through which a ureteral probe can be inserted for operation. About 10 years later, two doctors, Nitze and Leiter, invented the urethral cystoscope.
Endoscope developed by Dr. Nitze in Berlin 21. In 1880, the famous scientist Thomas Alva Edison invented the incandescent lamp. Not only solved all previous lighting problems, but also set a milestone for the development of endoscopy science.
