Electronic endoscopy was first created and used clinically in 1983 by the American Welch Allyn Company. The characteristic of the electronic endoscope is that it does not transmit images through prisms or optical fibers. Instead, it converts light energy into electrical energy through a CCD called a "mini camera" installed on the top of the endoscope, and then processes the image to displayed on the TV monitor. Therefore, the mechanism of electronic endoscopes transmitting images is completely different from that of traditional endoscopes. Through video processing, images can be processed in a series of ways and images can be stored and reproduced in various ways. Foreign scholars regard electronic endoscopes as It is the third milestone in the history of digestive system development.
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The device used in medicine to directly observe the internal cavities of human organs is called an endoscope, or endoscope for short.
The English word "endoscopy" is "endoscopy", which originates from the Greek word. It is a combination of the letter "endo" (meaning inside) and the verb "skopein" (meaning to observe). Its original meaning is to peer into the deep cavities of the human body. a way. Since Bozzini in Germany pioneered the use of candlelight as a light source and a thin iron tube to peer into the urinary tract in 1805, medical endoscopy has developed rapidly, and the process can be roughly divided into four periods.