What were the early medical endoscopes like?

The first endoscope in the world was invented by French doctor de Suomio in 1853. Endoscope is a commonly used medical instrument. It consists of a flexible part, a light source and a group of lenses. When in use, the endoscope is introduced into the organ to be pre-examined, so that the changes of relevant parts can be directly peeped.

The earliest endoscope was used for rectal examination. The doctor inserted a hard tube into the patient's anus and observed the rectal lesions with the light of candles. The diagnostic data obtained by this method is limited, and the patient is not only very painful, but also has a great risk of perforation because of the hard instrument. Despite these shortcomings, endoscopy has been continuously applied and developed, and many instruments with different uses and types have been gradually designed.

From 65438 to 0973, laser technology was applied to the treatment of gastrointestinal bleeding, and gradually became one of the means of endoscopic treatment. 198 1 year, endoscopic ultrasound technology was successfully developed. This new development combines advanced ultrasound technology with endoscope, which greatly improves the accuracy of pathological diagnosis.