Working principle and use of electronic endoscope:

The whole electronic endoscopy system mainly consists of three main parts: endoscopy, video information system center and television monitor. In addition, CCD coupled cavity mirror, cavity cold lighting system (currently LED light source), video processing system, and display printing system are the main structural components of the electronic endoscope. The electronic endoscope is also equipped with some auxiliary devices, such as video recorder, camera, suction device, keyboard for input of various information and various disposal devices for diagnosis and treatment. Electronic endoscope plays a very important role in the diagnosis and treatment of endoscopy rooms in large and medium-sized hospitals in China. It has the advantages of high resolution, easy diagnosis, small diameter and long service life. The main disadvantage is easy to damage, general users can not repair, manufacturers high maintenance costs.

From the detailed component composition, the electronic endoscope mainly includes the tip bending part, the insertion part, the operation part, the electrical connector part. The apex bending part is the most front end of the endoscope, which is composed of water/air supply nozzle, guide beam, objective lens, pliers pipe outlet, bending rubber, etc. Outside the insertion part is a graduated outer skin, and inside it is wrapped with guide beam, image guide beam, water feed/feed pipe, pliers pipe and drum wheel wire. The operation department is the part of the doctor's hand-held operation during examination and treatment, which mainly includes the Angle control rotor, clamp lock, function button, suction piston, water/air piston, pliers pipe inlet, etc. The electrical connector is a part of the electronic endoscope connecting the cold light source and the image processing system. It is composed of an electrical connector, a light guide connector, a water/air supply connector and an suction connector. In the diagnosis and treatment activities of the most frequent parts: one is the operation department, including air/water supply button, suction button, live pick up channel, Angle button and so on. The second is the mirror body. The mirror body is a flexible insert tube, made of wire mesh and snake steel tube. The guide beam, guide beam, biopsy/suction channel, air/water injection pipe and steel wire for controlling Angle are accommodated in the diameter less than 1cm. External polyamine ester plastic pipe, this pipe is sealed and corrosion resistant, to prevent water and gastric juices from entering and corrosion. Once these two frequently working parts are damaged, professionals must be asked to use special tools and special accessories to repair, high cost, long time. Therefore, the correct operation and careful maintenance, to prevent and reduce the failure of electronic endoscope, prolong its service life is of great significance.