An endoscope is a commonly used medical device consisting of a bendable part, a light source and a set of lenses. It enters the human body through the natural orifice of the human body or through a small incision made by surgery. When in use, the endoscope is introduced into the pre-examined organ, and the changes in the relevant parts can be directly observed.
The medical endoscope system generally has the following five parts:
1.Endoscope: mirror body, mirror sheath. The mirror body is composed of an objective lens, an image transmission element, an eyepiece, an illumination element, and auxiliary elements.
2.Image display system: CCD photoelectric sensor, display, computer, image processing system.
3.Lighting system: lighting source (xenon lamp cold light source, halogen lamp cold light source, LED light source), beam transmission.
4.Artificial insufflation system: connect the insufflation machine to the carbon dioxide cylinder, unscrew the valve on the cylinder, and then turn on the insufflation machine. According to the needs of the operation, select the pressure preset value. When the intra-abdominal pressure exceeds or falls below the set When the value is reached, the fully automatic carbon dioxide insufflation machine can automatically start or stop gas injection.
5.Liquid pressurization system: systems such as joint pumps, uterine distention pumps, and bladder pumps are mainly used to pressurize liquids into cavities, and then perform operations in the cavities through instruments.
Application and Classification of Medical Endoscopy
According to the classification of its imaging structure, it can be roughly divided into three categories: rigid tube built-in mirror, optical fiber (can be divided into soft mirror and hard mirror) endoscope and electronic endoscope (can be divided into soft mirror and hard mirror)
Classified by its function:
1.Endoscopes for the digestive tract：Rigid tube esophagoscope, fiber esophagoscope, electronic esophagoscope, ultrasonic electronic esophagoscope; fiber gastroscope, electronic gastroscope, ultrasonic electronic gastroscope; fiber duodenoscope, electronic duodenoscope; fiber enteroscope, electronic enteroscope ; fiber colonoscopy, electronic colonoscopy; fiber sigmoidoscopy and rectoscopy.
2.Endoscopes for the Respiratory System：Rigid laryngoscope, fiberoptic laryngoscope, electronic laryngoscope; fiberoptic bronchoscope, electronic bronchoscope.
3.Endoscope for peritoneal cavity：There are rigid tube type, fiber optic type, and electronic surgical laparoscope.
4.Endoscope for biliary tract：Rigid tube choledochoscope, fiber choledochoscope, electronic choledochoscope.
5.Endoscopes for the urinary system：Cystoscope: It can be divided into cystoscope for inspection, cystoscope for ureteral intubation, cystoscope for operation, cystoscope for teaching, cystoscope for photography, cystoscope for children and cystoscope for women. Ureteroscopy. nephroscopy.
6.Endoscopes for Gynecology：Hysteroscopy, artificial abortion mirror, etc.
7.Endoscopes for joints：Arthroscopy.
Features of medical endoscopes
1.Reduce endoscopic inspection time and quickly capture;
2.With video recording and storage functions, it can store the images of lesion parts, which is convenient for viewing and continuous comparison observation;
3.The color is vivid, the resolution is high, the image is clear, the image has been specially processed, and the image can be enlarged for easy observation;
4.Using the screen to display images, one person can operate and multiple people can watch at the same time, which is convenient for disease consultation, diagnosis and teaching
Post time: May-09-2023