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It's a mirror—Fundamentals of Endoscopy
Release time:
2025-03-12 09:39
Concept
An endoscope is a commonly used medical device. It consists of a light guide structure and a set of lenses. It enters the human body through natural orifices or small incisions, and imaging is performed outside the device for the examination and surgical treatment of human organs or tissues. The commonly used laparoscope in the bed is a rigid endoscope, which is a device that uses a series of optical columnar crystal lenses to transmit images to the eyepiece and performs imaging through a connected independent camera.
Classified by imaging principle: Optical lens (columnar lens), fiber lens, electronic lens
Classified by function: Laparoscopes, cystoscopes, arthroscopes, gastrointestinal endoscopes, biliary endoscopes, etc.
Classified by morphology: Rigid endoscopes, flexible endoscopes
Classified by Applications: Laparoscopes, resectoscopes, sinus endoscopes, etc.
Classified by angle: The description of the angle mostly refers to rigid endoscopes. According to the requirements of the inspection site, different viewing angles are provided, which can be divided into 0°, 12°, 30°, 70°, etc., and are used in different surgical departments.
Structure of rigid endoscopes
Endoscopes have a variety of angles to choose from. We can know the angle of the mirror through different color markings, as follows:
After seeing so many lenses with different angles, you might wonder if it is possible to combine lenses of various angles into one? In recent years, a new lens—the Chameleon lens (Endo Cameleon)—has emerged. It can adjust the viewing angle between 0° and 120°. By rotating the objective lens at the front end of the lens, seamless switching of the viewing angle can be achieved. Compared with the existing 10mm laparoscopic lens, it greatly expands the range of applications.!
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