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Concept
Endoscope
Summary
An endoscope is an inspection instrument composed of image sensor, optical lens, light source and mechanical device, which is used to look deep into the body by way of openings such as the mouth or anus. A typical endoscope applies several modern technologies including optics, ergonomics, precision mechanics, electronics, and software engineering. With an endoscope, it is possible to observe lesions that cannot be detected by X-ray, making it useful in medical diagnosis. Endoscopes use tubes which are only a few millimeters thick to transfer illumination in one direction and high-resolution images in real time in the other direction, resulting in minimally invasive surgeries. It is used to examine the internal organs like the throat or esophagus. Specialized instruments are named after their target organ. Examples include the cystoscope (bladder), nephroscope (kidney), bronchoscope (bronchus), arthroscope (joints) and colonoscope (colon), and laparoscope (abdomen or pelvis). They can be used to examine visually and diagnose, or assist in surgery such as an arthroscopy.
"Endo-" is a scientific Latin prefix derived from ancient Greek ἐνδο- (endo-) meaning "within", and "-scope" comes from the modern Latin "-scopium", from the Greek σκοπεῖν (skopein) meaning to "look at" or "to examine".
The first endoscope was developed in 1806 by German physician Philipp Bozzini with his introduction of a "Lichtleiter" (light conductor) "for the examinations of the canals and cavities of the human body". However, the College of Physicians in Vienna disapproved of such curiosity. The first effective open-tube endoscope was developed by French physician Antonin Jean Desormeaux. He was also the first one to use an endoscope in a successful operation.
After the invention of Thomas Edison, the use of electric light was a major step in the improvement of endoscope.
Official source
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