Do you know the classification and development of endoscopes?
An endoscope is a tube equipped with a light that can be passed through the mouth into the stomach or through other natural channels into the body. Endoscopes are very useful to doctors because they can see lesions that cannot be shown by X-rays. An endoscope, for example, allows doctors to look for ulcers or tumors in the stomach and determine the best course of treatment.
There are many different kinds of endoscopes, and their classification methods are different. Generally speaking, there are three kinds of classification methods that are more common. In terms of market sales, the most widely used categories can be divided into two categories: hard lens and flexible soft lens.
In terms of application, it can be divided into two categories, namely, industrial endoscope and medical endoscope.
About the types of industrial endoscopes, from the imaging form is divided into: optical endoscope, optical fiber endoscope, electronic endoscope, CCD video endoscope, CMOS video endoscope. Endoscope light source can be divided into high-frequency fluorescent lamp endoscope, optical fiber halogen lamp endoscope and LED endoscope
According to its development and imaging structure, medical endoscopy can be roughly divided into three categories: rigid tube endoscopy, optical fiber (hose) endoscopy and electronic endoscopy.
Medical examination uses endoscope to have many different kinds, its classification method each has different, generally speaking more general have the following three kinds of classification method. In terms of market sales, the most widely used categories can be divided into two categories: hard lens and flexible soft lens.
Development Factors
Endoscopy is one of the main diagnostic methods of digestive tract diseases. Endoscope's real development began in modern times, generally can be divided into its development stage: rigid tube endoscope, semi-flexable endoscope, fiber endoscope, television endoscope and other stages.
I. Rigid Endoscopy Stage (1806-1932)
The rigid endoscope, pioneered by German PhilipBozzini, consists of a candle and a series of lenses for bladder and urethra examinations.
Ii. Semi-flexion Endoscopy stage (1932-1957)
In 1928, Schindler cooperated with GeorgWolf, an excellent instrument maker, to develop the gastroscope. After the final success, Schindler made many improvements, with more complete and practical functions.
Iii. Optical fiber Endoscope stage (1957 to present)
In 1954, Hopkins and Kapany in the United Kingdom invented the optical fiber technology.
In 1957, Hirschowitz and his assistants demonstrated their own fiberoptic endoscope at the American Society of Gastroscopy.
In the early 1960s, Japan added biopsy device and camera on the basis of fiberoptic gastroscope.
In recent decades, with the continuous improvement of accessory devices, fiber endoscopy can be used not only for diagnosis, but also for surgical treatment.
Iv. Television Endoscope Era (after 1983)
In 1983 WelchAllyn successfully developed the electronic camera endoscope.
