The detailed principle of medical digestive endoscope

Endoscopes can be entered through natural openings in the body or through small incisions made surgically.

The first endoscopes were made of rigid tubes and were invented more than 100 years ago. Although they have gradually improved, they are still not widely used. Later, in the 1950s, endoscopes were made of soft tubes that could easily bend around corners in the body. In 1965, Harold has perkins installed in the endoscopic cylindrical lens, make the vision more clearly, today's endoscope usually have two glass tube, the light passing through one of them into the body, the doctor through another tube or through a video camera to observe, some of the endoscope and even tiny sensors of integrated circuits, The observed information is fed back to the computer.

Picture: An early endoscope made in 1870. It replaces a rubber hose with a hard tube.

Some surgeries can be done with an endoscope and a laser. The fiberoptic fiber of an endoscope delivers a laser beam to cauterize a tumor or tumor and seal off a bleeding blood vessel.

To put it simply, the endoscope has many reflective surfaces, and the information inside the body can be seen by the doctor through multiple reflections

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