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According to foreign media reports, the endoscope has fundamentally changed the medical treatment. The doctor can use a miniature camera to attach the end of the wire thickness of the wire, and it is possible to spy on the internal organs of the patient without major surgery. At present, researchers at Stanford University in the United States have recently developed a new type of endoscope, which is the world's smallest diameter endoscope and can even detect individual cells in patients. The latest development of the world's most slim endoscopic camera by American scientists, the endoscope that can observe the thickness of a single cell structure of a human body will potentially capture a single cancer cell and a diseased organ, which will avoid the use of a larger diameter endoscope to enter the body. The damage, for example: brain tissue. At the same time, this super slim endoscope will create fewer scars than the laparoscope.
Conventional endoscopes are made of multiple optical fibers that illuminate areas of the human body and record images back to the observer. The greater the number of fibers in the endoscope, the higher the sharpness of the image, but more fiber bundles will make the endoscope thicker.
A research team led by Kahn of Stanford University built an endoscope using a multimode fiber that can carry light along a variety of different routes. The team's point of view is to use a single fiber to illuminate objects and transmit data. The challenge with this technology is information interference, because light will travel along different paths.
To achieve this, Kahn led the research team to build a device, a spatial light modulator, that continuously transmits a laser beam onto the fiber in a random path. Due to the random path, once the light leaves the fiber, it will form a dispersion. Spot image, some light is fed back to the fiber.
A computer program designed by the research team was able to analyze the speckle images fed back to the fiber and use them to form an image. This technology will increase the resolution of the image, even far beyond what was previously expected, to be able to observe objects of a single cell size.
Kahn pointed out at a press conference that he has discovered many applications of endoscopes in imaging, and they can study the details of cells when they perform surgery in the human body.