According to foreign media reports, endoscopes have fundamentally changed medical treatment. Doctors can use a micro camera attached to the end of the line thickness of the cord, and they can spy on the internal organs of patients without major surgery. At present, researchers at Stanford University in the United States have recently developed a new type of endoscope, which is the thinnest diameter endoscope in the world so far, and can even detect single cells in patients.
American scientists have newly developed the world's thinnest endoscopic camera, which can observe and photograph the single cell structure of the human body
The endoscope with a thin needle will potentially capture single cancer cells and diseased organs, which will avoid the damage caused by the use of larger diameter endoscopes into the human body, such as brain tissue. At the same time, this super slim endoscope will form smaller scars than a laparoscope.
Conventional endoscopes are made of multiple optical fibers, they can illuminate the diseased area of ​​the human body, and record the image back to the observer. The greater the number of fibers in the endoscope, the higher the clarity of the image, but more fiber bundles will make the endoscope thicker.
A research team led by Stanford Kahn built an endoscope using a multimode fiber, which can carry light along a variety of different routes. The research team's 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.
In order to achieve this, Kahn led the research team to build a device-a spatial light modulator, the modulator can continue to send a laser beam to the fiber in a random path, due to the random path, once the light leaves the fiber, it will form a scattered Spot image, some light is fed back to the fiber.
A computer program designed by the research team can 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 the previous expectations, to be able to observe objects of a single cell size.
Kahn pointed out at a news conference that he has discovered many applications of endoscopes in imaging, and they can study the detailed condition of cells when they perform surgery in the human body.
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