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Endoscopic Instrument According To Use
Nov 06, 2017

Endoscopic Instrument According to use

The development of the domestic endoscope industry in recent years is very fast, and can be divided into two major categories of industrial endoscopes and medical electronic video endoscopes, of which medical endoscopes are now widely in the hospital clinics throughout the country Use, and can be divided into four categories according to use and function.

The first, the traditional endoscope, the emergence of traditional endoscopy was a hot spot, but this also needs to be further improved in light. He can make the patient less painful during the examination, and the easier operation of the colonoscope is an important topic. To make the patient more comfortable, a device that can monitor the shape and position of the colonoscope during colonoscopy has been used clinically. The device works on the principle of magnetism. The coil inserted into the catheter generates a magnetic force. The processor is very sensitive to the magnetic force of each coil and produces an endoscopic image on the display.

The second, ultrasound endoscopy, uses a multi-energy transducer to obtain more sensitive low-frequency sonograms and more accurate high-frequency sonograms. Improve fine needle aspiration cytology, a variety of small probe ultrasound endoscopy and broad-spectrum dynamic range transducer is one of the key. The characteristic of ultrasound is that the higher the transducer frequency is, the higher the acoustic image resolution is and the narrower the depth of the image is. Different generators are used for ultrasound endoscopy with different frequencies. But one can increase the development of a transducer that covers each frequency to solve this problem. Combining piezoelectric transducers can increase the frequency range because they are multiple vibrating columnar transducers. Moreover, different ultrasound images can be obtained for different purposes by changing the method of operation. The third, micromachined endoscopic technique, is used in many aspects of endoscopy from the diminishing of the CCD's volume to the magnifier's adjuster. The so-called micro-mechanical endoscopy technology is a millimeter-sized machine, and broadly speaking it means all the machinery made up of tiny parts. A 10M thick multi-functional integrated film including a heater, a tension sensor and a thermal sensor is attached to the probe surface so that the 1MM diameter controller can be bent by the temperature difference of the memory alloy. It can be used as a 1.5MM diameter catheter, it is easy to blind insertion of the pancreatic duct, when the tip of the pancreatic duct hit the wall, through the tension sensor to control the angle. Experiments show that remote control technology can use needle and suture lesions.

Fourth, the television endoscope, this endoscope can get a clear image of the distance to enhance the contour of the image, but also can effectively enhance the image detail in close-range magnification observation. IHB color enhancement and adaptive structure enhancement is one of the mainstream directions of television endoscope. The hemoglobin index color enhancement captures color-related changes in blood flow. The IHB color enhancement clearly depicts a slight red or color change that is easily neglected in routine endoscopy. For adaptive structure enhancement techniques, high frequency components can improve endoscopy diagnostic capabilities, but this component contains a significant amount of noise. When emphasizing detail images it is necessary to suppress this noise in order to get a better image.