What are the application scopes of handheld video endoscope? It can be divided into rigid tube endoscope, fiber endoscope and electronic endoscope. The outer mirror body of the hard tube endoscope is usually made of metal, and the optical system is composed of lenses and prisms to realize image transmission, which can be directly observed through the eyepiece.

What are the main features of the handheld video endoscope?

The main features of the handheld video endoscope: very rich digital and analog interfaces; almost no dead space for screen viewing, no color distortion; photosensitive system, which can keep the screen brightness constant regardless of environmental changes and long-term use; up to 1073.7m colors, Through color correction, the display color is richer and more realistic; the high-transparency tempered glass in front of the screen keeps the original color unchanged, and the waterproof and dustproof design of the LCD panel is fully protected, which is convenient for surface cleaning and machine operation. Application: operating room, shadowless light camera system, endoscope, mobile teaching workbench, etc.

The endoscope enters the human body through the natural orifice of the human body or through a small incision made by surgery. An endoscope is a commonly used medical device. It consists of a bendable part, a light source and a set of lenses. When in use, the endoscope is introduced into the pre-examined organ, and changes in the relevant parts can be directly observed. The image quality of handheld video endoscope directly affects the use effect of endoscope, and also marks the development level of endoscope technology.

Endoscopic minimally invasive medical instruments are mainly composed of endoscopes, minimally invasive surgical instruments and supporting equipment, of which endoscopes mainly include rigid tube endoscopes, fiber endoscopes and electronic endoscopes; minimally invasive surgical instruments can be divided into ENT minimally invasive surgical instruments, surgical minimally invasive surgical instruments and gynecological minimally invasive surgical instruments, etc.; supporting equipment mainly includes cameras, monitors, cold light sources, etc.

Endoscope is a convenient, direct and effective medical device for medical staff to observe the internal lesions of the human body. It is widely used in otolaryngology, abdominal surgery, urology, anorectal surgery, orthopedic surgery, thoracic cardiovascular surgery, neurosurgery, gynecology In other fields, handheld video endoscope can be mainly divided into rigid tube endoscope, fiber endoscope and electronic endoscope according to its imaging structure and characteristics.

It can also be connected to a miniature image sensor (CCD) camera through an optical interface, and the image can be transmitted to the handheld video endoscope screen for observation and diagnosis; unlike the rigid endoscope that uses optical lenses to transmit images, the fiber endoscope mainly uses glass The fiber beam is used as a light-guiding and image-transmitting element, and the lens is flexible and flexible; unlike the optical interface in the hard tube endoscope, which is connected to the CCD, the electronic endoscope replaces the end of the inner lens by placing the CCD on the top of the endoscope, and uses a cable Instead of the glass fiber to transmit the image, the optical signal is directly converted into an electrical signal, and then the image is displayed on the monitor screen through video processing.

At present, there are differences in the practical application of rigid endoscopes, fiber endoscopes and electronic endoscopes. The development history of rigid endoscopes is relatively long, the product technology and medical practice are relatively mature, and the imaging is clear. With a surgical operation channel, minimally invasive surgical instruments can be directly used for surgical treatment through the channel, which simplifies the surgical process and reduces the pain of patients. Features: The handheld video endoscope product basically covers all departments and is one of the minimally invasive diagnosis and treatment products mainly used by medical institutions; the major feature of the fiber endoscope is that the front end of the lens can be manipulated to change the direction, which reduces the inspection blind spot, but the texture is soft, It is not easy to fix, and is more suitable for observation and diagnosis through the natural orifice of the human body, but it is not suitable for high temperature and high pressure disinfection; electronic endoscopes place the CCD at the end of the lens, the pixels are increased, and the resolution is better than that of fiber endoscopes. The time is short, the types are relatively small, and it is not suitable for high temperature and high pressure disinfection.

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