1. From material learning, endoscope can be divided into two types: hard tube and hose type, also known as hard endoscope and soft endoscopy.
rigid
Rigid endoscope includes three parts: transmission, lighting, and pores. The portion part is divided into object mirrors, relay systems, and eyepiece composition of conductive images. The lighting part uses the cold light source to use light to guide fiber into the domestic method. The function of the pores is to send gas, water delivery, and live inspection pliers.
Soft
Use fibrous beams to transmit and light or guide or use CCD to transmit images to a soft endoscope. Because it has good softness and convenient operating properties. The characteristics of soft endoscopes are: easy to enter and can reach places where hard mirrors cannot reach. Add the head bending mechanism to eliminate blind spots. Can be sampled and ** through biopsy holes. Soft endoscopy can be divided into fiber endoscopy and electronic endoscopy.
The type of Handheld Video Endoscope Manufacturers is divided into: optical mirrors, fiber mirrors, and electronic mirrors.
The optical mirror is a complete transmission of the internal objects through the light, and it has no distortion to the eyes of the detector, so the imaging is very true, and it is also high in these mirrors.
optical fiber
The principle of optical fiber mirrors is similar to that of optical mirrors. In order to enter a small hole, we choose the fiber mirror. The clarity of the fiber mirror depends on the number of fiber beams.
Fiber endoscopy: apex, bending part, insertion department, operating department, lighting hose, lighting connection part, eyepiece apex into a rigid segment, with direct vision (front -aversion), side vision, strabismus, squinting Mode. Gastroscopy has a direct vision, and the duodenic esophageal mirrors adopt side vision. The apex is: objective mirror pores (guide beams), light holes (lighting beams), gas pores (nozzles), biopsy holes. The bending part uses four steel wire traction methods. There are four steel wires connected to the control department on the head. Twist the upper, lower left and right hand wheels of the control department, which can pull the wire in different directions to swing the curved head in the corresponding direction. There are light guide bundles, guides, various pipelines, and traction devices, bending tubes, and bending rubber in the curved part.
(Handheld Video Endoscope Manufacturers) The hose department includes the bending part and insertion, also known as the snake tube. Including light guide bundles, guides, water gas pipes, biopsy pipelines (also attracting pipes), traction steel wires, outsourcing stainless steel band hose and metal mesh pipes,*outer layers are smooth plastic pipes. The fiber bundle of the conductive image constitutes the core part of the fiber endoscopy. It consists of tens of thousands of extremely fine glass fibers. According to the principle of optical full reflection, all glass fibers must be covered with a lower layer of refractive liability film to use it with a lower refractive index, so Ensure that the light of all core fibers can be reflected. The transmission of single -rooted fiber can only produce one light spots. To see the image, you must put a large number of fiber integrated beams. To pass the image to the other end to the same image, you must make each fiber in its it The positions arranged at both ends are the same, and they are called guidance beams. A guide image is broken, and the imaging is one more black spot. The light guide bundle does not require the same position, and the brightness of the disconnection of many roots is significantly weakened.
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