随著科技的发展，医用内窥镜已广泛应用于医学领域，是人类窥视、体内器官的重要工具之一。
With the development of science and technology, medical endoscope has been widely used in the field of medicine.
200多年来，内窥镜的结构有了4次重大改进，从初的硬管(1806-1932)、半曲式内窥镜(1932-1957)、纤维内窥镜(1957以后)和现在的电子内窥镜(1983年以后)。图像质量也经历了一次质的飞跃。
Over the past 200 years, the structure of the endoscope has been improved four times, from the original hard tube (1806-1932) , the semi-curved endoscope (1932-1957) , the fiber endoscope (after 1957) and now the electronic endoscope (after 1983) . Image quality has also undergone a qualitative leap.
技术的发展改为灯泡做光源，而如今采用 LED照明，内镜也是彩色照片或彩色电视图像。它的影像不再是组织和器官的普通影像，而是像显微镜下观察到的显微图像，微小病变清楚可辨，其内窥镜设备维修影像质量已达到很高水平。
The technology evolved to use light bulbs as light sources, but today LED lighting is used, and the endoscope is also a color photograph or color television image. Its image is no longer a normal image of tissues and organs, but a microscopic image as observed under a microscope. The tiny lesions are clearly discernible.
医学内窥镜在临床上的应用日益普及，正朝着小型化、多功能、高成像方向发展。本文就医用内窥镜的分类、组成、结构、工作原理、临床应用及发展趋势作一介绍。
The application of medical endoscope in clinic is becoming more and more popular, and it is developing towards miniaturization, multi-function and high imaging. This article introduces the classification, composition, structure, working principle, clinical application and development trend of medical endoscope.
内窥镜设备维修是一种常用的医疗器械，它由可弯曲部分、光源和透镜组成。通过人体的天然孔道，或者通过外科小切口进入人体。用时将内窥镜导入检查器官，可直接窥视有关部位的变化。
Endoscope equipment maintenance is a kind of commonly used medical instrument, which consists of flexible parts, light source and Lens. Through the body’s natural channels or through small surgical incisions. When the endoscope is introduced into the organ, the changes of the relevant parts can be observed directly.
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