With the development of modern science and technology, endoscopes have undergone thorough reforms and used optical fibers. In 1963, Japan began to produce fiberscopes. In 1964, a biopsy device for fiberscopes was successfully developed. This biopsy instrument for biopsy can have appropriate pathological materials and is less dangerous. In 1965, fiber colonoscopy was made to expand the scope of examination for lower gastrointestinal diseases. In 1967, a magnifying fiberscope was studied to observe microscopic lesions. Fiber optic endoscopes can also be used for in vivo assays such as measuring body temperature, pressure, displacement, spectral absorption, and other data.
In 1973, laser technology was applied to the treatment of endoscopes, and gradually became one of the means of endoscopic treatment of gastrointestinal bleeding. In 1981, endoscopic ultrasound technology was successfully developed. This new development combining advanced ultrasound technology with endoscope greatly increased the accuracy of diagnosis of lesions.
In 1987, Phillipe Mouret first started a TV endoscopic surgery.
Modern endoscopy is gradually formed with the invention of fiberoptic endoscopes. In the 1960s, the "glass fiber" developed in the United States received wide attention in various fields. As early as the 1930s, there were optical fibers used for fiber-optic endoscopes to transmit light. However, due to the high loss rate of light during transmission, optical fibers that transmit optical signals have not progressed. The fiberoptic endoscope is a slender, flexible tube with a bundle of light-guiding fiberglass and a lens at each end. During the inspection, one end of the tube is inserted into the body to be inspected, and the inside of the organ can be seen from the other end. Endoscopes are usually accompanied by illumination sources, and some are equipped with instruments for surgical treatment, such as lasers. Optical fibers have been introduced into the optical transmission mechanism, and video lenses have become the first choice for image capture. The endoscope capable of taking photos at the same time is a "fiber endoscope" born in 1964. By the 1960s, endoscopes had image capture and measurement capabilities. Around 1975, the era of the stomach camera came to an end and was completely replaced by a "fiber endoscope". Zhang Zhenyuan, an expert in China's fiber optics, undertook the national key scientific and technological research project “Study on the series of fiber-optic image beam and industrial endoscope large-scale production technology”. The technology has reached the domestic leading level and the world advanced level, and established the only domestic series capable of mass production. Beam and endoscope production base.
In 1983, a new type of charge coupled device (CCD) endoscope was first developed by Welch Allen Instruments of New York, USA. One end of the CCD endoscope inserted into the body is equipped with a small piece of silicon wafer integrated CCD "lens", which is actually a new type of photoelectric image sensor, which functions similarly to a television camera. It converts the image of the part to be inspected into a digitized electrical signal, which is transmitted through a metal wire and displayed by an "image monitor" like a television receiver. The application of this technology makes it possible to store, reproduce, consult and manage images.
In November 2002, the world's first "high-definition endoscope system" was born, and the concept of endoscopes changed dramatically. It condenses state-of-the-art imaging technology and provides image accuracy that makes it possible to diagnose extremely small lesions. The emergence of modern video endoscopes, electronic endoscopes, and ultrasound endoscopes has opened up a new era of modern medical endoscopes from the era of examination and diagnosis into the era of treatment and surgery.