论文部分内容阅读
电子内窥镜在临床上的应用越来越普及,随着高新技术不断融入,诊断水平逐年提高,要求电子内窥镜能适应多样化、高精度化诊疗的需要。目前在一些发达国家中以电子内窥镜为主普遍采用了图像放大—分析—处理、图像文件管理和传送、超声诊断、微波—激光—高频治疗等高新技术与先进手段。展望电子内窥镜的发展,有以下几种趋势。1 CCD的超小型化初期的电子内窥镜,由于电荷耦合器(CCD)体积关系,因而插入部径粗,头端硬性部分过长,因此操作有些问题,经几次改进,操作性能有所改观,但对胃角部作观察时仍有不畅。其插入部粗细度的极限仅限制在消化道镜程度。要使头端硬性部缩短及插入部做成细径,还有待于CCD技术的更小型化。
The application of electronic endoscopes has become more and more popular in clinical practice. With the continuous integration of new and high technologies, the diagnostic level has been increasing year by year. Electronic endoscopes are required to meet the needs of diversified and highly precise medical treatment. At present, in some developed countries, the use of electronic endoscopes generally adopts high-tech and advanced methods such as image amplification-analysis-processing, image file management and transmission, ultrasonic diagnosis, and microwave-laser-high frequency therapy. Looking into the development of electronic endoscopes, there are the following trends. 1 In the initial stage of ultra-miniaturization of an CCD, an electronic endoscope had a large diameter in the insertion portion due to the volume relationship of the CCD, and the head portion was too long. Therefore, the operation was somewhat problematic. After several improvements, the operation performance was improved. Change, but there are still poor observations of the corners of the stomach. The limit of the thickness of the insertion portion is limited to the degree of gastrointestinal tractoscopy. To shorten the hard part of the head end and make the insertion part into a small diameter, it is still necessary to further miniaturize the CCD technology.