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自1957年 Hirschowitz 应用纤维内镜于临床以来,经过数十年的努力,内镜技术和功能不断完善。目前内镜不仅作为胃肠道疾病诊断的重要手段,而且已向治疗和科研方面扩展.近年来,内镜下治疗上消化出血的报道日趋增多,主要集中在以下领域.一、激光内镜止血目前能用光导纤维传输导入体腔的激光主要有氩激光和掺钕—钇铝石榴石(Nd—YAG)激光,以后者应用较广。激光对生物体的作用尚未完全阐明,一般认为激光对活组织的基本效应有:热效应;光压效应;光效应和电磁场效应。其治疗原理是根据激光对生物体的基本效应。使病灶局部组织气化、凝固和坏
Since 1957 Hirschowitz applied fiber endoscopy in clinical practice, after decades of efforts, endoscopic techniques and functions continue to improve. Endoscopy is not only an important method for the diagnosis of gastrointestinal diseases, but also has been extended to the treatment and research.In recent years, reports of endoscopic treatment of upper gastrointestinal bleeding are increasing, mainly in the following areas: First, laser endoscopic hemostasis At present, there are mainly argon laser and Nd-YAG laser which can be introduced into the body cavity by optical fiber transmission, and the latter is widely used. The role of laser on the organism has not been fully elucidated, the general view that the basic effects of laser on living tissue are: thermal effect; light pressure effect; light effect and electromagnetic field effect. The treatment principle is based on the basic effects of laser on the organism. Local tissue lesions gasification, solidification and bad