内镜是一种深入人体腔内进行直视观察、诊治的精密医用光学仪器 ,品种繁多 ,性能不同。内镜在临床越来越广泛应用 ,以及内镜下治疗、手术的开展 ,为确保病人的安全 ,使用者必须熟悉其基本构造及各部件的性能 ,正确地维护、精心地保养 ,防止故障发生 ,延长仪器使用寿命。现根据 Endoscopy is a kind of precision medical optical instrument that penetrates into the human cavity for direct observation, diagnosis and treatment. It has a wide variety of different performances. Endoscopy is more and more widely used in clinical practice, as well as endoscopic treatment and surgery. To ensure the safety of patients, users must be familiar with the basic structure and performance of various components, and properly maintain and carefully maintain and prevent failures. , extend the life of the instrument. According to