随着内镜检查的广泛应用和内镜治疗的不断开展 ,内镜附件的种类越来越多 ,已由原来的几种增加到上百种 ,有些附件如活检钳、注射针等在内镜检查治疗中需突破人体粘膜屏障而造成损伤 ,这些都是造成医源性感染的危险因素 ,尤其是 HBV、HCV、HIV、TB、沙门氏菌及 Hp的交叉感染已引 With the extensive application of endoscopy and the continuous development of endoscopic treatment, more and more types of endoscopic attachments have been added from the original ones to over one hundred. Some attachments such as biopsy forceps and injection needles are under endoscopy Check the treatment needs to break through the human mucosal barrier and cause injury, these are the risk factors for iatrogenic infection, especially cross-infection of HBV, HCV, HIV, TB, Salmonella and Hp