结肠镜检查是诊断和治疗结肠疾病的重要手段。过去我们在操作中以双人检查为主,患者痛苦较大,甚至对该项检查产生恐惧心理,影响了结肠疾病患者的及时诊治。80年代中期国外尤其是北美和日本开始普遍使用单人法操作结肠镜,认为其相对双人检查法来说是一种快速、低痛、安全的方法 Colonoscopy is an important tool in the diagnosis and treatment of colon diseases. In the past we double-checked in the operation-based, patients with greater pain, and even the fear of the inspection, affecting timely diagnosis and treatment of colon disease patients. In the mid-1980s, foreign countries, especially North America and Japan, started to use the single-person method to manipulate colonoscopy. They considered it a fast, low-pain and safe method compared with double-check methods