纤维结肠镜（纤镜）自70年代初应用于临床以来，历经肠带诱导插镜法，但因痛苦大，很快被放弃。后发展到在X钱监测下的逆行插镜法，或人为的结圈进镜法，并结合手法、滑管防拌，其插镜达回盲部成功率从开始的33％到现在的95％。近年来又开展了无透视下的取直镜身过镜法，插镜达 Fiber colonoscopy (fiboscopy) since the early 70s used in clinical practice, after the gut induction lens method, but because of the pain, soon to be abandoned. After the development of the X money under the monitoring of retrograde mortise method, or artificial knot ring into the mirror method, combined with tactics, slide tube mixing, the insertion rate of the blind reached the blind success rate from the beginning of 33% to now 95 %. In recent years carried out under the perspective of non-through the lens to take the mirror method, insert mirror up