Endoscope

The utility model discloses an endoscope which comprises a head end portion, a bending portion, an insertion portion, an operation portion, a connecting portion and a replaceable portion. According to the utility model, the main contribution to the prior art is that the operation channels are turned from the inside of the endoscope body to the outside of the endoscope body, each operation channel is designed to be in a replaceable form which can be conveniently and quickly replaced as required after being used, and the operation channels are directly connected with the channel inlet of the operation part or a device; therefore, the problem of cross infection caused by incomplete disinfection of the operation channel can be thoroughly solved, the problems of damage to the endoscope, delay of diagnosis and treatment of a patient and the like caused by long-time disinfection are further avoided, and the working efficiency of doctors is improved. 本实用新型公开了一种内窥镜，包括：头端部、弯曲部、插入部、操作部、连接部及可置换部。本实用新型对现有技术的贡献主要是把所述的操作通道由