Rectum distraction device

A rectum distraction device is divided into an upper clamp body and a lower clamp body. The upper clamp body and the lower clamp body are the same in shape and each comprise a deep section, a broken line section and a handheld section. The deep section main body is a semi-cylinder and is marked with scales; the front end of the deep section is a quarter ball; broken lines of the broken line sections are outward; the tail end of the handheld section extends inwards to form an arc strip, saw-tooth-shaped fine teeth are uniformly distributed on the arc strip, and a circular ring is outwards arranged on the arc strip; a hinge hole is formed in the joint of the handheld section and the broken line section; the fine threads of the upper and lower forceps bodies can be meshed with each other; and the hinge holes of the upper and lower clamp bodies are overlapped, and the pin shaft penetrates through the hinge holes. When the handheld section is loosened, the deep sections of the upper and lower forceps bodies abut a