Acetabulum reaming guider

The acetabulum chambering guider comprises a positioning nail guider (5) and a chambering guider (6), the device is characterized in that the positioning nail guider is composed of a first cylinder (7), a first bottom plate (8) and a plurality of positioning rods (9), the positioning rods are fixed to the first cylinder, the front end of the first cylinder is used for stretching into the acetabulum (2) of a patient, the front ends of the positioning rods are used for being clamped to the outer side of the acetabulum edge (3), positioning holes (10) are evenly formed in the first bottom plate, and positioning nails (16) are inserted into the positioning holes; the reaming guider is composed of a second cylinder (11) and a second bottom plate (12). According to the acetabulum chambering guider, the positioning nail is used for guiding the chambering guider, the chambering reamer is guided by the chambering guider, accurate chambering of the acetabulum of a patient is facilitated, and the problem that the precis