Water circulation negative pressure suction type inner chip removal drill bit special for anterior cruciate ligament reconstruction

The utility model discloses a water circulation negative pressure suction type inner chip removal drill bit special for anterior cruciate ligament reconstruction, belongs to the technical field of orthopedic sports medical surgical instruments, and aims to prevent crushed bone chips from entering articular cavities so as to reduce osteoarthritis after anterior cruciate ligament reconstruction. A plurality of blades are arranged on the surface of the drill bit body, a needle guide hole is formed in the center of the drill bit body, a water inlet cavity is formed in the drill bit body and extends in the length direction of the drill bit body, and a chip removal cavity is formed in the drill bit body and extends in the length direction of the drill bit body. A water inlet communicated with the water inlet cavity and a water outlet communicated with the chip removal cavity are formed in the outer wall of the drill bit body, the water outlet is communicated with a negative pressure suction mechanism, the water inl