The utility model relates to the technical field of
medical instruments, in particular to a centrum
trailing edge filing head and a bone file, the centrum
trailing edge filing head comprises a file head and a connecting rod, the file head comprises a
tool bit main body and filing teeth, and the filing teeth extend to one side face, facing the connecting rod, of the
tool bit main body along the top of the
tool bit main body. The side face, away from the connecting rod, of the tool bit body is a toothless smooth face. When the centrum
trailing edge file head is used, the file head penetrates through an
intervertebral foramen, the file teeth composed of the first arc-shaped teeth, the straight teeth and the second arc-shaped teeth can
grind the side wall of a spine,
grinding treatment positions are more, and the centrum trailing edge file head is flexible and convenient to use. The bone file comprises the
vertebral body trailing edge file head, the input shaft is driven by an external motor to rotate in one direction, the reciprocating conversion connecting rod is driven to rotate to drive the file
handle to swing in a reciprocating mode, then the file head swings in a reciprocating mode,
grinding of a position to be ground is achieved,
grinding efficiency is high through grinding in the reciprocating swinging mode, and the grinding efficiency is high. And the selection of grinding positions is more flexible.