Three-dimensional percutaneous micro-channel lower cervical vertebrae pedicle screw guiding and positioning device based on CT (Computed Tomography) data

The invention relates to a three-dimensional percutaneous micro-channel lower cervical vertebrae pedicle screw guiding and positioning device based on CT (Computed Tomography) data. The three-dimensional percutaneous micro-channel lower cervical vertebrae pedicle screw guiding and positioning device comprises a guiding pipe, a fixed ring which sleeves the lower end of the guiding pipe, and a snake-shaped arm connected with the upper end of the guiding pipe, wherein the other end of the snake-shaped arm is fixed on a surgical bed; the guiding pipe movably sleeves a second inner pipe; the second inner pipe movably sleeves a first inner pipe; a puncture awl movably penetrates into the first inner pipe; the guiding and positioning device further comprises an opening awl which is adaptive to the inner diameter of the first inner pipe and can movably penetrate into the first inner pipe, and a screw tap which is adaptive to the inner diameter of the second inner pipe and can movably penetrate into the second inner p