Locking screw of minimally invasive lumbosacral vertebrae locking axial fusion internal fixation system
An axial fusion and fixation system technology, applied in the field of medical devices, can solve the problems of long operation time, poor rotational stability, increased trauma, etc., and achieve the effects of improving anti-rotation stability, reasonable design and simple structure
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[0026] Such as figure 1 As shown, a locking screw of a minimally invasive lumbosacral vertebral axial fusion internal fixation system with locks includes an axial fixing screw and a one-way locking screw 2 connected to each other, and several through holes 13 are arranged on the axial fixing screw, and the through holes 13 is provided with an internal thread; one end of the one-way locking screw 2 is movably connected in the through hole 13 .
[0027] The axial fixing screw includes a screw front part 11 and a screw rear part 12, and a through hole 13 is respectively arranged on the screw front part 11 and the screw rear part 12.
[0028] The other end of the one-way locking screw 2 is provided with a hexagonal end 21 .
[0029] Such as figure 2 As shown, the diameter of the screw front part 11 is smaller than the screw rear part diameter 12, and the screw front part 11 and the screw rear part 12 are respectively provided with threads.
[0030] Such as Figure 4 As shown,...
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