A bone fixing structure includes a plurality of bone screws, a plurality of screw nuts, a plurality of fixing bases, and one or a plurality of connecting rods. In particular, the fixing base has a taper hole, in which a concave spherical cover is arranged at a lower end of the taper hole and an upward convex spherical lip is arranged at an upper end of the taper hole. A screw head of the bone screw forms an upward convex spherical surface, and a stud and a second knob portion upward protrude from the spherical surface. A concave spherical surface is arranged at a bottom of the screw nut. The screw nuts, the fixing base, and the bone screws are combined by fitting the concave spherical surface to the convex spherical surface, so that the components can be assembled at various angles. By respectively screwing the plurality of bone screws on each vertebra, utilizing the screw nuts for pivotally connecting the bone screws at one end of the fixing base, and connecting the connecting rod at the other end of the fixing base, each bone screw and the connecting rod can be precisely arranged and steadily combined with each other, so as to ensure correct positioning of each vertebra and provide a proper supporting force.一種骨骼固定構造,其係由複數骨釘、螺固套帽與固定座以及一或複數連桿共同組成,特別是,在該固定座具有錐孔,在該錐孔下端設有內凹的球面罩簷,以及該錐孔上端設有向上突起的球面唇緣;於該骨釘的釘頭具有向上凸設的球面,且自該球面向上凸設一螺柱以及一第二旋鈕部;在該螺固套帽底面設有內凹的球面;該螺固套帽、該固定座與該骨釘之間係採用凹、凸球面的套接組合方式,因此各構件之間可作各種擺置角度的組合;而藉由將該等骨釘分別釘固在各別脊椎骨上,並使用該等螺固套帽將骨釘樞接於固定座的一端,以及將連桿串接於該固定座的另一端,使各骨釘與連桿之間準確設置且穩固地結合在一起,據此確保各別脊椎骨間的正確定位,並提供一適度的支撐力。1...骨釘12...外螺紋13...切口14...球面15...旋鈕部16...螺柱17...旋鈕部2...固定座21...水平向套孔22...迫緊螺絲23...錐孔24...球面罩簷26...球面唇緣3...螺固套帽32...貫穿螺孔33...球面4...連桿
