Anti-rotation orthopedic internal fixator

The invention discloses an anti-rotation orthopedic internal fixator which comprises an outer sleeve, positioning components, an operation component and a reset spring. The operation component controls the positioning components to move and comprises a near-end push rod and a far-end sliding rod, the near-end push rod is arranged inside the outer sleeve and slidably connected with the outer sleeve, the far-end sliding rod is arranged inside the outer sleeve and positioned on the inner side of the near-end push rod, the far-end sliding rod is slidably connected with the outer sleeve, the positioning components are arranged at two ends of the far-end sliding rod and detachably connected with the far-end sliding rod, one end of the reset spring is integrally connected with a pipe orifice end, far away from a threaded pipe, of the far-end sliding rod, and the other end of the reset spring is integrally connected with the bottom of the inner side of the threaded pipe. According to the design scheme, the anti-rotat