Thoraco-lumbar pedicle screw Type Ⅱ

polyaxialmonoaxialtitanium

Bone cement screws are a special type of screws used in orthopedic surgeries, mainly to enhance the internal fixation stability for patients with osteoporosis. The design and application of bone cement screws are as follows: The design of bone cement screws is unique, mainly including an internally hollow U-shaped nail seat and a hollow screw body. The lower part of the U-shaped nail seat is equipped with a cylindrical mounting hole, and a clamping sleeve is arranged inside the nail seat and above the cylindrical mounting hole. The outer wall of the clamping sleeve cooperates with the inner wall of the U-shaped nail seat to form a spherical mounting hole. The screw body includes a spherical mounting section and a threaded section integrally formed with the spherical mounting section. The threaded section extends out of the U-shaped nail seat, and the spherical mounting section mates with the spherical mounting hole, allowing the inner wall of the U-shaped nail seat to rotate omnidirectionally with the screw body.