| 摘要 |
Surgical device for correcting deformation of the spinal column includes tubular elements for temporary attachment at pedicle screw heads connected by a curved implantable rod, and rods engaged through the elements to align them corresponding to the correction. Each tubular element has two independent portions coupled to outside of the heads; one end of each part having fittings coupling the portions together. The rods comprise an alignment rod and a handling rod, arranged in openings delimited by the portions to move parallel to an axis of the elements. The handling rod acting, as displaced, to simultaneously displace the curved rod, previously engaged into the openings, towards the heads. The handling rod being removed and then coupled to the outside of the elements arranged in alignment to remove the alignment rod and engage, inside each element, a member actuating a nut for fastening the curved rod in each head. |
| 主权项 |
1. A surgical device for correcting a deformation of the spinal column comprising tubular elements capable of being temporarily attached at a level of pedicle screw heads arranged to be connected by a curved implantable rod, rods intended to be engaged through the different tubular elements to align the elements corresponding to correction of said spine, by translation, tilting, and rotation of vertebrae, wherein each tubular element is formed of two independent portions, to be coupled to an outside of the pedicle screw heads, one of the ends of each part having fittings for coupling said portions together and with respect to a corresponding pedicle screw head, the rods, one of which forms an alignment rod while the other forms a handling rod, being arranged in openings delimited by the two portions of the tubular element with the ability to move parallel to an axis of the tubular elements, the handling rod being capable of acting, as it displaces, on means for simultaneously displacing the curved rod, previously engaged into openings, towards the pedicle screw heads, said handling rod being intended to be removed and then coupled to the outside of the tubular elements arranged in alignment to enable to remove the alignment rod and to engage, inside of each tubular element, a member for actuating a nut for fastening the curved rod in each of the pedicle screw heads. |
