FIELD: medicine; traumatology; orthopedics.
SUBSTANCE: device provides ability of moving along several axes and fixing bone screws at stable position at angle to bone plate; additional mechanical elements are not required. Device for osteosynthesis has through opening made for placement of bushing for bone screw, which bushing can be adjusted along several axes. Device also has bushing made for introduction into through opening. The bushing has central channel made for placement of bone screw. Channel has longitudinal axis. Peripheral external side of bushing is made making contact with internal surface of through opening. Bushing is made for radial compression and radial expansion. Cross-lateral section, which passes in perpendicular to central axis, has non-circular shape. Cross-section of bushing, which passes in perpendicular to longitudinal axis, has shape to correspond in essence to shape of cross-section of through opening to protect bushing, being introduced into through opening, from turn relatively longitudinal axis and to keep ability of angular orientation adjustment relatively through opening.
EFFECT: improved efficiency of procedure.
33 cl, 8 dwg
