IMMOBILIZER OF THE VERTEBRAL COLUMN.

摘要

THE VERTEBRAL COLUMN FIXER PRESENTS A SCREW AND ANCHORAGE (11) SCREWABLE IN A VERTEBRAL BONE, WHOSE HEAD (13) IS PROVIDED WITH AN OBLIQUE SEAT SURFACE (14). AGAINST THE SEAT SURFACE (14) A PRESSURE DEVICE (20) IS FITTED AND FIXED TO THE ANCHORING SCREW (11) WITH AN EXTENSION SCREW (16). THE PRESSURE DEVICE (20) JOINS A LENGTH (21) THAT JOINS TWO ANCHOR SCREWS SET TO DIFFERENT VERTEBRAL BONES. THE PRESSURE DEVICE (20) IS CONFIGURED IN THE FORM OF A CLAMP. IT HAS TWO DIFFERENT ARMS ONE OF ANOTHER AND UNITED BY A FLEXIBLE ARCIFORM SEGMENT, THAT CAN BE TIGHTENED ELASTICALLY THROUGH THE EXTENSION SCREW (16). THERE ARE AVOID HOLGURES AND IMPREVED ROTATIONS OF THE LARGUERO