Bone fixing element and stabilising device comprising one such bone fixing element

摘要

The device comprises a first element with a threaded shaft (1, 2, 3) and a first semispherical head segment (4) accommodated inside a second head segment (10) and held in place by an elastic element (20). The second head segment (10) is inserted into a spherical space underneath a pressure element (50) inside a cylindrical case (40). The unit is secured to a transversal rod (100) with a first wider screw (60) with an outer and an inner thread and a smaller screw (70) inserted into the threaded bore at the wider screw (60).