Bone implant, in particular for vertebral arthrodesis, provided with locking means for anchoring screws

摘要

Bone implant (1) comprising a plate (2) with an orifice (4) extending along a directing axis (41) capable of receiving an anchoring screw (8) extending along a screw axis (84), where a first locking member (5) is disposed in a first peripheral housing formed in said orifice, and a second blocking member (6) is arranged in a second peripheral housing formed in said orifice and offset relative to the first housing according to l 'steering axis, and said orifice comprises a lower portion providing support with polyaxiality to said anchoring screw so that the screw axis can form with the directing axis a screw angle (α) of adjustable measurement, and the locking members are elastically deformable between an open configuration, in which they allow insertion of said anchor screw, and a closed configuration, in which they prevent an extraction of said anchor screw regardless of the extent of the screw angle. Figure 9