| 摘要 |
The present invention relates to an osseous anchorage implant comprising fixation means capable of receiving and fixing at least one bar, in particular of osteosynthesis, the implant (1) comprising on the one hand osseous anchoring means (10) and on the other hand a fixation head (11) bearing the fixation means, the fixation head being traversed by at least one channel (12) receiving the bar (2), and comprising clamping means (4) capable of clamping the bar against one inside wall, called support wall (32), the implant (1) being characterized in that the fixation means (4) and said support wall (32) enable obtaining, prior to blocking of the fixation, a determined clearance in rotation around at least one first axis (d3) not parallel to the longitudinal axis of the bar, in that the clamping means comprise a face at the contact of the bar, called the moving clamping surface (120), the moving clamping face (420) of the clamping means (4) being borne by a support head (42) articulated at the end of the clamping means (4) by a ball and socket connection, and in that the channel (12) has the form of an open channel having an aperture (120) opening onto one of the lateral faces of the fixation head (11), an edge (124) of said aperture bearing the clamping means (4), the aperture (120) of the channel and the position of the clamping means thus enabling the introduction (i) of the bar by the lateral route. |
