Abstract: The present invention concerns an implant for an osteosynthesis device in particular of the backbone and the specific tool for setting this implant, enabling a secure fixing and a simple and easy setting. The implant comprises a bone anchoring device (1) topped with a fixing head (3) consisting of two side branches (5) forming an open U and designed to receive a linking rod to be locked by clamping, by means of a threaded nut (6) to be screwed on matching threaded parts produced on the partially cylindrical outer walls (5a) of the fixing head (3) side branches, and comprises, in the nut (6) diametral zone, a plate mounted in free rotation. The implant, in combination with the corresponding tool, enables the setting with blind indexing of the plate between the U-shaped branches (5) of said head (3), before and during the clamping of the nut, which is performed with the same tool (10).

Abstract: A spinal implant device arranged to clamp at least one vertebra includes a link rod, a hook defining a central bore and secured to a fixing head, a counterhook, an elongate member, a position control device and an interconnection arrangement between the counterhook and the hook. The fixing head has a pair of upwardly extending members forming a channel configured to accommodate the link rod. A nut engages the fixing head to exert a downward force onto the link rod. The elongate member attaches at one end to the counterhook and slidably engages the central bore of the hook such that the hook and the counterhook cooperate to define a clamp. The position control device cooperates with the hook and the elongate member to selectively maintain the hook in a position relative to the counterhook.

Abstract: An intervertebral link device including at least one damper element constituted by a cage and a pin designed to be connected to bone anchor elements. The pin being engaged in a housing of the cage and being fitted with two elastically deformable members operating in opposition to an applied traction force or compression force. The damper element includes a pin that is mounted inside the cage by a joint allowing multidirectional relative pivoting between the pin and the cage, at least about the axes contained in a plane perpendicular to the pin and angular abutment between the cage and the pin enabling the multidirectional relative pivoting to be limited in amplitude to a determined value of about 4°.

Abstract: A system for intersomatic fusion and setting of vertebrae. The system includes at least one open internal cage arranged for receiving spongy bone or bone substitute and is designed to be interposed between two vertebrae during diskectomy. The cage (1) includes on its anterior face (5) an external element forming a plate (12) extending in a plane substantially perpendicular to the insertion plane of the cage (1), and has at each of its ends an anchor device (13,14) adapted for anchoring to at least two adjacent vertebrae to be secured to each other by the cage (1). The system can be separated into two parts, the cage and the plate.