Abstract: In one embodiment, the present invention includes a spinal osteosynthesis system comprising a connector, a connector member, a ring, and a bone anchor. The connector has an upper part disposed opposite of a lower part along a central axis. The upper part has a locking element and the lower part has a curved interior surface. The connector member can extend through the upper part along an opening axis transverse to the central axis. The ring may define a solid of revolution about the central axis. At least a portion of the ring may be receivable in the lower part of the connector. The bone anchor may have a head curved for polyaxial orientation with respect to the central axis. The locking element may be advanced towards the lower part to place the head of the bone anchor in contact with the connecting member, the ring, and the connector.

Abstract: In one embodiment, the present invention includes a spinal osteosynthesis system comprising a connector, a connector member, a ring, and a bone anchor. The connector has an upper part disposed opposite of a lower part along a central axis. The upper part has a locking element and the lower part has a curved interior surface. The connector member can extend through the upper part along an opening axis transverse to the central axis. The ring may define a solid of revolution about the central axis. At least a portion of the ring may be receivable in the lower part of the connector. The bone anchor may have a head curved for polyaxial orientation with respect to the central axis. The locking element may be advanced towards the lower part to place the head of the bone anchor in contact with the connecting member, the ring, and the connector.

Abstract: A method for osteosynthesis of a spinal column using an assembly including a bone anchor, a connector and a ring, the method comprising: inserting an anchoring part of the bone anchor into bone, the bone anchor including the anchoring part and a head, the head positioned to be in contact with the connector and ring; inserting a connecting member into the connector; and applying a force to the connecting member such that the connecting member applies the force against the ring and the bone anchor, wherein the head of the bone anchor contacts the connector, ring and connecting member during the application of the force.

Abstract: A method for osteosynthesis of a spinal column using an assembly including a bone anchor, a connector and a ring, the method comprising: inserting an anchoring part of the bone anchor into bone, the bone anchor including the anchoring part and a head, the head positioned to be in contact with the connector and ring; inserting a connecting member into the connector; and applying a force to the connecting member such that the connecting member applies the force against the ring and the bone anchor, wherein the head of the bone anchor contacts the connector, ring and connecting member during the application of the force.

Abstract: A method for osteosynthesis of a spinal column using an assembly including at least a bone anchor, a ring, a connecting member, and a connector, the method including assembling the bone anchor and ring in the connector; positioning an anchoring part of the bone anchor in bone; assembling the connecting member in the connector such that the bone anchor, ring and connecting member are arranged to be tightened against each other in the connector; and tightening of the assembly by applying a force on the connecting member such that the connecting member contacts the ring and a head of the bone anchor.

Abstract: A method for osteosynthesis of a spinal column using an assembly including at least a bone anchor, a ring, a connecting member, and a connector, the method including assembling the bone anchor and ring in the connector; positioning an anchoring part of the bone anchor in bone; assembling the connecting member in the connector such that the bone anchor, ring and connecting member are arranged to be tightened against each other in the connector; and tightening of the assembly by applying a force on the connecting member such that the connecting member contacts the ring and a head of the bone anchor.

Abstract: A spinal osteosynthesis assembly comprises a connector, a bone anchor capable of being received in the connector, a connecting member capable of being received in the connector, and a ring capable of coming into contact with the bone anchor, the connecting member being able to come to bear against the ring and the bone anchor when the ring and the bone anchor are fitted in the connector.

Abstract: A multiaxial connection osteosynthesis system for the spine having a bone anchor, a connector and a connecting member. The bone anchor may be implanted into a vertebral body with a connector being attached to a head of the bone anchor. The connector includes a seat for receiving the connecting member. As the connecting member is locked into position it causes walls of the connector to inwardly deform and lock the head of the bone anchor relative to the connector.

Abstract: This invention relates to a spinal osteosynthesis assembly comprising the head of an anchoring member consisting of at least one arm and a tool for fixing said head to a spinal osteosynthesis system. The inventive assembly is characterized in that the tool can hold the head by creating at least one lateral support on at least one lateral edge of the arm and an additional support on the head in the opposite direction of the lateral support.

Abstract: The invention provides a system for osteosynthesis of the spine, the system comprising:

Abstract: An anchoring member and packer for use in spinal osteosynthesis systems. The anchoring member can accept a connecting element such as a spinal rod, and is adapted for insertion into bone. The packer provides stability to the anchoring member particularly when the anchoring member is not fully engaged to bone. The anchoring member has a head, anchoring means for engagement to bone, and retaining means for retaining the packer against the head. The packer has a through-orifice for receiving the anchoring member and complimentary retaining means for engagement to the head of the anchoring member.

Abstract: An intervertebral disk prosthesis comprising two plates and a cushion interposed between the plates is contemplated. The cushion includes a compressible body having two ends in contact with the plates. At least one of the plates comprises at least one stud for stressing the body along a direction not parallel to a main access of the prosthesis and mobile relative to the body. Thus the prosthesis imitates and approximates the mechanical properties of a healthy natural intervertebral disk.

Abstract: The spinal osteosynthesis assembly comprises:

Abstract: The spinal osteosynthesis assembly (1) comprises a connector (2), bone anchoring means (4) capable of being received in the connector, a connecting member (6) capable of being received in the connector, and a ring (8) capable of coming into contact with the anchoring means, the connecting member being able to come to bear simultaneously against the ring and the anchoring means when the ring and the anchoring means are fitted in the connector.