Patent ID: 7935132

Claim:
Intervertebral linking device to connect at least two bones of the spine to one another, comprising: at least one fixed element which is to be secured to a vertebra of the spine or to a sacrum of the spine, at least one mobile linking element suitable for being displaced relative to the or each fixed element, at least one intermediate element permitting the articulation of each mobile linking element relative to the at least one fixed element at least at the time of assembly and implantation in the bone, wherein each intermediate element is received in an internal volume of a corresponding one of the at least one mobile linking element, or of a corresponding one of the at least one fixed element, the intermediate element being deformable to be placed into the internal volume by impaction, and wherein the at least one fixed element, or the at least one mobile linking element, is received at least partially in an internal volume of the intermediate element having a mutual position of use with three degrees of freedom in rotation at least at the times of assembly and implantation in the bone relative to the intermediate element while remaining linked in translation and a mutual position of introduction in which the corresponding one of the at least one fixed element, or the corresponding one of the at least one mobile element, has three degrees of freedom in rotation and in translation relative to the intermediate element at least at the times of assembly and implantation in the bone.