Abstract: An interspinous device for impeding the movements of two successive vertebrae (8, 9) of the spinal column. In some embodiments, the device includes two pads (2a, 2b; 11a, 11b; 20a, 20b) whose internal faces (3a, 3b; 12a, 12b) are intended to be pressed against the lateral faces of the spinous processes (6, 7) of the vertebrae (8, 9), and ligaments (4, 5a, 5b, 5c, 5d; 17a, 17b, 18, 19; 23, 24) which connect the pads (2a, 2b; 11a, 11b; 20a, 20b) to each other and to the spinous processes (6, 7), so that, during flexion and extension movements of the spinal column with respect to its normal position, the pressures exerted against the lateral faces of the spinous processes (6, 7) by the pads (2a, 2b; 11a, 11b; 20a, 20b) increase as the spinal column moves away from the normal position. Method for making a pad designed for such a device.

Abstract: Interspinous device for impeding the movements of two successive vertebrae (8, 9) of the spinal column, characterized in that it comprises: two pads (2a, 2b; 11a, 11b; 20a, 20b) whose internal faces (3a, 3b; 12a, 12b) are intended to be pressed against the lateral faces of the spinous processes (6, 7) of the said vertebrae (8, 9), and ligaments (4, 5a, 5b, 5c, 5d; 17a, 17b, 18, 19; 23, 24) which connect the said pads (2a, 2b; 11a, 11b; 20a, 20b) to each other and to the said spinous processes (6, 7), so that, during flexion and extension movements of the spinal column with respect to its normal position, the pressures exerted against the lateral faces of the spinous processes (6, 7) by the said pads (2a, 2b; 11a, 11b; 20a, 20b) increase as the spinal column moves away from the said normal position. Method for making a pad designed for such a device.

Abstract: An intervertebral implant has two-plates intended to come into contact with a patient's vertebral end-plates. One of the plates has a cut-out delineating webs converging toward a zone where the plates are connected to one another.