Patent ID: 7520887
Filing Date: 2009-04-21
Classification: A61B,Y10S

Abstract:
1. An interspinous device for impeding the movements of two successive vertebrae of the spinal column, comprising: a first and second pad, each pad having external and internal faces, said internal faces configured to be pressed against the lateral faces of the spinous processes of the vertebrae, a first, second, third, and fourth ligament which together connect the first and second pads to each other and are configured to attach the first and second pads to the spinous processes so that, during flexion and extension movements of the spinal column from its normal position, the pressures exerted against the lateral faces of the spinous processes by the first and second pads increase as the spinal column moves away from the normal position, wherein the first and second pads each further comprise: wherein said first ligament is inserted in said longitudinal perforation of said first pad; wherein said third ligament is inserted in the upper transverse perforation of said first and second pads; wherein said third ligament is inserted in the upper transverse perforation of said first and second; wherein said fourth ligament is inserted in the lower transverse perforation of said first and second pads; wherein, in each pad, the upper and lower transverse perforations intersect the longitudinal perforation; and the third and fourth ligaments pass through the first and second ligaments.