A hook and rod apparatus for implantation and fixation to the centerline of the spine, wherein the rod provides for immobilization of the spine via its inherent rigidity. The hook elements are designed to be mounted at the arched portion of the lamina. In a first plow shaped variation, the blade ...http://www.google.es/patents/US5688274?utm_source=gb-gplus-sharePatente US5688274 - Spinal implant device having a single central rod and claw hooks
Spinal implant device having a single central rod and claw hooks