Systems for bone and spinal stabilization, fixation and repair include intramedullar nails, intervertebral cages and prostheses, remotely activatable prostheses, tissue extraction devices, and electrocautery probes. The intramedullar nails, intervertebral cages and prostheses, are designed for expansion...http://www.google.es/patents/US6127597?utm_source=gb-gplus-sharePatente US6127597 - Systems for percutaneous bone and spinal stabilization, fixation and repair
Systems for percutaneous bone and spinal stabilization, fixation and repair