A lordotic guard and method for guiding a bone removal device to form an implantation space in the human spine and, if desired, for inserting a spinal implant into the implantation space....http://www.google.es/patents/US7909832?utm_source=gb-gplus-sharePatente US7909832 - Retractor for percutaneous surgery in a patient and method for use thereof
Retractor for percutaneous surgery in a patient and method for use thereof
