Disclosed are surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine for subsequent treatment procedures. The treatment site may be an inter-vertebral motion segments in the lumbar and sacral regions of the spine. The tool set may comprise introducer...http://www.google.de/patents/US20080065094?utm_source=gb-gplus-sharePatent US20080065094 - SPINAL FUSION KIT FOR GUIDING INSTRUMENTATION THROUGH SOFT TISSUE TO A POINT ON THE SPINE
