An apparatus and procedures for percutaneous placement of surgical implants and instruments such as, for example, screws, rods, wires and plates into various body parts using image guided surgery. The invention includes an apparatus for use with a surgical navigation system, an attaching device rigidly...http://www.google.com.au/patents/USRE42194?utm_source=gb-gplus-sharePatent USRE42194 - Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
