An instrument and method for exposing a selected area of the anterior lumbar region for a surgical procedure on the spine comprising making an incision on a human or animal body that exposes the anterior rectus sheath of the left rectus muscle, cutting the anterior rectus sheath to expose the body of...http://www.google.ca/patents/US6296609?utm_source=gb-gplus-sharePatent US6296609 - Surgical retractor and related surgical approach to access the anterior lumbar region
