The present invention provides methods and devices for enhancing the delivery of treatment devices for treating the annulus of an intervertebral disc. The methods and devices may employ delivery support elements to delivery tools used to deliver expandable treatment devices to the intervertebral disc....http://www.google.co.uk/patents/US20070198021?utm_source=gb-gplus-sharePatent US20070198021 - Method and apparatus for enhanced delivery of treatment device to the intervertebral disc annulus