A device is described that may be positioned at a location in an intervertebral disc for diagnosis or treatment of the disc. Treatment may include, for example, applying energy or removing material, and may decrease intradiscal pressure. Radiofrequency energy may be applied. A percutaneous method of...http://www.google.es/patents/US6997941?utm_source=gb-gplus-sharePatente US6997941 - Method and apparatus for treating annular fissures in intervertebral discs
Method and apparatus for treating annular fissures in intervertebral discs
