An integrated catheter shaft with a guidewire and a radio frequency wire is used in a catheter to deliver radio frequency energy to a treatment site. The small entry wound and the long integrated catheter shaft allows a user to thread the shaft along a tortuous route along a spinal canal to reach a treatment...http://www.google.es/patents/US8103356?utm_source=gb-gplus-sharePatente US8103356 - High frequency epidural neuromodulation catheter without needle for effectuating RF treatment
High frequency epidural neuromodulation catheter without needle for ...