An RF treatment apparatus includes a catheter with a catheter lumen. A removable needle electrode is positioned in the catheter lumen in a fixed relationship to the catheter. The needle electrode includes a needle lumen and a needle electrode distal end. A removable introducer is slidably positioned...http://www.google.fr/patents/US5599345?utm_source=gb-gplus-shareBrevet US5599345 - RF treatment apparatus
