An RF ablation device has a delivery catheter with distal and proximal ends. A handle is attached to the proximal end of the delivery catheter. The delivery catheter has an electrode deployment means where said electrode deployment means includes a retractable tip section comprising a deployable...http://www.google.fr/patents/US5843020?utm_source=gb-gplus-shareBrevet US5843020 - Ablation device and methods
