A catheter assembly for treatment of cardiac arrhythmia. The catheter assembly includes a catheter body and an ablative energy source. The catheter body includes a proximal portion, an intermediate portion, and a distal portion. The intermediate portion extends from the proximal portion and defines a...http://www.google.fr/patents/US7771421?utm_source=gb-gplus-shareBrevet US7771421 - Ablation catheter assembly with radially decreasing helix and method of use
Ablation catheter assembly with radially decreasing helix and method of use
