A hemostat-type device for ablative treatment of tissue, particularly for treatment of atrial fibrillation, is constructed with features that provide easy and effective treatment. A swiveling head assembly can allow the jaws to be adjusted in pitch and roll. Malleable jaws can permit curved lesion shapes....http://www.google.de/patents/US7083620?utm_source=gb-gplus-sharePatent US7083620 - Electrosurgical hemostat