Kardium is developing a groundbreaking medical device for the diagnosis and treatment of atrial fibrillation. The Globe mapping and ablation system is an investigational medical device, used in the diagnosis and treatment of Atrial Fibrillation. The Globe system uses well known technologies, like radio-frequency (RF) ablation, to treat atrial fibrillation, but in a new and innovative way. The Globe system provides mapping, stimulation and RF ablation of cardiac tissue to assist in the diagnosis and treatment of atrial fibrillation.