The present invention involves a surgical device and method of use, particularly an assembly and method incorporating a peanut or barbell shaped expandable member along the distal region of an ablation device to facilitate ablation of a circumferential region of tissue engaged by the expandable member....http://www.google.es/patents/US20050171527?utm_source=gb-gplus-sharePatente US20050171527 - Circumferential ablation device assembly with an expandable member
Circumferential ablation device assembly with an expandable member
