Patent ID: 7740629

Claim:
An ablation catheter which includes: an elongate carrier including a tubular member; a first loop arranged at, or adjacent, a distal end of the carrier; at least one sensing electrode carried on the first loop for sensing irregular electrical activity in a patient's body; at least one further loop arranged proximally relative to the first loop on the carrier in a fixed orientation relative to the first loop; and at least one ablating electrode carried on the at least one further loop for ablating a site of the patient's body where irregular electrical activity occurs, the tubular member of the elongate carrier being folded back on itself to form a distal hairpin and a pair of limbs extending from the hairpin, the limbs having a pair of proximal ends, the loops being carried on the limbs and a size of the loops being adjustable independently of one another by appropriate manipulation of the proximal end of at least one of the limbs.