Patent ID: 7347857
Filing Date: 2008-03-25
Classification: A61B

Abstract:
1. An ablation catheter which includes: an elongate carrier which is folded back on itself to form a distal hairpin and a pair of limbs extending from the hairpin; 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 of 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; and an electrically isolating discontinuity arranged on a first limb of the pair of limbs of the carrier and between the loops to isolate electrical conductors associated with the first loop from electrical conductors associated with the at least one further loop, the at least one further loop being arranged on the first limb but between the discontinuity and the hairpin, the electrical conductors for the at least one ablating electrode of the at least one further loop extending along the first limb and the electrical conductors for the at least one sensing electrode of the first loop extending along a second limb of the pair of limbs and through the hairpin into the first limb.