Patent ID: 6799064
Filing Date: 2004-09-28
Classification: A61B

Abstract:
A catheter for sensing electrophysiological activity within a human heart comprisingan elongated catheter body having a distal end, first and second point electrodes, which are secured in a surface of the elongated catheter body, comprising a first bipolar pair of electrodes, and third and fourth point electrodes, which are secured in the surface of the catheter body, comprising a second bipolar pair of electrodes, wherein a line passing between the third and fourth point electrodes is within about 45 degrees of being perpendicular to a line passing through the first and second point electrodes and wherein each of the point electrodes is secured to a portion of the catheter body forming no more than about half of the circumference of the surface of the catheter body when viewed from the distal end of the catheter, such that all four electrodes can simultaneously be in contact with tissue of the human heart during a sensing procedure.