| abstract |
A catheter is provided. A catheter includes a shaft for insertion into an organ of a patient, an expandable distal end assembly, and one or more electrodes. An expandable distal end assembly is coupled to the shaft and the top of the catheter and includes a plurality of splines. In at least a given spline of the plurality of splines, at least 60 percent of the length of the given spline is uninsulated and is in contact with tissue of the organ to apply radio frequency (RF) pulses to the tissue. is configured to One or more electrodes are coupled to at least one of (i) one or more insulating portions of the spline and (ii) the apex, the one or more electrodes sensing electrical signals in tissue. is configured to [Selection drawing] Fig. 1 |