Inventors:
Fred T. Lee - Madison WI, US
Dieter Haemmerich - Madison WI, US
John G. Webster - Madison WI, US
Andrew S. Wright - Madison WI, US
Chris D. Johnson - Madison WI, US
David M. Mahvi - Middleton WI, US
Assignee:
Wisconsin Alumni Research Foundation - Madison WI
International Classification:
A61B 18/18
Abstract:
Efficient ablation with multiple electrodes is obtained by rapidly switching electric power to the electrodes. In this way, shielding effects caused by the field around each electrode which would otherwise create cool spots, are avoided. Complex inter-electrode current flows are also avoided.