METHOD AND APPARATUS FOR CONTROL OF ABLATION ENERGY AND ELECTROGRAM ACQUISITION THROUGH MULTIPLE COMMON ELECTRODES IN AN ELECTROPHYSIOLOGY CATHETER

摘要

Method and apparatus for control of ablation energy and electrogram acquisition through multiple common electrodes in an electröphysiology catheter. A device that routes ablation energy to and that routes mapping signals received from an electrophysiology catheter having a plurality of conductive filaments including circuitry that provides, for each conductive filament when ablation energy is being delivered, an electrical signal path that has a low impedance for ablation energy and a high impedance for mapping signals. The device also includes circuitry that provides, for each conductive filament, when mapping signals are being received, an electrical signal path that has a high impedance for ablation energy and low impedance for mapping signals. At least one switch is provided that selectively groups electrodes into sectors for delivery of ablation energy.