Filter circuit for electrophysiology system

1. An ablation generator comprising:

a circuit for generating an RF ablation signal having a frequency appropriate for performing an ablation procedure on tissue of a patient;

an input port for receiving a monitoring signal respective of the tissue of the patient;

an output port for providing the monitoring signal to another device; and

a filtering circuit disposed between the input port and the output port;

wherein said filtering circuit is configured to present a high impedance at a frequency at or near which a mapping and navigation system associated with the ablation generator transmits a signal;

wherein said filtering circuit comprises two channels, each channel comprising a first and a second filter portion, each comprising a respective plurality of LC traps, each LC trap comprising an inductor in parallel with a capacitor, the LC traps being placed in series; and

wherein a first plurality of the LC traps in said first filter portion are tuned to a first same peak frequency between six kilohertz and eight kilohertz, and a second plurality of said LC traps of the first filter portion are tuned to a second same peak frequency between six kilohertz and about seven kilohertz.

2. The ablation generator of claim 1 , wherein said input port comprises respective channels for a plurality of electrodes on a medical device.

3. The ablation generator of claim 1 , wherein the plurality of LC traps of the second filter portion are tuned to or near a harmonic of said frequency of said RF ablation signal.