Patent ID: 11877783
Assignee: MEDTRONIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A system comprising:
an electrosurgical instrument including:
an elongated shaft having a distal section and a proximal section;
a handle positioned at the proximal section; and
an electrically conductive tip at the distal section;

a connector coupled to the electrosurgical instrument, the connector configured for connecting the electrosurgical instrument to one or more devices selected from the group consisting of a radio frequency generator, a programmer/analyzer, and a pacer;
a radio frequency circuit coupled to the connector and the electrically conductive tip;
the radio frequency generator configured to provide radio frequency signals at a specific frequency that supplies ablative radio frequency energy to the electrically conductive tip; and
an electrogram filtering circuit coupled to the connector and the electrically conductive tip, the electrogram filtering circuit including:
a first active line including a first tuned resonant filter; and
a second return line including a second tuned resonant filter, wherein at least one of the first and the second tuned resonant filters is tuned and configured to reject signals at the specific frequency supplying ablative radio frequency energy provided by the radio frequency generator.