Patent Application Titled "Systems And Methods For Monitoring Return Patch Impedances" Published Online (USPTO 20230190364).

The tissue therapy system of claim 1, wherein the first return patch electrode is a first return patch, and wherein the second return patch electrode is a second return patch. The method of claim 16, wherein driving currents comprises: driving a first current between the first return patch electrode and the second return patch electrode at a first frequency; driving a second current between the first return patch electrode and the at least one catheter electrode at a second frequency; and driving a third current between the second return patch electrode and the at least one catheter electrode at a third frequency, wherein the first, second, and third frequencies are different from each other. The tissue therapy system of claim 1, wherein to measure impedances, the impedance measuring circuit is configured to measure i) a first impedance between the first return patch electrode and the at least one catheter electrode and ii) a second impedance between the second return patch electrode and the at least one catheter electrode. [Extracted from the article]