Abstract: The invention relates to a method for classifying atrial fibrillation by analysing ECG data (1) via a control system (2), wherein in a decomposition step the control system (2) decomposes the ECG data (1) by a frequency decomposition thereby generating frequency data (7), in particular a frequency spectrum, comprising a frequency dimension (f) and an amplitude dimension (a).

Abstract: The invention relates to a method for analyzing potential ablation therapies (1), in particular for patients (P) with atrial fibrillation, via a control system (2), wherein the method comprises an analysis step (3) in which the control system (2) applies a trained machine learning model (4) to input data (5) thereby generating output data (6), wherein the input data (5) comprise electrical biomarkers (7) derived from ECG data (8) from a patient (P) of at least one potential ablation therapy (1), the potential ablation therapy (1) including at least one potential ablation event (9) with a potential ablation location (10), wherein the output data (6) comprise a predicted change of the electrical biomarkers (7) after applying the potential ablation therapy (1) to the patient (P), wherein the predicted change is derived from the input data (5) via the trained machine learning model (4).

Abstract: System for filtering cardiac signals. The system includes: cardiac terminals (10a-d) adapted to collect cardiac electrophysiological potentials from a plurality of cardiac electrodes (1a-d) placed at respective cardiac locations in or on an individual (99) and a processor device (40) adapted to process one or more input signals, which are based on the collected electrophysiological potential(s). The processing includes running an adaptive filter algorithm on one or more signals based on the input signals. The adaptive filter algorithm is arranged to calculate estimated noise component(s) of the signals and arranged to subtract the estimated noise component(s) from the signals. In this way a cardiac signal is derived where the noise has been significantly reduced.

Abstract: A switchable filter device for use in a system for recording electro-physiological signals. The filter device includes a plurality of recording channels, the recording channels having an ablation recording channel. Each recording channel has a patient side terminal at a patient interface and a corresponding recording side terminal at a recording device interface. Each recording channel includes a first signal path with a first frequency dependent transmission characteristic having a first pass band, a second signal path with a second frequency dependent transmission characteristic different from the first frequency dependent transmission characteristic, the second frequency dependent transmission characteristic having a second pass band overlapping the first pass band, and switching devices operable to switch between the first signal path and the second signal path in response to a control signal indicative of a transient interference signal.

Abstract: A system for recording intracardiac signals and for providing stimulation pulses and/or ablation energy at intracardiac locations. The system includes intracardiac terminals adapted to collecting intracardiac electrophysiological potentials from respective intracardiac locations in an individual; an indifferent terminal adapted to collecting indifferent electro-physiological potentials from the individual; a differential amplifier stage adapted to receiving and amplifying the electrophysiological potentials collected from the intra-cardiac and indifferent terminals with respect to a signal reference to obtain respective intracardiac and indifferent signals; a processor device adapted to determining a common mode signal as an average of the intracardiac and indifferent signals and adapted to providing an output of intracardiac data based at least on the intracardiac signals, wherein the intracardiac signals are referenced with respect to the common mode signal.

Abstract: The present invention relates to a switchable filter device for use in a system for recording electro-physiological signals. The filter device comprises a plurality of recording channels, the recording channels comprising an ablation recording channel. Each recording channel has a patient side terminal at a patient interface and a corresponding recording side terminal at a recording device interface. Each recording channel comprises a first signal path with a first frequency dependent transmission characteristic having a first pass band, a second signal path with a second frequency dependent transmission characteristic different from the first frequency dependent transmission characteristic, the second frequency dependent transmission characteristic having a second pass band overlapping the first pass band, and switching devices operable to switch between the first signal path and the second signal path in response to a control signal indicative of a transient interference signal.

Abstract: System for filtering cardiac signals. The system includes: cardiac terminals (10a-d) adapted to collect cardiac electrophysiological potentials from a plurality of cardiac electrodes (1a-d) placed at respective cardiac locations in or on an individual (99) and a processor device (40) adapted to process one or more input signals, which are based on the collected electrophysiological potential(s). The processing includes running an adaptive filter algorithm on one or more signals based on the input signals. The adaptive filter algorithm is arranged to calculate estimated noise component(s) of the signals and arranged to subtract the estimated noise component(s) from the signals. In this way a cardiac signal is derived where the noise has been significantly reduced.

Abstract: A system for recording intracardiac signals and for providing stimulation pulses and/or ablation energy at intracardiac locations. The system includes intracardiac terminals adapted to collecting intracardiac electrophysiological potentials from respective intracardiac locations in an individual; an indifferent terminal adapted to collecting indifferent electro-physiological potentials from the individual; a differential amplifier stage adapted to receiving and amplifying the electrophysiological potentials collected from the intra-cardiac and indifferent terminals with respect to a signal reference to obtain respective intracardiac and indifferent signals; a processor device adapted to determining a common mode signal as an average of the intracardiac and indifferent signals and adapted to providing an output of intracardiac data based at least on the intracardiac signals, wherein the intracardiac signals are referenced with respect to the common mode signal.