A pacing signal processing method, a system and an electrocardiogram (ECG) monitor, the method includes collecting at a high sampling rate the original ECG signal from a surface, obtaining the parameter and position information of a pacing signal according to the sampling points, and displaying the pacing signal morphology and/or parameter information of the pacing signal.

Medical device systems include processing circuitry configured to acquire sensed cardiac signals associated with cardiac activity of a heart of a patient, and to analyze the sensed cardiac signals to determine if a noise signal is present within the cardiac signals.

Methods and systems are provided for detecting arrhythmias in cardiac activity is provided. The method and systems are under control of one or more processors configured with specific executable instructions. The method and systems obtain a far field cardiac activity (CA) signal that includes a series of beats, the CA signal including paced events. The method and systems identify the paced events in the CA signals. The method and systems determine a score based on an amount of paced events and adjust at least one parameter of an atrial fibrillation (AF) detection process based on the score.

System and apparatus for pace detection and implementation thereof. A device for detecting pace pulse in the presence of ECG waveforms is disclosed. Specifically, the present disclosure relates to an elegant, novel circuit and method for presenting pace pulse data with or without ECG signals measuring for use in useful in a variety of medical applications. This allows for robust, portable, low-power, higher S/N devices which have historically required a much bigger footprint and complexity.

The invention relates to a device for detecting a signal from a human or animal organism which, during operation, carries out the following steps: detecting a signal from a human or animal organism in a time-dependent manner; subdividing a signal segment into first blocks; determining a total number of the first blocks; determining a measure for a signal swing in each of the first blocks; determining a number of first blocks in which the measure for the signal swing is less than a predeterminable first threshold value; calculating a first quotient from the number of first blocks in which the measure for the signal swing is less than the first threshold value and the total number of first blocks; comparing the first quotient with a second threshold value; classifying a state of the human or animal organism as physiological or as pathophysiological as a function of the previous comparison.

A medical device is configured to set a post-atrial time interval in response to an atrial event and generate an event time signal in response to a ventricular electrical signal crossing an R-wave sensing threshold during the post-atrial time interval. The device accumulates oversensing evidence in response to the event time signal and adjusts a ventricular sensing control parameter based on the accumulated oversensing evidence in some examples.

System for arrhythmia detection and confirmation includes implantable medical device (IMD) having a sensing circuit for sensing cardiac activity (CA) for one or more cardiac cycles and generating one or more CA signals. An implantable pressure sensor (IPS) includes IPS sensing circuit for sensing pressure during the one or more cardiac cycles and generating one or more pressure signals. IMD and IPS include communications circuits for communicating with each other and/or an external device. One or both of IMD or IPS includes memory for storing program instructions and processor(s) for analyzing one of the CA or pressure signals, for one or more cardiac cycles, to detect a candidate arrhythmia. In response to detecting candidate arrhythmia, the processor(s) obtain another one of CA or pressure signals for cardiac cycles corresponding to the one or more cardiac cycles, and confirm or deny candidate arrhythmia based on the other one of the signals.

An electrophysiology system including signal channels each of which processes an electrophysiological signal along a signal path extending from an input port that receives the analog electrophysiological signal, via an adjustable gain element that amplifies the electrophysiological signal, and via an ADC element that converts the analog signal into a corresponding digital signal, to an output port. The system further includes a monitoring element that generates a monitoring signal representative of a DC component of the electrophysiological signal and a gain control element that generates a control signal responsive to the monitoring signal. The control signal controls the gain setting of the gain element to cause a decrease in gain, if an increase in the magnitude of the DC component is determined; and/or an increase in gain, if a decrease in the magnitude of the DC component is determined.

A temporary cardiac pacemaker including an acquisition module for acquiring an intracavity electrocardiography signal; a pre-processing module, connected to the acquisition module, for pre-processing the intracavity electrocardiography signal; a storage module, connected to the pre-processing module, for storing the pre-processed intracavity electrocardiography signal in real time; and a display control module, connected to the storage module, for display control. The display control module includes a display and an instruction determination unit for detecting whether a pacing parameter adjustment instruction is triggered and to call and display the intracavity electrocardiography signal stored in real time on a pacing parameter adjustment interface, which displays the intracavity electrocardiography signal stored in real time and the pacing adjustment parameter on the display; and the displayed information includes intracavity electrocardiography and electrocardiography event markers. The pre-processing module includes an electrocardiography event marking unit for performing electrocardiography event marking on the pre-processed intracavity electrocardiography signal.

A leadless pacemaker includes at least one fixation element for fixing the leadless pacemaker to cardiac tissue, a communication unit electrically connected to the fixation element, so that the fixation element is configured to act as a communication antenna for transmitting signals generated by the communication unit to an external device and/or receiving signals from an external device, and a therapy unit for generating electrical signals to electrically stimulate cardiac tissue. The fixation element is configured to act as an electrode for electrically stimulating cardiac tissue and/or sensing electrical signals of the cardiac tissue. A method for electrically stimulating cardiac tissue, a method for sensing electrical signals of cardiac tissue by using the leadless pacemaker, and a method for communicating between a leadless pacemaker and an external device are also provided.