A cardiac pacemaker synchronizes electrical stimulus signals with respiratory cycles using a neuronal oscillator.
Implantable thermal electric cooling elements modify cardiac tissue conduction properties to terminate ventricular fibrillation.
A pacemaker switches between synchronous and asynchronous ventricular pacing modes to promote natural atrioventricular conduction.
Segmented high-rate sampling extracts pacing parameters to remove interference without attenuating ECG amplitude or broadening signal width.
An intermediate tap manages inductance to protect communication circuitry from high voltage damage while reducing device complexity.
Separate timers for heart rate zones capture AV conduction characteristics accurately while reducing repetitive sampling time.
Left atrial pacing lowers left atrial pressure by delivering early electrical pulses, resolving intra-atrial dyssynchrony in diastolic heart failure.
Correlating signals across multiple electrode combinations localizes lead failures to prevent inappropriate pacing pulses.
A multi-phase cardiac stimulus generator applies anodal and cathodal waveforms to modulate heart rhythm.
An analysis module processes oscillating electrical signals from an inertial energy harvester to derive physiological parameters.
An implantable pacemaker increases pacing pulse energy when heart rate exceeds a threshold to ensure reliable rhythm management without ICD communication.