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US 7,742,814 B2Granted
Cardiac pacing system for prevention of ventricular fibrillation and ventricular tachycardia episode
AssigneeCardiac Pacemakers, Inc.
InventorEric G. Lovett
Life of this patent
Estimating the term…
Abstract
A cardiac pacing system preventing short-long-short pacing sequences. The system providing pacing pulses where necessary. The system having dynamic event window generation to adapt to changes in heart rate. The event window adaptable to process a number of intervals. The system including provisions for other inputs, such as sensor and morphology detection. The system adaptable for single mode and dual mode applications. The system also applicable to long pause prevention in atrial pacing and ventricular pacing.
Claims20
A system, comprising:
- a controller connected to a sense and pulse delivery module, the controller adapted to receive signals from one or more electrodes and provide pulse instructions for delivery of pulses to the one or more electrodes;
- and
- an event window generator connected to the controller, the event window generator adapted to produce event windows for cardiac contraction events, the event windows each being a function of a plurality of intervals between atrial contraction events and a heart rate trajectory being a time derivative of heart rate,
- wherein the controller is adapted to produce an instruction for delivering a pulse if a cardiac contraction event is not detected during an event window beginning from a former cardiac contraction event.
1 more element
Dependencies are inferred from the claim text.