Cardiac stimulation device with selective atrial pacing on premature ventricular complex detection and method
First Claim
1. An implantable cardiac stimulation device comprising:
- an atrial pulse generator that provides atrial pacing pulses;
a premature ventricular complex detector that detects premature ventricular complexes of the heart;
a sensing circuit that senses atrial events; and
a P wave discriminator that identifies an atrial event sensed by the sensing circuit following detection of a premature ventricular complex as one of a retrograde P wave and a normal sinus P wave,the atrial pulse generator being adapted to deliver an atrial pacing pulse responsive to the discriminator identifying an atrial event sensed by the sensing circuit following detection of a premature ventricular complex as a retrograde P wave andan inhibit circuit that inhibits the atrial pulse generator from providing an atrial pacing pulse responsive to the discriminator failing to identify an atrial event sensed by the sensing circuit following detection of a premature ventricular complex as a retrograde P wave.
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Accused Products
Abstract
An implantable cardiac stimulation device provides selective atrial pacing upon detection of a premature ventricular complex (PVC). The device comprises a premature ventricular complex detector that detects premature complexes of the heart, and a sensing circuit that senses atrial events. The device further comprises a P wave discriminator that identifies an atrial event sensed by the sensing circuit following detection of a premature ventricular complex as one of a retrograde P wave and a normal sinus P wave, and an atrial pulse generator that delivers an atrial pacing pulse responsive to the discriminator identifying an atrial event sensed by the sensing circuit following detection of a premature ventricular complex as a retrograde P wave.
19 Citations
12 Claims
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1. An implantable cardiac stimulation device comprising:
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an atrial pulse generator that provides atrial pacing pulses; a premature ventricular complex detector that detects premature ventricular complexes of the heart; a sensing circuit that senses atrial events; and a P wave discriminator that identifies an atrial event sensed by the sensing circuit following detection of a premature ventricular complex as one of a retrograde P wave and a normal sinus P wave, the atrial pulse generator being adapted to deliver an atrial pacing pulse responsive to the discriminator identifying an atrial event sensed by the sensing circuit following detection of a premature ventricular complex as a retrograde P wave and an inhibit circuit that inhibits the atrial pulse generator from providing an atrial pacing pulse responsive to the discriminator failing to identify an atrial event sensed by the sensing circuit following detection of a premature ventricular complex as a retrograde P wave. - View Dependent Claims (2, 3, 4, 5)
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6. An implantable cardiac stimulation device comprising:
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a premature ventricular complex detector that detects premature complexes of the heart; a sensing circuit that senses atrial events; a P wave discriminator that identifies an atrial event sensed by the sensing circuit following detection of a premature ventricular complex as one of a retrograde P wave and a normal sinus P wave; an atrial pulse generator that delivers an atrial pacing pulse responsive to the discriminator identifying the atrial event sensed by the sensing circuit following detection of a premature ventricular complex as a retrograde P wave; an inhibit circuit that inhibits the atrial pulse generator from providing an atrial pacing pulse responsive to the discriminator failing to identify the atrial event sensed by the sensing circuit following detection of a premature ventricular complex as a retrograde P wave; and a ventricular pulse generator that delivers a ventricular pacing pulse responsive to the discriminator failing to identify the atrial event sensed by the sensing circuit following detection of a premature ventricular complex as a retrograde P wave. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification