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US 6,018,681 AGranted
Implantable atrial defibrillator having therapy inhibition responsive to atrial cycle length
AssigneeInControl, Inc.
InventorJaeho Kim
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Abstract
There is disclosed an atrial defibrillator including a lead system for sensing activity of a heart in or near at least on atrium of the heart, a detector for detecting atrial events from the sensed atrial activity, and a cardioverter for applying cardioverting electrical energy to the atria of the heart when the atria are in need of cardioversion. A timer determines time spans between successive detected atrial events and an inhibit stage precludes the cardioverter from applying cardioverting energy to the heart when a time span is greater than a predetermined limit.
Claims6
An atrial defibrillator comprising:
- means for sensing atrial activity of a heart;
- a detector for detecting atrial events from the sensed atrial activity;
- a cardioverter for applying cardioverting electrical energy to the atria of the heart when the atria are in need of cardioversion;
- means for determining atrial cycle lengths responsive to detected atrial events;
- and
- inhibit means for inhibiting the cardioverter from applying the cardioverting energy when an atrial cycle length is greater than a predetermined limit.
3 more elements
An atrial cardioverter comprising:
- means for sensing atrial activity of a heart;
- an atrial arrhythmia detector responsive to sensed atrial activity for detecting an atrial arrhythmia of the heart;
- atrial therapy means for providing atrial therapy to the heart responsive to detection of an atrial arrhythmia;
- and
- atrial cycle length determining means responsive to sensed atrial activity for inhibiting the provision of atrial therapy when an atrial cycle length exceeds a predetermined length.
2 more elements
Dependencies are inferred from the claim text.