Atrial defibrillator and method for providing interval timing prior to cardioversion
First Claim
1. An implantable atrial defibrillator for providing cardioverting electrical energy to the atria of a human heart in need of cardioversion, said atrial defibrillator comprising:
- first detecting means for detecting ventricular activations of the heart;
second detecting means for detecting atrial activity of the heart;
atrial fibrillation detecting means responsive to said second detecting means for determining when the atria of the heart are in need of cardioversion; and
cardioverting means for applying said cardioverting electrical energy to the atria of the heart when the atria of the heart are in need of cardioversion and when the time between immediately successive ventricular activations is greater than a preselected minimum time interval.
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Accused Products
Abstract
An implantable atrial defibrillator provides cardioverting electrical energy to the atria of a human heart in need of cardioversion. The atrial defibrillator includes a first detector for detecting ventricular activations of the heart, a second detector for detecting atrial activity of the heart, and an atrial fibrillation detector responsive to the second detector for determining when the atria of the heart are in need of cardioversion. The atrial defibrillator also includes a cardioverting stage for applying the cardioverting electrical energy to the atria of the heart when the atria of the heart are in need of cardioversion and when the time between immediately successive ventricular activations is greater than a preselected minimum time interval.
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Citations
13 Claims
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1. An implantable atrial defibrillator for providing cardioverting electrical energy to the atria of a human heart in need of cardioversion, said atrial defibrillator comprising:
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first detecting means for detecting ventricular activations of the heart; second detecting means for detecting atrial activity of the heart; atrial fibrillation detecting means responsive to said second detecting means for determining when the atria of the heart are in need of cardioversion; and cardioverting means for applying said cardioverting electrical energy to the atria of the heart when the atria of the heart are in need of cardioversion and when the time between immediately successive ventricular activations is greater than a preselected minimum time interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of applying cardioverting electrical energy to the atria of a human heart in need of cardioversion, said method including the steps of:
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detecting ventricular activations of the heart; detecting atrial activity of the heart; determining, responsive to said detected atrial activity of the heart, when the atria of the heart are in need of cardioversion; and applying said cardioverting electrical energy to the atria of the heart when the atria of the heart are in need of cardioversion and when the time between immediately successive ventricular activations is greater than a preselected minimum time interval. - View Dependent Claims (10, 11, 12)
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13. An atrial defibrillator for providing cardioverting electrical energy to the atria of a human heart, said atrial defibrillator comprising:
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detecting means for detecting ventricular activations of the heart; and cardioverting means for applying said cardioverting electrical energy to the atria of the heart when the time between immediately successive ventricular activations detected by said detecting means is greater than a preselected minimum time interval.
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Specification