Prioritized rule based method and apparatus for diagnosis and treatment of arrhythmias
First Claim
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1. A heart depolarization monitoring device, comprising:
- means for sensing depolarizations of a patient'"'"'s atria and ventricles;
a P-wave counter counting atrial depolarizations falling between two successive ventricular depolarizations to provide a P-wave count; and
an atrial evidence counter, providing an evidence count, said evidence counter comprising means for incrementing the evidence count responsive to the P-wave count being at least equal to a predetermined first number and means for decrementing the evidence count responsive to said P-wave count no greater than a predetermined second number lower than said first number.
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Abstract
An implantable antiarrhythmia device which detects and classifies arrhythmias of the human heart, and delivers appropriate therapy. The device employs a method of arrhythmia classification based on a set of prioritized rules, each of the rules defining a plurality of criteria based upon characteristics of sensed depolarizations of heart tissue, each rule being met when the criteria associated with the rule are met. Some rules, when met, trigger delivery of antiarrhythmia therapy. Other rules, when met, inhibit delivery of antiarrhythmia therapy. The rules may be met simultaneously, and if so, the highest priority rule governs the behavior of the device.
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Citations
9 Claims
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1. A heart depolarization monitoring device, comprising:
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means for sensing depolarizations of a patient'"'"'s atria and ventricles; a P-wave counter counting atrial depolarizations falling between two successive ventricular depolarizations to provide a P-wave count; and an atrial evidence counter, providing an evidence count, said evidence counter comprising means for incrementing the evidence count responsive to the P-wave count being at least equal to a predetermined first number and means for decrementing the evidence count responsive to said P-wave count no greater than a predetermined second number lower than said first number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification