초록 ▼

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 characterist

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.

대표청구항 ▼

[ In conjunction with the above disclosure, we claim:] [1.]1. An anti-arrhythmia device comprising:means for sensing depolarizations of heat tissue;means for defining a set of prioritized rules, each of said rules defining one or more criteria based upon characteristics of said sensed depolarization

[ In conjunction with the above disclosure, we claim:] [1.]1. An anti-arrhythmia device comprising:means for sensing depolarizations of heat tissue;means for defining a set of prioritized rules, each of said rules defining one or more criteria based upon characteristics of said sensed depolarizations of heart tissue, each said rule being met when the criteria of said rule are met, said rules defined such that at least a first one and a second one of said rules are capable of being simultaneously met, at least said first one of said rules when met indicating need for delivery of an anti-arrhythmia therapy, at leas said second one or said rules when met indicating that anti-arrhythmia therapy should not be delivered;means for analyzing said characteristics of said sensed depolarizations to determine which of said first and second rules are met, said analyzing means comprising means responsive to any one of said first and second rules being met for determining thereafter that the rule that is met is no longer met only after a plurality of sensed depolarizations fail to meet one of the criteria of the rule;means operable when the criteria for both the first and second rules are met for determining the highest priority one of said first and second rules which are met; andmeans responsive to a determination that said first one of said first and second rules that is met constitutes the highest priority rule met for triggering delivery of an anti-arrhythmia therapy.