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.] An anti-arrhythmia device, comprising:means for sensing depolarizations of heart tissue;means for defining a set of prioritized rules which may be simultaneously met, including a first rule indicating the need for delivery of anti-arrhythmi

[ In conjunction with the above disclosure, we claim:] [1.] An anti-arrhythmia device, comprising:means for sensing depolarizations of heart tissue;means for defining a set of prioritized rules which may be simultaneously met, including a first rule indicating the need for delivery of anti-arrhythmia therapy and a second rule which indicates that an anti-arrhythmia therapy is not needed, each of said prioritized rules defining at least one criterion based upon characteristics of said sensed depolarizations of heart tissue, each of said prioritized rules being met responsive to a said criterion of said prioritized rule being met;analyzing means for determining which of said prioritized rules are met, comprising means for determining whether sensed depolarizations continue to meet a said criterion of one of said prioritized rules over a sequence of said sensed depolarizations and means responsive to said sensed depolarizations continuing to meet said criterion of said one of said prioritized rules over said sequence of sensed depolarizations for determining which of said prioritized rules are met;means for determining the highest priority one of said prioritized rules which are met;means responsive to the first rule being the highest priority rule met, for delivering an anti-arrhythmia therapy; andmeans responsive to the second rule being the highest priority rule met, for preventing delivery of an anti-arrhythmia therapy.