Patent ID: 8170669

Claim:
An implantable cardiac rhythm management device, comprising: a pacing circuit configured to deliver atrial pacing pulses and ventricular pacing pulses; a tachyarrhythmia detection and classification circuit including: a cardiac sensing circuit configured to sense cardiac signals indicative of atrial depolarizations and ventricular depolarizations; a rate detector configured to detect an atrial rate and a ventricular rate using the cardiac signals; a tachyarrhythmia detector configured to detect tachyarrhythmia using the ventricular rate and one or more tachyarrhythmia threshold rates; and a tachyarrhythmia classifier configured to classify the detected tachyarrhythmia; and an anti-tachycardia pacing (ATP) control circuit coupled to the pacing circuit and the tachyarrhythmia detection and classification circuit, the ATP control circuit configured to control delivery of the atrial pacing pulses and the ventricular pacing pulses according to a plurality of ATP modes including an atrial ATP (A-ATP) mode, a ventricular ATP (V-ATP) mode, and a concurrent atrio-ventricular ATP (concurrent AV-ATP) mode, the concurrent ATP mode being an ATP mode during which the atrial pacing pulses and the ventricular pacing pulses are delivered concurrently, the ATP control circuit including an ATP mode selector configured to select an ATP mode from the plurality of ATP modes using one or more specified ATP mode selection criteria and the classification of the detected tachyarrhythmia.