초록 ▼

An implantable anti-tachyarrhythmia device which delivers anti-tachyarrhythmia therapies to a patient's heart in response to detection of tachyarrhythmias. The device defines first criteria indicating the presence of atrial tachycardia and second criteria indicating the presence of atrial fibrillati

An implantable anti-tachyarrhythmia device which delivers anti-tachyarrhythmia therapies to a patient's heart in response to detection of tachyarrhythmias. The device defines first criteria indicating the presence of atrial tachycardia and second criteria indicating the presence of atrial fibrillation, and compares the time elapsed since the either the first or second criteria were initially met to a defined time duration. In response to the defined duration having passed and either of the first or second criteria being met, the device triggers delivery of an appropriate anti-tachyarrhythmia therapy. The timer is reset on detection of termination of atrial tachyarrhythmia, but not on failure of the first and second criteria to be met. The first and second criteria are defined such that they can not be concurrently met.

대표청구항 ▼

[ In conjunction with the above disclosure, we claim:] [1.] An implantable anti-tachyarrhythmia device, comprising:means for delivering a ventricular anti-tachyarrhythmia therapy to a heart;means for defining atrial fibrillation criteria indicating the presence of atrial fibrillation;means for defin

[ In conjunction with the above disclosure, we claim:] [1.] An implantable anti-tachyarrhythmia device, comprising:means for delivering a ventricular anti-tachyarrhythmia therapy to a heart;means for defining atrial fibrillation criteria indicating the presence of atrial fibrillation;means for defining ventricular tachyarrhythmia criteria indicating the presence of ventricular tachyarrhythmia;means for monitoring heart rhythm;means for indicating whether said monitored heart rhythm currently meets both said supraventricular and ventricular tachyarrhythmia criteria;means responsive to both said atrial fibrillation and ventricular tachyarrhythmia criteria being met for triggering delivery of said ventricular anti-tachyarrhythmia therapy.