Prioritized rule based method and apparatus for diagnosis and treatment of arrhythmias
First Claim
1. An implantable anti-tachyarrhythmia device, comprising:
- means for delivering an anti-tachyarrhythmia therapy to a heart;
means for defining atrial tachyarrhythmia criteria indicative of the presence of atrial tachyarrhythmia;
means for monitoring heart rhythm;
means for indicating whether said monitored heart rhythm currently meets said atrial tachyarrhythmia criteria;
means for detecting termination of atrial tachyarrhythmia;
timer means, initiated on said atrial tachyarrhythmia criteria being met and continuing to time until termination of atrial tachyarrhythmia is detected, said timer continuing to time even if said atrial tachyarrhythmia criteria cease to be met;
means responsive to said timer means indicating that a defined time interval has passed since said atrial tachyarrhythmia criteria were met concurrent with said indicating means indicating that said atrial tachyarrhythmia criteria are currently met, for triggering delivery of said anti-arrhythmia therapy.
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Abstract
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.
579 Citations
12 Claims
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1. An implantable anti-tachyarrhythmia device, comprising:
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means for delivering an anti-tachyarrhythmia therapy to a heart; means for defining atrial tachyarrhythmia criteria indicative of the presence of atrial tachyarrhythmia; means for monitoring heart rhythm; means for indicating whether said monitored heart rhythm currently meets said atrial tachyarrhythmia criteria; means for detecting termination of atrial tachyarrhythmia; timer means, initiated on said atrial tachyarrhythmia criteria being met and continuing to time until termination of atrial tachyarrhythmia is detected, said timer continuing to time even if said atrial tachyarrhythmia criteria cease to be met; means responsive to said timer means indicating that a defined time interval has passed since said atrial tachyarrhythmia criteria were met concurrent with said indicating means indicating that said atrial tachyarrhythmia criteria are currently met, for triggering delivery of said anti-arrhythmia therapy. - View Dependent Claims (2, 3)
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4. An implantable anti-tachyarrhythmia device, comprising:
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means for delivering an anti-tachyarrhythmia therapy to a heart; means for defining atrial tachyarrhythmia criteria indicating the presence of atrial tachyarrhythmia; means for monitoring heart rhythm; means for indicating whether said monitored heart rhythm currently meets said atrial tachyarrhythmia criteria; means for detecting termination of atrial tachyarrhythmia, comprising means for defining termination criteria differing from a failure to currently meet said atrial tachyarrhythmia criteria and means for indicating whether said monitored heart rhythm currently meets said termination criteria; timer means, initiated on said atrial tachyarrhythmia criteria being met and continuing to time until termination of atrial tachyarrhythmia is detected, said timer continuing to time even if said criteria cease to be met; means responsive to said timer means indicating that a defined time interval has passed since said atrial tachyarrhythmia criteria were met concurrent with said indicating means indicating that said atrial tachyarrhythmia criteria are currently met, for triggering delivery of said anti-arrhythmia therapy. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
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Specification