Anti-tachycardia pacing control in an implantable medical device system
AssigneeMedtronic, Inc.
InventorsXusheng Zhang, Yanina Grinberg, Paul R. Solheim, Troy E. Jackson, Timothy A. Ebeling, Vladimir P. Nikolski
Life of this patent
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Abstract
An implantable medical device system is configured to detect a tachyarrhythmia from a cardiac electrical signal and start an ATP therapy delay period. The implantable medical device determines whether the cardiac electrical signal received during the ATP therapy delay period satisfies ATP delivery criteria. A therapy delivery module is controlled to cancel the delayed ATP therapy if the ATP delivery criteria are not met and deliver the delayed ATP therapy if the ATP delivery criteria are met.
Claims21
A medical device comprising:
- a sensing circuit configured to receive a cardiac electrical signal;
- a therapy delivery circuit coupled to the control circuit, the therapy delivery circuit comprising a high voltage capacitor chargeable to a shock voltage amplitude for delivering a cardioversion/defibrillation shock pulse;
- a control circuit coupled to the sensing circuit and the therapy delivery circuit and configured to:
- detect a tachyarrhythmia from the cardiac electrical signal;
- start an anti-tachycardia pacing (ATP) therapy delay period in response to detecting the tachyarrhythmia to delay an ATP therapy;
- compare a charge of the high voltage capacitor to a threshold voltage;
- in response to the charge of the high voltage capacitor meeting the threshold voltage, cancel the delayed ATP therapy;
- and
- in response to the charge of the high voltage capacitor not meeting the threshold voltage, control the therapy delivery circuit to adjust the charge of the high voltage capacitor to a pacing voltage amplitude during the ATP therapy delay period.
A method comprising:
- receiving a cardiac electrical signal;
- detecting a tachyarrhythmia from the cardiac electrical signal;
- starting an anti-tachycardia pacing (ATP) therapy delay period in response to detecting the tachyarrhythmia to delay an ATP therapy;
- comparing a charge of a high voltage capacitor to a threshold voltage, the high voltage capacitor chargeable to a shock voltage amplitude for delivering a cardioversion/defibrillation shock pulse;
- in response to the charge of the high voltage capacitor meeting the threshold voltage, cancelling the delayed ATP therapy;
- and
- in response to the charge of the high voltage capacitor not meeting the threshold voltage, adjusting the charge of the high voltage capacitor to a pacing voltage amplitude during the ATP therapy delay period.
A non-transitory computer readable medium storing a set of instructions that, when executed by a control circuit of a medical device, cause the medical device to:
- receive a cardiac electrical signal;
- detect a tachyarrhythmia from the cardiac electrical signal;
- start an anti-tachycardia pacing (ATP) therapy delay period in response to detecting the tachyarrhythmia to delay an ATP therapy;
- compare a charge of a high voltage capacitor to a threshold voltage, the high voltage capacitor chargeable to a shock voltage amplitude for delivering a cardioversion/defibrillation shock pulse;
- in response to the charge of the high voltage capacitor meeting the threshold voltage, cancel the delayed ATP therapy;
- and
- in response to the charge of the high voltage capacitor not meeting the threshold voltage, adjust the charge of the high voltage capacitor to a pacing voltage amplitude during the ATP therapy delay period.
Dependencies are inferred from the claim text.