Systems and methods for leadless pacing and shock therapy
First Claim
1. A method of coordinating operation of a subcutaneous implantable cardioverter defibrillator (SICD) and a pacing device (PD) implanted within a heart of a patient using one-way communication from the SICD to the PD, the method comprising:
- determining, by the SICD and based on a detected tachyarrhythmia, to deliver anti-tachyarrhythmia therapy to the patient to treat the detected tachyarrhythmia;
transmitting, by the SICD, a communication from the SICD to the PD requesting the PD deliver anti-tachyarrhythmia therapy to the patient in accordance with a communication protocol;
determining, by the SICD and without direct communication from PD to the SICD in accordance with the communication protocol, that the PD did not deliver anti-tachyarrhythmia therapy; and
adjusting, by the SICD and based on the determination that the PD did not deliver anti-tachyarrhythmia therapy, at least one of a tachyarrhythmia detection criteria and a therapy parameter of the SICD.
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Accused Products
Abstract
Techniques and systems for monitoring cardiac arrhythmias and delivering electrical stimulation therapy using a subcutaneous implantable cardioverter defibrillator (SICD) and a leadless pacing device (LPD) are described. For example, the SICD may detect a tachyarrhythmia within a first electrical signal from a heart and determine, based on the tachyarrhythmia, to deliver anti-tachyarrhythmia shock therapy to the patient to treat the detected arrhythmia. The LPD may receive communication from the SICD requesting the LPD deliver anti-tachycardia pacing to the heart and determine, based on a second electrical signal from the heart sensed by the LPD, whether to deliver anti-tachycardia pacing (ATP) to the heart. In this manner, the SICD and LPD may communicate to coordinate ATP and/or cardioversion/defibrillation therapy. In another example, the LPD may be configured to deliver post-shock pacing after detecting delivery of anti-tachyarrhythmia shock therapy.
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Citations
20 Claims
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1. A method of coordinating operation of a subcutaneous implantable cardioverter defibrillator (SICD) and a pacing device (PD) implanted within a heart of a patient using one-way communication from the SICD to the PD, the method comprising:
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determining, by the SICD and based on a detected tachyarrhythmia, to deliver anti-tachyarrhythmia therapy to the patient to treat the detected tachyarrhythmia; transmitting, by the SICD, a communication from the SICD to the PD requesting the PD deliver anti-tachyarrhythmia therapy to the patient in accordance with a communication protocol; determining, by the SICD and without direct communication from PD to the SICD in accordance with the communication protocol, that the PD did not deliver anti-tachyarrhythmia therapy; and adjusting, by the SICD and based on the determination that the PD did not deliver anti-tachyarrhythmia therapy, at least one of a tachyarrhythmia detection criteria and a therapy parameter of the SICD. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An implantable cardioverter defibrillator (ICD) comprising:
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one or more electrodes configured to be implanted external to a heart of a patient; a housing configured to be implanted in a patient external to a ribcage of the patient; a communication module configured to transmit communication messages in accordance with a communication protocol to a pacing device (PD) implanted within a heart of the patient; a sensing module configured to sense an electrical signal from the heart of the patient via the one or more electrodes; and a processor configured to; detect a tachyarrhythmia within the electrical signal sensed by the sensing module; determine, based on the detected tachyarrhythmia, to deliver anti-tachyarrhythmia therapy to the patient to treat the detected tachyarrhythmia; transmit, via the communication module and based on the determination to delivery anti-tachyarrhythmia therapy, a communication message to the PD requesting the PD to deliver anti-tachycardia pacing to the heart of the patient; determine, without direct communication from PD to the SICD in accordance with the communication protocol, whether the PD delivered anti-tachycardia pacing; and adjusting, based on the determination of whether the PD delivered anti-tachycardia pacing, operation of the ICD. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method of coordinating operation of a subcutaneous implantable cardioverter defibrillator (SICD) and a pacing device (PD) implanted within a heart of a patient using one-way communication from the SICD to the PD, the method comprising:
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determining, by the SICD and based on a detected tachyarrhythmia, to deliver anti-tachyarrhythmia therapy to the patient to treat the detected tachyarrhythmia; sending, by the SICD, a first communication in accordance with a communication protocol requesting the PD delivery anti-tachycardia pacing; receiving, by the PD, the first communication from the SICD requesting the PD deliver anti-tachycardia pacing to the heart of the patient; determining, by the PD, not to deliver anti-tachycardia pacing to the patient; determining, by the SICD and without direct communication from PD to the SICD in accordance with the communication protocol, that the PD did not anti-tachycardia pacing; and sending, by the SICD and based on the determination that the PD did not deliver anti-tachycardia pacing, a second communication in accordance with the communication protocol, wherein the second communication is sent using at least one of a different communication vector and a higher power signal.
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Specification