IMPLANTABLE MEDICAL DEVICE CROSSTALK EVALUATION AND MITIGATION
First Claim
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1. A method comprising:
- determining whether a therapy module is delivering electrical stimulation to a tissue site within a patient;
monitoring cardiac function of a heart of a patient according to a first sense mode if the therapy module is delivering electrical stimulation to the tissue site;
detecting a potential arrhythmia of the heart of the patient based on the cardiac function monitored according to the first sense mode;
upon detecting the potential arrhythmia, stopping the monitoring of cardiac function according to the first sense mode and monitoring cardiac function of the heart of the patient according to a second sense mode, wherein the first and second sense modes comprise at least one different sensing parameter; and
determining whether the potential arrhythmia is detected based on the cardiac function monitored according to the second sense mode.
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Abstract
Electrical crosstalk between two implantable medical devices or two different therapy modules of a common implantable medical device may be evaluated, and, in some examples, mitigated. In some examples, one of the implantable medical devices or therapy modules delivers electrical stimulation to a nonmyocardial tissue site or a nonvascular cardiac tissue site, and the other implantable medical device or therapy module delivers cardiac rhythm management therapy to a heart of the patient.
108 Citations
35 Claims
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1. A method comprising:
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determining whether a therapy module is delivering electrical stimulation to a tissue site within a patient; monitoring cardiac function of a heart of a patient according to a first sense mode if the therapy module is delivering electrical stimulation to the tissue site; detecting a potential arrhythmia of the heart of the patient based on the cardiac function monitored according to the first sense mode; upon detecting the potential arrhythmia, stopping the monitoring of cardiac function according to the first sense mode and monitoring cardiac function of the heart of the patient according to a second sense mode, wherein the first and second sense modes comprise at least one different sensing parameter; and determining whether the potential arrhythmia is detected based on the cardiac function monitored according to the second sense mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system comprising:
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a first therapy module that delivers electrical stimulation to a tissue site within a patient; a second therapy module that delivers at least one of a pacing, cardioversion or defibrillation electrical signal to the heart of the patient; a sensing module that monitors cardiac function of the heart of the patient; and a processor that determines whether the first therapy module is delivering electrical stimulation to the tissue site, controls the sensing module to monitor cardiac function of the heart of the patient according to a first sense mode if the first therapy module is delivering electrical stimulation to the tissue site, detects a potential arrhythmia of the heart of the patient based on the cardiac function monitored according to the first sense mode, upon detecting the potential arrhythmia, controls the sensing module to stop monitoring cardiac function according to the first sense mode and monitor cardiac function of the heart of the patient according to a second sense mode, wherein the first and second sense modes comprise at least one different sensing parameter value, and determines whether the potential arrhythmia is detected based on the cardiac function monitored according to the second sense mode. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A system comprising:
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means for determining whether a first therapy module is delivering electrical stimulation to a tissue site within a patient; means for monitoring cardiac function of a heart of a patient according to a first sense mode if the therapy module is delivering electrical stimulation to the tissue site; means for detecting a potential arrhythmia of the heart of the patient based on the cardiac function monitored according to the first sense mode; means for stopping the monitoring of cardiac according to a first sense mode and monitoring cardiac function of the heart of the patient according to a second sense mode upon detecting the potential arrhythmia, wherein the first and second sense modes comprise at least one different sensing parameter value; means for determining whether the potential arrhythmia is detected based on the cardiac function monitored according to the second sense mode; and means for delivering at least one of a pacing, cardioversion or defibrillation electrical signal to the heart of the patient with a second therapy module if the potential arrhythmia is detected based on the cardiac function monitored according to the second sense mode. - View Dependent Claims (33, 34)
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35. A computer-readable medium comprising instructions that cause a programmable processor to:
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determine whether a first therapy module is delivering electrical stimulation to a tissue site within a patient; control a sensing module to monitor cardiac function of a heart of a patient according to a first sense mode if the therapy module is delivering electrical stimulation to the tissue site; detect a potential arrhythmia of the heart of the patient based on the cardiac function monitored according to the first sense mode; upon detecting the potential arrhythmia, control the sensing module to stop the monitoring of cardiac according to a first sense mode and monitor cardiac function of the heart of the patient according to a second sense mode, wherein the first and second sense modes comprise at least one different sensing parameter value; determine whether the potential arrhythmia is detected based on the cardiac function monitored according to the second sense mode; and control a second therapy module to deliver at least one of a pacing, cardioversion or defibrillation electrical signal to the heart of the patient if the potential arrhythmia is detected based on the cardiac function monitored according to the second sense mode.
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Specification