Implantable medical device crosstalk evaluation and mitigation
First Claim
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1. A method comprising:
- determining a noise characteristic of a first electrical signal sensed by a first implantable medical device (IMD) while a second IMD is delivering a second electrical signal to a tissue site within a patient, wherein the first and second IMDs are implanted within the patient;
comparing the noise characteristic of the first electrical signal to a threshold value, wherein comparing the noise characteristic to the threshold value comprises determining whether the noise characteristic is greater than or equal to the threshold value; and
in response to determining the noise characteristic of the first electrical signal is greater than or equal to the threshold value, modifying at least one of a stimulation parameter with which the second IMD generates electrical stimulation that is delivered to the tissue site or a sensing parameter with which the first IMD senses the first electrical signal based on the comparison.
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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.
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Citations
61 Claims
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1. A method comprising:
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determining a noise characteristic of a first electrical signal sensed by a first implantable medical device (IMD) while a second IMD is delivering a second electrical signal to a tissue site within a patient, wherein the first and second IMDs are implanted within the patient; comparing the noise characteristic of the first electrical signal to a threshold value, wherein comparing the noise characteristic to the threshold value comprises determining whether the noise characteristic is greater than or equal to the threshold value; and in response to determining the noise characteristic of the first electrical signal is greater than or equal to the threshold value, modifying at least one of a stimulation parameter with which the second IMD generates electrical stimulation that is delivered to the tissue site or a sensing parameter with which the first IMD senses the first electrical signal based on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A system comprising:
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a first implantable medical device (IMD) configured to sense a first electrical signal within a patient; a second IMD configured to deliver a second electrical signal to a tissue site within the patient, wherein the first IMD is configured to sense the first electrical signal while the second IMD delivers the second electrical signal to the patient; and a processor configured to determine a noise characteristic of the first electrical signal, compare the noise characteristic to a threshold value by at least determining whether the noise characteristic is greater than or equal to the threshold value, and configured to, in response to determining the noise characteristic of the first electrical signal is greater than or equal to the threshold value, modify at least one of a stimulation parameter with which the second IMD generates electrical stimulation therapy or a sensing parameter with which the first IMD senses the first electrical signal based on the comparison. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. A system comprising:
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means for determining a noise characteristic of a first electrical signal sensed by a first implantable medical device (IMD) while a second IMD is delivering a second electrical signal to a tissue site within a patient, wherein the first and second IMDs are implanted within the patient; means for comparing the noise characteristic of the first electrical signal to a threshold value by at least determining whether the noise characteristic is greater than or equal to the threshold value; and means for modifying at least one of a stimulation parameter with which the second IMD generates electrical stimulation that is delivered to the tissue site or a sensing parameter with which the first IMD senses the first electrical signal based on the comparison and in response to the means for comparing determining the noise characteristic of the first electrical signal is greater than or equal to the threshold value. - View Dependent Claims (57, 58)
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59. A non-transitory computer-readable storage medium comprising instructions that cause a programmable processor to:
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determine a noise characteristic of a first electrical signal sensed by a first implantable medical device (IMD) while a second IMD is delivering a second electrical signal to a tissue site within a patient, wherein the first and second IMDs are implanted within the patient; compare the noise characteristic of the first electrical signal to a threshold value by at least determining whether the noise characteristic is greater than or equal to the threshold value; and modify at least one of a stimulation parameter with which the second IMD generates electrical stimulation that is delivered to the tissue site or a sensing parameter with which the first IMD senses the first electrical signal based on the comparison and in response to determining the noise characteristic of the first electrical signal is greater than or equal to the threshold value. - View Dependent Claims (60)
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61. A method comprising evaluating crosstalk between a first implantable medical device (IMD) implanted within a patient and a second IMD implanted within the patient with an external device, wherein the external device:
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determines a characteristic of a first electrical signal sensed by the first IMD while a second IMD is delivering a second electrical signal to a tissue site within a patient; compares the characteristic of the first electrical signal to a threshold value, wherein comparing the characteristic to the threshold value comprises determining whether the characteristic is greater than or equal to the threshold value; and modifies at least one of a stimulation parameter with which the second IMD generates electrical stimulation that is delivered to the tissue site or a sensing parameter with which the first IMD senses the first electrical signal in response to determining the noise characteristic of the first electrical signal is greater than or equal to the threshold value.
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Specification