Automatic lead functionality testing
First Claim
1. A method comprising:
- determining whether a patient is within a target activity state based on a physiological sensor signal; and
automatically performing a lead functionality test for at least one electrical lead implanted within the patient when the patient is within the target activity state.
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Abstract
Techniques for performing lead functionality tests, e.g., lead impedance tests, for implantable electrical leads are described. In some of the described embodiments, an implantable medical device determines whether a patient is in a target activity state, e.g., an activity state in which lead impedance testing will be unobtrusive, such as when a patient is asleep, or capture information of particular interest, such as when the patient is active, in a particular posture, or changing postures. The implantable medical device performs the lead functionality test based on this determination. Additionally, in some embodiments, the implantable medical device may group a plurality of measurements for a single lead functionality test into a plurality of sessions, and perform the measurement sessions interleaved with delivery of therapeutic stimulation.
119 Citations
24 Claims
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1. A method comprising:
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determining whether a patient is within a target activity state based on a physiological sensor signal; and
automatically performing a lead functionality test for at least one electrical lead implanted within the patient when the patient is within the target activity state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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at least one electrical lead implanted within a patient;
a physiological sensor that generates a physiological sensor signal; and
a processor that determines whether the patient is within a target activity state based on the physiological sensor signal, and initiates performance of a lead functionality test for the lead when the patient is within the target activity state. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system comprising:
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means for determining whether a patient is within a target activity state based on a physiological sensor signal; and
means for performing a lead functionality test for at least one electrical lead implanted within the patient when the patient is within the target activity state. - View Dependent Claims (22, 23, 24)
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Specification