DISTRIBUTED LEAD FUNCTIONALITY TESTING
First Claim
1. A method for performing a lead functionality test for at least one electrical lead implanted within in a patient comprising:
- defining multiple combinations of electrodes to test during a lead functionality test, each of the combinations of electrodes including at least one electrode carried by the at least one electrical lead;
measuring an electrical parameter for each of the combinations over a series of measurement sessions, wherein measuring the electrical parameter for each of the combinations over a series of measurement sessions comprises controlling measurement of the electrical parameter for a different one or more of the combinations during each of the measurement sessions; and
delivering a plurality of therapeutic stimulation pulses to the patient via the electrical lead between consecutive measurement sessions.
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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.
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Citations
25 Claims
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1. A method for performing a lead functionality test for at least one electrical lead implanted within in a patient comprising:
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defining multiple combinations of electrodes to test during a lead functionality test, each of the combinations of electrodes including at least one electrode carried by the at least one electrical lead; measuring an electrical parameter for each of the combinations over a series of measurement sessions, wherein measuring the electrical parameter for each of the combinations over a series of measurement sessions comprises controlling measurement of the electrical parameter for a different one or more of the combinations during each of the measurement sessions; and delivering a plurality of therapeutic stimulation pulses to the patient via the electrical lead between consecutive measurement sessions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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at least one electrical lead implantable within a patient; and a processor that; defines multiple combinations of electrodes to test during a lead functionality test, each of the combinations of electrodes including at least one electrode carried by the at least one electrical lead; controls measurement of an electrical parameter for each of the combinations over a series of measurement sessions, wherein, in controlling of the measurement of an electrical parameter for each of the combinations over a series of measurement sessions, the processor controls measurement of the electrical parameter for a different one or more of the combinations during each of the measurement sessions; and directs delivery of a plurality of therapeutic stimulation pulses to the patient via the electrical lead between consecutive measurement sessions. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system comprising:
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means for defining multiple combinations of electrodes to test during a lead functionality test, each of the combinations of electrodes including at least one electrode carried by the at least one electrical lead; means for measuring an electrical parameter for each of the combinations over a series of measurement sessions, wherein measuring the electrical parameter for each of the combinations over a series of measurement sessions comprises controlling measurement of the electrical parameter for a different one or more of the combinations during each of the measurement sessions; and means for delivering a plurality of therapeutic stimulation pulses to the patient via the electrical lead between consecutive measurement sessions. - View Dependent Claims (23, 24, 25)
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Specification