Collecting posture and activity information to evaluate therapy
First Claim
1. A method for evaluating a neurostimulation therapy delivered to a patient by an implantable medical device system, the method comprising:
- monitoring a plurality of signals, each of the signals generated by at least one sensor of the implantable medical device system as a function of at least one of activity or posture of the patient;
determining whether the patient is in a target posture based on at least one of the signals;
periodically determining an activity level of the patient based on at least one of the signals when the patient is in the target posture;
periodically determining values of at least one activity metric based on the activity levels determined when the patient was in the target posture; and
displaying for a user the determined activity metric values in a manner that is indicative of efficacy of the neurostimulation therapy delivered to the patient.
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Accused Products
Abstract
A medical device, programmer, or other computing device may determine values of one or more activity and, in some embodiments, posture metrics for each therapy parameter set used by the medical device to deliver therapy. The metric values for a parameter set are determined based on signals generated by the sensors when that therapy parameter set was in use. Activity metric values may be associated with a postural category in addition to a therapy parameter set, and may indicate the duration and intensity of activity within one or more postural categories resulting from delivery of therapy according to a therapy parameter set. A posture metric for a therapy parameter set may indicate the fraction of time spent by the patient in various postures when the medical device used a therapy parameter set. The metric values may be used to evaluate the efficacy of the therapy parameter sets.
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Citations
21 Claims
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1. A method for evaluating a neurostimulation therapy delivered to a patient by an implantable medical device system, the method comprising:
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monitoring a plurality of signals, each of the signals generated by at least one sensor of the implantable medical device system as a function of at least one of activity or posture of the patient; determining whether the patient is in a target posture based on at least one of the signals; periodically determining an activity level of the patient based on at least one of the signals when the patient is in the target posture; periodically determining values of at least one activity metric based on the activity levels determined when the patient was in the target posture; and displaying for a user the determined activity metric values in a manner that is indicative of efficacy of the neurostimulation therapy delivered to the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical system comprising:
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one or more sensors, each of the sensors generating a signal as a function of at least one of activity or posture of a patient; an implantable medical device that delivers a neurostimulation therapy to a patient; and a processor that; determines whether the patient is in a target posture based on at least one of the signals, periodically determines an activity level of the patient based on at least one of the signals when the patient is in the target posture, and periodically determines values of at least one activity metric based on the activity levels determined when the patient was in the target posture; and a computing device that displays for a user the determined activity metric values in a manner that is indicative of efficacy of the neurostimulation therapy delivered to the patient. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A medical system comprising:
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means for monitoring a plurality of signals, each of the signals generated as a function of at least one of activity or posture of the patient; means for determining whether the patient is in a target posture based on at least one of the signals; means for periodically determining an activity level of the patient based on at least one of the signals when the patient is in the target posture; means for periodically determining values of at least one activity metric based on the activity levels determined when the patient was in the target posture; and means for presenting the determined activity metric values to a user in a manner that is indicative of efficacy of a neurostimulation therapy delivered to the patient.
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21. A non-transitory computer-readable medium comprising instructions that cause a processor to:
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monitor a plurality of signals, each of the signals generated by a sensor of the implantable medical device system as a function of at least one of activity or posture of the patient; determine whether the patient is in a target posture based on at least one of the signals; periodically determine an activity level of the patient based on at least one of the signals when the patient is in the target posture; periodically determine values of at least one activity metric based on the activity levels determined when the patient was in the target posture; and cause display of the determined activity metric values for a user in a manner that is indicative of efficacy of a neurostimulation therapy delivered to the patient.
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Specification