Collecting activity information to evaluate therapy
First Claim
1. A method comprising:
- monitoring a signal that varies as a function of patient activity;
periodically determining an activity level of the patient based on the signal;
associating each of the determined activity levels with a therapy parameter set used by a medical device to deliver a therapy to a patient when the activity level was determined;
determining a value of at least one activity metric for each of a plurality of therapy parameter sets based on activity levels associated with the therapy parameter sets, wherein determining a value of at least one activity metric comprises;
comparing each of the activity levels associated with the therapy parameter set to a threshold value; and
determining an average length of time that consecutively determined activity levels associated with the therapy parameter set were above the threshold.
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Accused Products
Abstract
A medical device delivers a therapy to a patient. The medical device may periodically determine an activity level of the patient, and associate each determined activity level with a current therapy parameter set. A value of at least one activity metric is determined for each of a plurality of therapy parameter sets based on the activity levels associated with that therapy parameter set. A list of the therapy parameter sets is presented to a user, such as a clinician, for evaluation of the relative efficacy of the therapy parameter sets. The list may be ordered according to the one or more activity metric values to aid in evaluation of the therapy parameter sets. Where values are determined for a plurality of activity metrics, the list may be ordered according to the one of the activity metrics selected by the user.
307 Citations
61 Claims
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1. A method comprising:
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monitoring a signal that varies as a function of patient activity; periodically determining an activity level of the patient based on the signal; associating each of the determined activity levels with a therapy parameter set used by a medical device to deliver a therapy to a patient when the activity level was determined; determining a value of at least one activity metric for each of a plurality of therapy parameter sets based on activity levels associated with the therapy parameter sets, wherein determining a value of at least one activity metric comprises; comparing each of the activity levels associated with the therapy parameter set to a threshold value; and determining an average length of time that consecutively determined activity levels associated with the therapy parameter set were above the threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A medical system comprising:
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a medical device that delivers a therapy to a patient; and a processor that monitors a signal that varies as a function of patient activity, periodically determines an activity level of the patient based on the signal, associates each of the determined activity levels with a therapy parameter set used by the medical device to deliver the therapy to the patient when the activity level was determined, and determines a value of at least one activity metric for each of a plurality of therapy parameter sets based on activity levels associated with the therapy parameter sets, wherein for each of the plurality of therapy parameter sets, the processor compares each of the activity levels associated with the therapy parameter set to a threshold value, and determines as an activity metric value for the parameter set an average length of time that consecutively determined activity levels were above the threshold. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A medical system comprising:
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means for monitoring a signal that varies as a function of patient activity via a medical device that delivers a therapy to a patient; means for periodically determining an activity level of the patient based on the signal; means for associating each of the determined activity levels with a therapy parameter set that was used by a medical device to deliver a therapy to a patient when the activity level was determined; means for determining a value of an activity metric for each of a plurality of therapy parameter sets based on activity levels associated with the therapy parameter sets; and means for presenting a list of the plurality of therapy parameter sets and activity metric values associated with the therapy parameter sets. - View Dependent Claims (46, 47)
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48. A computer-readable medium comprising instructions that cause a programmable processor to:
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receive information identifying a plurality of therapy parameter sets and associated activity levels from an implantable medical device; determine a value of an activity metric for each of a plurality of therapy parameter sets based on activity levels associated with the therapy parameter sets; and present a list of the plurality of therapy parameter sets and activity metric values associated with the therapy parameter sets. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55)
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56. A method comprising:
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monitoring a signal that varies as a function of patient activity; periodically determining an activity level of the patient based on the signal; associating each of the determined activity levels with a therapy parameter set used by a medical device to deliver a therapy to a patient when the activity level was determined; for each of the therapy parameter sets, determining at least one of a mean or a median of activity levels associated with the therapy parameter set; comparing the at least one of the mean or the median activity level for each of the therapy parameter sets to at least one threshold; and selecting an activity metric value for each of the therapy parameter sets from a plurality of predetermined possible activity metric values based on the comparison.
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57. A medical system comprising:
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a medical device that delivers a therapy to a patient; and a processor that monitors a signal that varies as a function of patient activity, periodically determines an activity level of the patient based on the signal, associates each of the determined activity levels with a therapy parameter set used by the medical device to deliver the therapy to the patient when the activity level was determined, for each of the parameter sets, determines at least one of a mean or a median of activity levels associated with the therapy parameter set, compares the at least one of the mean or the median activity level for each of the therapy parameter sets to at least one threshold, and selects an activity metric value for each of the therapy parameter sets from a plurality of predetermined possible activity metric values based on the comparison.
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58. A method comprising:
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monitoring a signal that varies as a function of patient activity; periodically determining an activity level of the patient based on the signal; associating each of die determined activity levels with a therapy parameter set used by a medical device to deliver a therapy to a patient when the activity level was determined; determining a value of at least one activity metric for each of a plurality of therapy parameter sets based on activity levels associated with the therapy parameter sets; and presenting a list of the plurality of therapy parameter sets and activity metric values associated with the therapy parameter sets. - View Dependent Claims (59, 60, 61)
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Specification