Collecting posture and activity information to evaluate therapy
First Claim
1. A method comprising:
- monitoring a plurality of signals, each of the signals generated by a sensor as a function of at least one of activity or posture of a patient;
periodically identifying a posture of the patient based on at least one of the signals;
associating each of the identified postures with a therapy parameter set currently used by a medical device to deliver at least one of a movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient when the posture is identified;
periodically determining an activity level of the patient based on at least one of the signals;
associating each of the determined activity levels with a therapy parameter set currently used by a medical device to deliver the at least one of the movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient when the activity level is determined and a current one of the periodically identified postures; and
for each of a plurality of therapy parameter sets used by the medical device to deliver the at least one of the movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient to the patient, determining a value of an activity metric for each of the periodically identified postures associated with the therapy parameter set based on the activity levels associated with the posture and the therapy parameter set.
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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 comprising:
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monitoring a plurality of signals, each of the signals generated by a sensor as a function of at least one of activity or posture of a patient; periodically identifying a posture of the patient based on at least one of the signals; associating each of the identified postures with a therapy parameter set currently used by a medical device to deliver at least one of a movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient when the posture is identified; periodically determining an activity level of the patient based on at least one of the signals; associating each of the determined activity levels with a therapy parameter set currently used by a medical device to deliver the at least one of the movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient when the activity level is determined and a current one of the periodically identified postures; and for each of a plurality of therapy parameter sets used by the medical device to deliver the at least one of the movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient to the patient, determining a value of an activity metric for each of the periodically identified postures associated with the therapy parameter set based on the activity levels associated with the posture and the therapy parameter set. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medical system comprising:
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a plurality of sensors, each of the sensors generating a signal as a function of at least one of activity or posture of a patient; a medical device that delivers at least one of a movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient; and a processor that monitors the signals generated by the sensors, periodically identifies a posture of the patient based on at least one of the signals, associates each of the identified postures with a therapy parameter set currently used by a medical device when the posture is identified, periodically determines an activity level of the patient based on at least one of the signals, associates each of the determined activity levels with a therapy parameter set currently used by a medical device when the activity level is determined and a current one of the periodically identified postures, and, for each of a plurality of therapy parameter sets used by the medical device to deliver therapy to the patient, determines a value of an activity metric for each of the periodically identified postures associated with the therapy parameter set based on the activity levels associated with the posture and the therapy parameter set. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. 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 as a function of at least one of activity or posture of a patient; periodically identify a posture of the patient based on at least one of the signals; associate each of the identified postures with a therapy parameter set currently used by a medical device to deliver at least one of a movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient when the posture is identified; periodically determine an activity level of the patient based on at least one of the signals; associate each of the determined activity levels with a therapy parameter set currently used by a medical device to deliver the at least one of the movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient when the activity level is determined and a current one of the periodically identified postures; and for each of a plurality of therapy parameter sets used by the medical device to deliver the at least one of the movement disorder therapy, psychological disorder therapy, or deep brain stimulation to the patient to the patient, determine a value of an activity metric for each of the periodically identified postures associated with the therapy parameter set based on the activity levels associated with the posture and the therapy parameter set. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification