CPC A61H 23/00 (2013.01) [A61H 23/0218 (2013.01); A61H 23/0245 (2013.01); A61H 23/0263 (2013.01); G16H 20/30 (2018.01); G16H 40/67 (2018.01); A61H 2201/165 (2013.01); A61H 2201/1638 (2013.01); A61H 2201/5007 (2013.01); A61H 2201/5084 (2013.01)] | 22 Claims |
1. A wearable device for mitigating a set of movement disorder symptoms of a subject, the device comprising:
a. a housing;
b. an attachment system, coupled to the housing, and configured to be attached to a body part of a subject;
c. a set of body part sensors, disposed in the housing, to provide a set of sensor outputs related to movement of the body part;
d. a processing unit, disposed in the housing, and operationally coupled to the set of body part sensors and configured, through a feedback loop, to produce, based on the set of sensor outputs, a stimulation signal for mitigating the set of movement disorder symptoms, the processing unit comprising:
(i) a set of filters configured to remove, from the sensor outputs, noise unrelated to the movement disorder symptoms, and
(ii) an active noise cancellation processor configured to (a) transform the sensor outputs into frequency data by applying a Fourier Transform to the sensor outputs, (b) use the frequency data to determine a fundamental frequency of the movement disorder symptoms by applying an argmax function to the transformed sensor outputs, (c) generate the stimulation signal by processing the sensor outputs based on the fundamental frequency, (d) use a bandpass filter to remove, from the stimulation signal, a set of frequency data outside a specified range associated with the fundamental frequency, and (e) apply, to the stimulation signal, a time delay calculated based on the fundamental frequency; and
e. a set of mechanical-transducers, disposed in the attachment system and operationally coupled to the processing unit to provide a set of mechanical outputs; wherein the processing unit is further configured to control the set of mechanical outputs to deliver the stimulation signal to the body part of the subject.
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