Therapy control based on a patient movement state
First Claim
1. A method comprising:
- monitoring a bioelectrical brain signal from a brain of a patient;
determining the brain signal indicates the patient is in a movement state, wherein the brain signal that indicates the patient is in the movement state results from a volitional patient movement or volitional intention to move;
at a first time, controlling delivery of therapy to the patient based on determining the brain signal indicates the patient is in the movement state;
at a second time following the first time, determining whether the patient is in the movement state; and
controlling the delivery of the therapy to the patient based on whether the patient is in the movement state at the second time following the first time.
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Accused Products
Abstract
A movement state of a patient is detected based on brain signals, such as an electroencephalogram (EEG) signal. In some examples, a brain signal within a dorsal-lateral prefrontal cortex of a brain of the patient indicative of prospective movement of the patient may be sensed in order to detect the movement state. The movement state may include the brain state that indicates the patient is intending on initiating movement, initiating movement, attempting to initiate movement or is actually moving. In some examples, upon detecting the movement state, a movement disorder therapy is delivered to the patient. In some examples, the therapy delivery is deactivated upon detecting the patient is no longer in a movement state or that the patient has successfully initiated movement. In addition, in some examples, the movement state detected based on the brain signals may be confirmed based on a signal from a motion sensor.
174 Citations
34 Claims
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1. A method comprising:
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monitoring a bioelectrical brain signal from a brain of a patient; determining the brain signal indicates the patient is in a movement state, wherein the brain signal that indicates the patient is in the movement state results from a volitional patient movement or volitional intention to move; at a first time, controlling delivery of therapy to the patient based on determining the brain signal indicates the patient is in the movement state; at a second time following the first time, determining whether the patient is in the movement state; and controlling the delivery of the therapy to the patient based on whether the patient is in the movement state at the second time following the first time. - 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 system comprising:
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a sensing module that monitors an bioelectrical brain signal of a patient; and a processor that determines the bioelectrical brain signal indicates the patient is in a movement state and, at a first time, controls delivery of therapy to the patient based on determining the bioelectrical brain signal indicates the patient is in a movement state, wherein the processor, at a second time following the first time, determines whether the patient is in the movement state and controls the delivery of the therapy to the patient based on whether the patient is in the movement state at the second time following the first time, and wherein the brain signal that indicates the patient is in the movement state results from a volitional patient movement or volitional intention to move. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A non-transitory computer-readable medium comprising instructions that cause a processor to:
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receive a bioelectrical brain signal; determine the bioelectrical brain signal indicates the patient is in a movement state, wherein the brain signal that indicates the patient is in the movement state results from a volitional patient movement or volitional intention to move; at a first time, control operation of a therapy device based on determining the bioelectrical brain signal indicates the patient is in a movement state; at a second time following the first time, determine whether the patient is in the movement state; and control the operation of the therapy device based on whether the patient is in the movement state at the second time following the first time.
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Specification