Systems for monitoring brain activity and patient advisory device
First Claim
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1. A system for monitoring a patient'"'"'s brain activity, the system comprising:
- an electrode for detecting physiological signals from the patient;
a communication assembly coupled to the electrode, the communication assembly configured to wirelessly transmit a data signal that is encoded with data that is indicative of the detected physiological signals; and
an external patient advisory device configured to receive the data signal from the communication assembly, the patient advisory device comprising;
a processing assembly comprising one or more brain state algorithms that process the data signal to estimate the patient'"'"'s brain state;
a brain state indicator configured to provide the estimated brain state, wherein the brain state indicator indicates;
when the estimated brain state is a contra-ictal brain state comprising a protected state in which the patient has a risk of transitioning from a non-ictal state to an ictal state within an upcoming time period below a first risk level; and
when the estimated brain state is a pro-ictal brain state comprising a prediction state in which the patient has a risk of transitioning from a non-ictal state to an ictal state within an upcoming time period above a second risk level, wherein the second risk level is higher than the first risk level; and
an output assembly comprising a first indicator that provides an indication of a status of the patient advisory device, a second indicator that provides an indication of a status of the communication assembly, and a failure alert indicator that provides an indication that a failure has occurred with the patient advisory device or the communication assembly.
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Abstract
A patient advisory device (“PAD”) and its methods of use. The PAD may be configured to alert the patient about an estimated brain state of the patient. In preferred embodiments, the PAD is adapted to alert the patient of the patient'"'"'s brain state, which corresponds to the patient'"'"'s propensity of transitioning into an ictal brain state, e.g., having a seizure. Based on the specific type of alert, the patient will be made aware whether they are highly unlikely to have a seizure for a given period of time, an elevated propensity of having a seizure, a seizure is occurring or imminent, or the patient'"'"'s brain state is unknown.
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Citations
19 Claims
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1. A system for monitoring a patient'"'"'s brain activity, the system comprising:
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an electrode for detecting physiological signals from the patient; a communication assembly coupled to the electrode, the communication assembly configured to wirelessly transmit a data signal that is encoded with data that is indicative of the detected physiological signals; and an external patient advisory device configured to receive the data signal from the communication assembly, the patient advisory device comprising; a processing assembly comprising one or more brain state algorithms that process the data signal to estimate the patient'"'"'s brain state; a brain state indicator configured to provide the estimated brain state, wherein the brain state indicator indicates; when the estimated brain state is a contra-ictal brain state comprising a protected state in which the patient has a risk of transitioning from a non-ictal state to an ictal state within an upcoming time period below a first risk level; and when the estimated brain state is a pro-ictal brain state comprising a prediction state in which the patient has a risk of transitioning from a non-ictal state to an ictal state within an upcoming time period above a second risk level, wherein the second risk level is higher than the first risk level; and an output assembly comprising a first indicator that provides an indication of a status of the patient advisory device, a second indicator that provides an indication of a status of the communication assembly, and a failure alert indicator that provides an indication that a failure has occurred with the patient advisory device or the communication assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A patient advisory device comprising:
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a housing; and a user interface on the housing comprising; a first portion providing system status information including a failure alert indicator that provides an indication that a failure has occurred with the patient advisory device; and a second portion comprising a brain state indicator that provides a substantially continuous indication of a patient'"'"'s propensity for a seizure, wherein the brain state indicator indicates; when an estimated brain state is a contra-ictal brain state comprising a protected state in which the patient has a risk of transitioning from a non-ictal state to an ictal state within an upcoming time period below a first risk level; and when the estimated brain state is a pro-ictal brain state comprising a prediction state in which the patient has a risk of transitioning from a non-ictal state to an ictal state within an upcoming time period above a second risk level, wherein the second risk level is higher than the first risk level. - View Dependent Claims (13)
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14. A patient advisory device comprising:
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a communication assembly configured to wirelessly receive a substantially continuously transmitted data signal that is encoded with brain activity data from a detection device disposed to detect a physiological signal from a patient; a digital signal processor that executes a plurality of brain activity algorithms on the substantially continuously transmitted data signal to estimate the patient'"'"'s brain state; a brain state indicator that is activated to report the estimated brain state estimated by at least one of the plurality of brain activity algorithms, wherein the brain state indicator indicates; when the estimated brain state is a contra-ictal brain state comprising a protected state in which the patient has a low risk of transitioning from a non-ictal state to an ictal state within an upcoming time period is below a first risk level; and when the estimated brain state is a pro-ictal brain state comprising a prediction state in which the patient has a risk of transitioning from a non-ictal state to an ictal state within an upcoming time period above a second risk level, wherein the second risk level is higher than the first risk level; a first status indicator that indicates an operational status of the patient advisory device; a second status indicator that indicates an operational status of the detection device; and a failure alert indicator that provides an indication that a failure has occurred with the patient advisory device or the detection device. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification