BRAIN SIGNAL TELEMETRY AND SEIZURE PREDICTION
First Claim
1. An apparatus comprising:
- an ambulatory intrinsic brain signal processor circuit, configured to be coupled to a plurality of electrodes, the signal processor circuit comprising;
a digital multiplexer circuit, configured to be coupled to the electrodes, and configured to multiplex brain signal data from different electrodes together into a multiplexed data stream;
an ambulatory transceiver circuit, configured to wirelessly communicate information to a remote transceiver, and configured to wirelessly receive user-programming information from the remote transceiver; and
a controller circuit, configured to permit a user to control;
which of the electrodes contribute data to the multiplexed data stream;
a data resolution of the electrodes that contribute data to the multiplexed data stream; and
whether data contributed by a particular electrode includes a user-selected one of at least one of;
(1) neural action potential data, from which neural field potential data has been reduced or removed;
(2) neural field potential data, from which neural action potential data has been reduced or removed; and
(3) both neural action potential and neural field potential data.
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Accused Products
Abstract
An ambulatory intrinsic brain signal processor circuit is coupled to a plurality of electrodes. The signal processor circuit can include a digital multiplexer circuit coupled to the electrodes to multiplex brain signal data from different electrodes together into a multiplexed data stream. An ambulatory transceiver circuit wirelessly communicates information to and from a remote transceiver. A controller circuit permits a user to control which of the electrodes contribute data, a data resolution, and whether the data includes one or both of neural action or local field potential data. Seizure prediction components and methods are also described.
65 Citations
29 Claims
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1. An apparatus comprising:
an ambulatory intrinsic brain signal processor circuit, configured to be coupled to a plurality of electrodes, the signal processor circuit comprising;
a digital multiplexer circuit, configured to be coupled to the electrodes, and configured to multiplex brain signal data from different electrodes together into a multiplexed data stream;
an ambulatory transceiver circuit, configured to wirelessly communicate information to a remote transceiver, and configured to wirelessly receive user-programming information from the remote transceiver; and
a controller circuit, configured to permit a user to control;
which of the electrodes contribute data to the multiplexed data stream;
a data resolution of the electrodes that contribute data to the multiplexed data stream; and
whether data contributed by a particular electrode includes a user-selected one of at least one of;
(1) neural action potential data, from which neural field potential data has been reduced or removed;
(2) neural field potential data, from which neural action potential data has been reduced or removed; and
(3) both neural action potential and neural field potential data.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus comprising:
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a plurality of electrode assemblies, each electrode assembly including;
at least one electrode, configured to be coupled to a brain of a subject;
a brain signal sense amplifier circuit, coupled to the electrode, and configured to sense an intrinsic brain signal and to output a resulting sensed brain signal that is indicative of the intrinsic brain signal;
a filter circuit, coupled to the sense amplifier circuit, the filter circuit including a user-programmable frequency filtering characteristic configured to allow a user to select between at least two of;
(1) passing neural action potential frequencies;
(2) passing neural field potential frequencies; and
(3) passing both neural action potential and neural field potential frequencies;
an analog-to-digital converter (“
ADC”
) circuit, coupled to the filter circuit, the ADC circuit configured to digitize brain signal information passed by the filter circuit, the digitizing occurring in close proximity to the electrode;
an ambulatory memory device, configured to store brain signal information;
an ambulatory signal processor circuit, coupled to the electrode assemblies, the signal processor circuit including;
a digital multiplexer circuit, coupled to the electrode assemblies, and configured to multiplex data from different electrode assemblies together into a multiplexed data stream;
a transceiver circuit, configured to communicate information to a remote transceiver; and
a controller circuit, configured to control the digital multiplexer to permit a user to control;
which electrodes contribute data to the multiplexed data stream;
a data resolution of each electrode contributing data to the multiplexed data stream;
whether a particular electrode'"'"'s data contribution to the multiplexed data stream is at least one of;
provided to the transmitter for communication to the remote receiver or provided to the ambulatory memory device for storage; and
whether data contributed by a particular electrode includes a user-selected one of;
(1) neural action potential data, from which neural field potential data has been reduced or removed;
(2) neural field potential data, from which neural action potential data has been reduced or removed; and
(3) both neural action potential and neural field potential data.
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18. An apparatus comprising:
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ambulatory means for acquiring brain signals at different locations of a subject'"'"'s brain; and
ambulatory means for receiving information from user input to control;
which locations contribute data to a monitored data stream;
a data resolution of the locations that contribute data to the monitored data stream; and
whether data contributed by a particular location includes a user-selected one of;
(1) neural action potential data, from which neural field potential data has been reduced or removed;
(2) neural field potential data, from which neural action potential data has been reduced or removed; and
(3) both neural action potential and neural field potential data.
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19. A method comprising:
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acquiring brain signals at different locations of an ambulatory subject'"'"'s brain;
receiving, at the ambulatory subject, information from user input to control;
which locations contribute data to a monitored data stream;
a data resolution of the locations that contribute data to the monitored data stream; and
whether data contributed by a particular location includes a user-selected one of;
(1) neural action potential data, from which neural field potential data has been reduced or removed;
(2) neural field potential data, from which neural action potential data has been reduced or removed; and
(3) both neural action potential and neural field potential data. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification