Wireless Recording and Stimulation of Brain Activity
First Claim
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1. An implantable medical device comprising:
- an array of electrodes for communicating with a subject'"'"'s brain;
control circuitry in communication with the electrodes;
wireless transmission circuitry, responsive to the control circuitry, for transmitting digital data corresponding to brain signals sensed by the electrodes outside a site of device implantation; and
wireless receiver circuitry for receiving wireless commands from outside the site of device implantation, the control circuitry responsively providing an electrical stimulus to the subject'"'"'s brain via the electrodes in accordance with the commands.
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Abstract
Subdural arrays transmit electrocorticogram recordings wirelessly, across the patient'"'"'s skull, allowing the craniotomy used for surgical placement of the arrays to be completely closed. In various embodiments, the arrays also respond to commands, applying signal patterns to the patient'"'"'s brain for diagnostic and treatment purposes.
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Citations
20 Claims
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1. An implantable medical device comprising:
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an array of electrodes for communicating with a subject'"'"'s brain; control circuitry in communication with the electrodes; wireless transmission circuitry, responsive to the control circuitry, for transmitting digital data corresponding to brain signals sensed by the electrodes outside a site of device implantation; and wireless receiver circuitry for receiving wireless commands from outside the site of device implantation, the control circuitry responsively providing an electrical stimulus to the subject'"'"'s brain via the electrodes in accordance with the commands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of brain monitoring and treatment, the method comprising the steps of:
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subdurally implanting a device comprising an array of electrodes for communicating with a patient'"'"'s brain; causing wireless transmission of digital data corresponding to brain signals sensed by the electrodes; and transmitting wireless commands to cause provision of an electrical stimulus to the patient'"'"'s brain via the electrodes in accordance with the commands. - View Dependent Claims (17)
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18. A method of monitoring brain signals, the method comprising the steps of:
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implanting at least one wireless array subdurally in a patient; maintaining the patient on a normal regimen of anti-seizure medication; and wirelessly measuring, via the wireless array, brain signals for a period of time sufficient to record adequate habitual seizure activity to localize pharmacologically intractable epileptogenic foci. - View Dependent Claims (19)
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20. A method of determining optimum stimulation parameters for suppressing epileptogenic seizures comprising:
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implanting at least one wireless array subdurally in a patient; maintaining the patient on a normal regimen of anti-seizure medication; and causing wireless transmission of digital data corresponding to brain signals sensed by the array; identifying, based on the transmitted digital data, the onset of habitual seizures; and wirelessly causing the array to apply electrical stimulation signals at one or more electrode sites thereon, the sites being selected and magnitudes of the stimulation signals being determined so as to treat the seizures.
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Specification