Implantable seizure monitor
First Claim
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1. A method for detecting neurological events comprising:
- sensing brainwaves of a patient;
generating a signal indicative of the sensed brainwaves;
amplifying the signal in an amplifier, the amplifier having a gain adjustable to predetermine an amplitude of the signal that will place the amplifier in saturation; and
determining, by a processor, if a neurological event has occurred based on occurrences of saturation of the amplifier.
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Abstract
An implantable seizure monitor can include at least one sensing electrode and an electronics module configured to detect, record and/or log neurological events. For example, the electronics module can be configured to detect brainwaves indicative of seizures, such as, for example, epileptic seizures, and to create a log indicating when such seizures occur. The implantable seizure monitor can include a cushioning member made of a soft material and configured to be implantable between the epidermis and cranium of a patient.
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Citations
11 Claims
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1. A method for detecting neurological events comprising:
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sensing brainwaves of a patient; generating a signal indicative of the sensed brainwaves; amplifying the signal in an amplifier, the amplifier having a gain adjustable to predetermine an amplitude of the signal that will place the amplifier in saturation; and determining, by a processor, if a neurological event has occurred based on occurrences of saturation of the amplifier. - View Dependent Claims (2, 3, 4)
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5. A method for calibrating an implantable device including an adjustable gain amplifier, the method comprising:
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setting an initial gain of the amplifier; sensing brainwaves of a patient using the implantable device; generating a signal indicative of the sensed brainwaves using the implantable device; amplifying the signal in an amplifier, the amplifier having a gain adjustable to predetermine an amplitude of the signal that will place the amplifier in saturation; determining, by a processor, occurrences of saturation of the amplifier during normal brain activity; determining, by the processor, whether the occurrences of saturation of the amplifier during normal brain activity exceed a threshold; adjusting the gain of the amplifier if the occurrences of saturation of the amplifier during normal brain activity exceed the threshold; repeating determining, by the processor, occurrences of saturation of the amplifier during normal brain activity; determining, by the processor, whether the occurrences of saturation of the amplifier during normal brain activity exceed the threshold, and adjusting the gain, until the occurrences of saturation of the amplifier during normal brain activity do not exceed the threshold; and if the occurrences of saturation of the amplifier during normal brain activity do not exceed the threshold, determining, by the processor, if a neurological event has occurred based on occurrences of saturation of the amplifier. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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Specification