Dynamic EEG-Guided Brain Stimulation for Alzheimer's
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Solution Overview
Problem
Current neurological treatment methods, such as gamma band stimulation, are static and do not account for the dynamic physical states of a patient's brain, limiting their efficacy in conditions like Alzheimer's disease.
Innovation Solution
A stimulation apparatus with an electrode array and emitter array that dynamically measures EEG signals and emits radiation based on these measurements, adjusting parameters like frequency, duty cycle, and spatial control to provide personalized and adaptive treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static gamma band stimulation is used, then the treatment can be applied continuously, but it does not account for dynamic brain states, reducing treatment efficacy
Solution Approach 1:
The patent implements dynamic stimulation by continuously monitoring EEG signals and adjusting stimulation parameters in real-time based on detected brain states. The system transitions from static gamma band stimulation to a dynamic closed-loop system that adapts to changing brain states, thereby improving treatment efficacy while maintaining continuous application.
Solution Approach 2:
The patent employs feedback mechanisms where EEG signals are continuously recorded and analyzed to detect brain states such as sleep-wake transitions. The stimulation parameters are then adjusted based on this feedback, creating a closed-loop system that adapts to the patient's dynamic brain states and improves treatment reliability.
2Reliability
If continuous stimulation is applied, then the treatment coverage is comprehensive, but it may cause tissue heating and increased energy consumption
Solution Approach 1:
The patent utilizes periodic action by applying stimulation in pulsed sequences rather than continuous emission. The system delivers multiple pulses within stimulation epochs separated by inter-epoch intervals, allowing tissue cooling between pulses while maintaining comprehensive treatment coverage through repeated stimulation cycles.
Solution Approach 2:
The patent achieves continuous useful action through closed-loop adaptation where stimulation parameters are dynamically adjusted based on real-time EEG monitoring. The system maintains treatment coverage by continuously adapting to brain states while managing thermal load through parameter optimization and pulsed delivery sequences.
3Length of stationary object
If high power stimulation is used, then the penetration depth increases, but it causes excessive heating of tissues
Solution Approach 1:
The patent applies periodic pulsed stimulation where high-power pulses are delivered in sequences with sufficient inter-epoch intervals for tissue cooling. This approach achieves adequate penetration depth during each pulse while preventing excessive heating through the periodic interruption of energy delivery.
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting stimulation intensity, pulse width, and frequency based on real-time EEG feedback and thermal considerations. The system optimizes the balance between penetration depth and thermal load by modifying these parameters according to the patient's physiological state and accumulated thermal energy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances neurological functioning and increases brain detoxification by providing a tailored and dynamic treatment that aligns with the patient's real-time brain state, potentially improving cognitive outcomes.
Implementation Method 1
measuring electroencephalography (EEG) signals of the patient with the electrode array
Implementation Method 2
emitting radiation into the patient's brain from the emitter array based on the measured EEG signals
Data Source
AI summary
A method of treating a neurological disorder and/or disease includes positioning a stimulation apparatus on a patient. The stimulation apparatus includes an electrode array having a plurality of electrodes and an emitter array having a plurality of emitters. The method further includes measuring electroencephalography (EEG) signals of the patient with the electrode array. The method further includes emitting radiation into the patient's brain from the emitter array based on the measured EEG signals in order to treat the neurological disorder and/or disease.