Adaptive Magnetic Stimulation Therapy for Neurological Disorders
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Solution Overview
Problem
Current neurostimulation techniques face challenges in effectively treating neurological disorders like epilepsy due to side-effects from continuous stimulation, interference with endogenous brain activity, and the need for tailored approaches to address different symptoms and mechanisms underlying disorders.
Innovation Solution
The development of roving stimulation methods that dynamically adjust parameters such as frequency and pulse repetition rates to minimize interference with endogenous activity, alternate between different stimulation signals, and use partial signals to create therapeutic vector signals, reducing side-effects and improving treatment efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous neurostimulation is provided to treat neurological disorders, then therapeutic effect is improved, but side-effects increase due to interference with endogenous brain activity
Solution Approach 1:
The patent implements periodic action by alternating between stimulation and non-stimulation periods, and by using periodic modulation of stimulation parameters. The system provides stimulation in a non-continuous manner, switching between different stimulation signals and parameter sets at defined intervals, thereby maintaining therapeutic effect while reducing cumulative interference with endogenous brain activity patterns
Solution Approach 2:
The patent applies dynamics by making stimulation parameters variable rather than fixed. The system dynamically adjusts stimulation parameters including frequency, amplitude, and pulse width based on predetermined schedules and response to endogenous activity. Multiple parameter sets are defined and switched between, allowing the stimulation regime to adapt over time and reducing side-effects associated with any single continuous parameter configuration
2Ease of operation
If stimulation parameters are fixed to provide consistent therapy, then treatment simplicity is improved, but adaptability to different symptoms and mechanisms deteriorates
Solution Approach 1:
The patent implements parameter changes by defining multiple sets of stimulation parameters (frequencies, amplitudes, pulse widths) that can be switched between based on treatment needs. The system automatically varies parameters such as pulse repetition rate and waveform characteristics according to predetermined schedules and detected endogenous activity, enabling adaptation to different symptoms and mechanisms without requiring complex manual reconfiguration
Solution Approach 2:
The patent applies universality by designing a stimulation system that can deliver multiple types of stimulation signals (electrical, magnetic, acoustic, optical) and multiple parameter configurations through a single integrated platform. The system is capable of providing both continuous and periodic stimulation, and can adapt its behavior based on detected physiological states, making it versatile for treating different symptoms and mechanisms while maintaining operational simplicity
3Reliability
If stimulation frequency is increased to improve therapeutic effect, then treatment efficacy is improved, but interference with endogenous brain activity increases
Solution Approach 1:
The patent applies periodic action by implementing alternating periods of high-frequency and low-frequency or non-stimulation phases. The system uses periodic modulation where stimulation frequency varies over time according to predetermined patterns, allowing high-frequency stimulation to be delivered in controlled bursts that achieve therapeutic effect while periodic interruptions reduce cumulative interference with endogenous brain oscillations
Solution Approach 2:
The patent implements dynamics by making stimulation frequency variable rather than fixed at a constant high value. The system dynamically adjusts frequency based on detected endogenous activity patterns and predetermined schedules, delivering high frequency when therapeutic benefit is maximized and reducing frequency when interference risk increases, thereby optimizing the balance between efficacy and minimizing harmful interference
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 reduces the risk of ineffective stimulation, minimizes side-effects, and enhances treatment efficacy by dynamically adjusting stimulation parameters to better match the brain's activity, thereby improving therapeutic outcomes for neurological disorders.
Implementation Method 1
The stimulators can induce electrical fields, gradients, and currents in the brain or body of a patient
Data Source
AI summary
Stimulation treatment of medical disorders use stimulation parameters that provide stimulation of a target site directly or create partial stimulation signals that combine into vector signals that stimulate a target site. Stimulation signals have characteristics such as frequency, timing, temporal content that is adjusted for the person being treated. Signals are designed with advantageous characteristics to influence target tissue in an intended manner and avoid producing unwanted side-effects. Stimulation signals are designed to match or avoid internal/endogenous activity (e.g., brain patterns and rhythms) of a patient. Methods for choosing, creating and partial signals are disclosed. Tissue modulation may be accomplished with electrical and/or magnetic stimulation, such as repetitive transcranial magnetic stimulation.