Thermal Neural Modulation via Activity-State Synchronized Blocking
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Solution Overview
Problem
Current methods for modulating neural activity in peripheral neural structures lack the ability to control conduction effectively based on activity states, leading to undesired effects such as numbness, discomfort, and interference with autonomic functions.
Innovation Solution
A method and system that use thermal stimuli to produce reversible conduction blocks in peripheral neural structures during specific activity states, allowing for controlled modulation of neural activity by distinguishing between different activity states and applying thermal blocking and reversing stimuli to block and unblock conduction accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous conduction block is applied to peripheral neural structures, then neural activity is effectively blocked, but numbness and discomfort occur
Solution Approach 1:
The patent applies periodic thermal stimuli to produce cyclical conduction blocks rather than continuous blocking. The system delivers thermal pulses at specific frequencies (e.g., 0.1-10 Hz) to create rhythmic blocking and unblocking of neural conduction, which maintains therapeutic effectiveness while reducing cumulative side effects like numbness and discomfort.
Solution Approach 2:
The system dynamically adjusts the conduction block state by switching between blocked and unblocked states based on detected activity states. The thermal stimulus parameters (temperature, duration, frequency) are dynamically modified to achieve optimal blocking during inactive states while allowing conduction during active states, thereby reducing harmful effects.
2Reliability
If thermal blocking stimulus is applied during all activity states, then conduction is reliably blocked, but autonomic functions are interfered with
Solution Approach 1:
The system dynamically adapts the conduction block application based on real-time detection of activity states. The control system modifies thermal stimulus delivery to block conduction during inactive states while preserving conduction during active states, including autonomic activities. This dynamic adaptation maintains autonomic function integrity while achieving reliable blocking when needed.
Solution Approach 2:
The system employs feedback mechanisms by detecting activity states (e.g., through EMG, ECG, or other physiological sensors) and using this information to control thermal stimulus delivery. The feedback loop ensures that conduction blocking is applied only when appropriate activity states are detected, preventing interference with essential autonomic functions.
3Reliability
If thermal stimuli are applied without activity state discrimination, then conduction block is achieved, but specificity and control are reduced
Solution Approach 1:
The system incorporates activity state detection and feedback control to determine when thermal blocking stimuli should be applied. Sensors detect physiological parameters (muscle activity, heart rate, etc.) that indicate specific activity states, and the control system uses this feedback to precisely control thermal stimulus delivery, achieving high specificity in neural modulation.
Solution Approach 2:
The system changes thermal stimulus parameters (temperature, duration, frequency, amplitude) based on detected activity states. Different parameter sets are applied for different activity states to optimize conduction blocking effectiveness while maintaining control specificity. This parameter adaptation enables precise neural modulation tailored to physiological conditions.
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 enables desired effects like modulation of immune or inflammatory responses while minimizing inconvenience and discomfort by synchronizing blocking stimuli with activity states, thereby improving the control and specificity of neural modulation.
Implementation Method 1
producing a reversible conduction block in a peripheral neural structure of a subject with a thermal stimulus
Data Source
AI summary
Methods and related systems for modulating neural activity by blocking conduction in peripheral neural structures with thermal stimuli are disclosed. Methods and systems for reversing effects of thermal blocking stimuli and/or for producing substantially permanent conduction block are also disclosed.