Automated Electrode Array for Neurostimulation Impedance Scanning
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Solution Overview
Problem
Current methods for transcutaneous neurostimulation are time-consuming and costly due to the manual process of scanning and treating low impedance points, which requires repeated scanning and treatment, and do not effectively address the optimal treatment of pain or ailments by focusing electrical energy on specific impedance points.
Innovation Solution
An automated protocol using an array of electrodes with alternating polarity, where the spacing is uniform and the relative area of the treating electrode to surrounding electrodes is between 1.2:1 to 5:1, allowing the array to self-select and direct treatment energy to optimal sites based on impedance readings, thereby automating both scanning and treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual scanning and treatment of low impedance points is performed, then treatment can be applied to identified points, but the process is time-consuming and requires repeated scanning and treatment cycles
Solution Approach 1:
The patent combines the scanning function and treatment function into a single integrated electrode array device. The same electrodes used for scanning impedance are used for delivering treatment energy, eliminating the need for separate scanning and treatment devices and procedures. This merging allows automated continuous operation without manual intervention between scanning and treatment phases.
Solution Approach 2:
The electrode array automatically identifies low impedance points through impedance measurements and self-selects which points to treat based on the measured impedance values. The system performs automated scanning, automatic identification of treatment targets, and automated energy delivery without requiring manual operation. This self-service capability eliminates repeated manual scanning and treatment cycles.
2Extent of automation
If an array of electrodes with alternating polarity and specific area ratios is used, then the array can self-select and direct treatment energy to optimal sites, but the device complexity increases
Solution Approach 1:
The patent employs electrodes with different areas (large area electrodes and small area electrodes) in specific spatial arrangements to create local variations in electrical field distribution. This local quality differentiation allows the system to automatically focus energy at specific low impedance points while maintaining overall system simplicity through standardized geometric patterns.
Solution Approach 2:
The electrode array uses asymmetric electrode configurations with alternating polarity and different electrode areas (e.g., 1.2:1 to 5:1 area ratios) to create directional electrical field patterns. This asymmetry enables the system to naturally direct current flow toward optimal treatment sites based on impedance characteristics, reducing the need for complex control algorithms.
3Reliability
If treatment energy is focused on specific impedance points identified by the array, then treatment efficacy is improved, but the relative electrode area and spacing must be precisely controlled
Solution Approach 1:
The patent specifies optimal parameter ranges for electrode geometry (area ratios between 1.2:1 to 5:1, spacing between 0.20 to 0.40 inches) that create favorable electrical field distributions for automated impedance-based treatment selection. These parameter specifications balance manufacturing tolerances with treatment reliability, allowing sufficient variation while maintaining effective energy focusing at low impedance points.
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 efficient and effective treatment by automatically identifying and treating optimal impedance points, reducing manual intervention and improving treatment outcomes by focusing energy on sites that may not be directly within the area of pain, thereby enhancing treatment efficacy.
Implementation Method 1
An objective of transcutaneous neurostimulation is to focus an adequate electrical energy concentration at a relatively small, preferred treatment location on the skin. The preferred treatment locations are typically locations such as nerve branches, trigger points, and acupuncture points, and are evidenced as points of lower relative impedance.
Implementation Method 2
An array of electrodes with alternating polarity is provided, and the array is configured to self-select and direct treatment energy to a preferred treatment location based on impedance readings.
Data Source
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AI summary
A method and system provide an automated protocol for assessing and treating a neurostimulation treatment area. The assessment involves identifying a number of relative low impedance points among an array of points of a treatment area array associated with a physiological region. A certain number of the identified points are treated. The array area is reassessed. Then, a certain number of the previously treated points are treated again. These steps are repeated a predetermined number of times and/or until a predetermined number of treatment points remains.