Physiological Midline Detection for Spinal Cord Stimulation
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Solution Overview
Problem
Current spinal cord stimulation therapies face challenges in determining effective stimulation parameters due to uncertainties in electrode placement and the anatomical alignment of neuroanatomy, which limits the customization and effectiveness of treatment for chronic pain management.
Innovation Solution
A technique is developed to identify and present the location of a physiological midline using peripheral electrodes in conjunction with spinal electrodes, determining the imbalance in electrical activity to accurately position the stimulation site, allowing for more precise customization of spinal cord stimulation therapy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional spinal cord stimulation therapy is used without physiological midline identification, then the treatment procedure is simpler and faster, but the precision of stimulation parameter determination is insufficient due to uncertainties in electrode placement and anatomical alignment
Solution Approach 1:
The system performs preliminary identification of the physiological midline position before initiating the main stimulation therapy. By first determining the patient-specific physiological midline using peripheral electrodes and signal processing, the system establishes an accurate reference framework that guides subsequent electrode placement and stimulation parameter optimization, thereby improving precision without complicating the overall treatment workflow
Solution Approach 2:
The system introduces an intermediary step involving peripheral electrodes and signal processing algorithms that mediate between the physical electrode placement and the target physiological structures. This intermediary process of physiological midline identification acts as a bridge, translating observable electrical signals into accurate spatial information that guides stimulation parameter determination
2Manufacturing precision
If physiological midline identification is performed using peripheral electrodes and signal processing, then the accuracy of electrode placement and stimulation site positioning is improved, but the time required for treatment evaluation and parameter customization increases
Solution Approach 1:
The system employs self-service principles by using the patient's own electrical signals (EMG, EOG, ECG) as the measurement medium. The peripheral electrodes capture the patient's natural physiological signals, which are then processed to identify the physiological midline. This self-service approach eliminates the need for complex external imaging or anatomical models, achieving high accuracy while maintaining relatively short evaluation time
Solution Approach 2:
The system replaces traditional mechanical or anatomical-based electrode placement methods with an electrical signal-processing approach. Instead of relying on anatomical landmarks or mechanical positioning techniques, the system uses electrical signals from peripheral electrodes to computationally determine the physiological midline, achieving superior precision with minimal time investment
3Reliability
If stimulation parameters are customized based on physiological midline location, then the effectiveness of pain management therapy is enhanced, but the complexity of determining optimal stimulation parameters increases
Solution Approach 1:
The system applies local quality by tailoring stimulation parameters specifically to the patient's unique physiological midline location rather than using generic anatomical references. By determining the actual physiological midline position and using this information to customize stimulation parameters for specific electrode locations, the system achieves enhanced therapeutic effectiveness while managing complexity through patient-specific customization
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 more precise determination of stimulation parameters, improving the effectiveness of spinal cord stimulation therapy by aligning the stimulation site with the physiological midline, thereby enhancing pain management outcomes.
Implementation Method 1
A technique is developed to identify and present the location of a physiological midline using peripheral electrodes in conjunction with spinal electrodes, determining the imbalance in electrical activity
Data Source
AI summary
Techniques for determining the location of a physiological midline are disclosed. A first technique evaluates the response to stimulation of spinal electrodes at peripheral electrodes on different sides of the body. In this technique, a spinal electrode's position relative to a physiological midline is determined based on a relationship between responses to its stimulation observed on different sides of the body. A second technique evaluates the response of spinal electrodes to stimulation of peripheral electrodes on different sides of the body. In this technique, a spinal electrode's position relative to a physiological midline is determined based on the different responses that it observes to stimulation on different sides of the body.