Brain Signal-Guided Implantable Medical Device Configuration
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Solution Overview
Problem
Conventional medical device implantation and configuration for electrical stimulation therapy rely heavily on patient feedback, which can be inaccurate and time-consuming, making it challenging to achieve precise electrode placement and stimulation parameter selection.
Innovation Solution
The use of brain signal sensing to facilitate the configuration of medical devices, allowing for real-time monitoring and adjustment of electrical stimulation or drug delivery based on sensed brain signals, either through external or implantable devices, to improve efficacy and precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If patient feedback is used to configure electrical stimulation therapy, then the device can be operated with simple feedback mechanisms, but the accuracy and reliability of electrode placement and parameter selection deteriorates
Solution Approach 1:
The patent implements a closed-loop feedback system where brain signals are continuously monitored and used to automatically adjust stimulation parameters. The system detects brain responses to stimulation and uses this feedback to optimize electrode placement and parameter selection, resolving the contradiction by providing both automatic precision and operational simplicity through integrated control.
Solution Approach 2:
The system performs self-optimization by automatically detecting brain signals and adjusting stimulation parameters without requiring manual intervention. The device serves itself by using its own output (stimulation) to generate feedback signals that automatically tune the therapy, eliminating the need for complex manual configuration while maintaining high accuracy.
2Ease of operation
If patient feedback is used to configure electrical stimulation therapy, then the operation remains manual, but the time required for configuration increases
Solution Approach 1:
The system performs preliminary configuration automatically during the implantation procedure by testing multiple electrode combinations and pre-optimizing parameters before the device is fully implanted. This preliminary action eliminates the need for time-consuming manual configuration afterward, while the device remains operable through simple user interface for later adjustments.
Solution Approach 2:
Real-time brain signal feedback during the implantation procedure enables automatic parameter optimization while the device is still accessible. The system uses immediate feedback from brain responses to rapidly converge on optimal settings, dramatically reducing configuration time compared to traditional manual trial-and-error methods.
3Device complexity
If manual parameter selection is used, then the device structure remains simple, but the reliability of therapy efficacy decreases
Solution Approach 1:
The patent incorporates brain signal sensing and automatic parameter adjustment feedback loops that significantly improve therapy efficacy reliability. The system continuously monitors brain responses and automatically optimizes stimulation parameters, ensuring consistent therapeutic effectiveness while adding only moderate complexity through integrated sensing and control circuitry.
Solution Approach 2:
The system replaces manual mechanical parameter adjustment with automated electronic control based on brain signal analysis. This substitution uses electronic sensing and digital signal processing to achieve more reliable and precise parameter optimization than manual methods, while the added complexity is managed through standardized electronic components and algorithms.
Data Source
AI summary
The invention is directed to techniques and systems in which external brain monitoring is used to facilitate implantation and configuration of an implantable medical device. The techniques may create an open loop or closed loop system in which brain signals quantify the efficacy of electrical logical stimulation (or drug therapy via an implantable drug pump) at locations outside of the brain. The techniques may be used to improve placement of leads and electrodes during an implantation procedure, and/or to select or adjust stimulation parameters either during the implantation procedure or possibly following implantation of an implantable medical device. The described techniques have applications for the alleviation of pain, but may find other applications where EEG signals can quantify the efficacy of treatment via an implantable medical device.