Dual Mode Cranial Nerve Stimulation for Migraine Therapy
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Solution Overview
Problem
Current implantable medical devices for electrical stimulation therapy face challenges in delivering effective treatment for chronic conditions like migraines and occipital neuralgia, as existing methods lack a dual mode stimulation approach that can inhibit the onset and reduce the effects of symptoms based on varying patient thresholds.
Innovation Solution
The implementation of a dual mode stimulation system that delivers prophylactic and abortive electrical stimulation to cranial nerves using distinct ranges of stimulation thresholds, with prophylactic stimulation inhibiting symptom onset and abortive stimulation reducing symptom effects, utilizing an implantable electrical stimulation generator and processor to control the delivery of therapy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single mode of electrical stimulation is used, then the device complexity is low, but the treatment efficacy for chronic conditions is insufficient
Solution Approach 1:
The patent divides the electrical stimulation therapy into two distinct modes: prophylactic stimulation and abortive stimulation. Each mode operates with different stimulation parameters and targets specific phases of symptom management. The system segments the treatment approach to address preventive needs and acute symptom relief separately, thereby improving overall treatment efficacy while maintaining manageable device complexity through modular control.
2Measurement precision
If prophylactic and abortive stimulation are delivered with the same parameters, then the device operation is simple, but the treatment precision is insufficient
Solution Approach 1:
The patent applies different stimulation parameters for different treatment phases: prophylactic stimulation uses lower intensity parameters to prevent symptom onset, while abortive stimulation uses higher intensity parameters to reduce acute symptoms. This local differentiation of stimulation quality based on treatment phase improves treatment precision. The system manages operational complexity through automated parameter selection based on the current treatment mode.
Solution Approach 2:
The system dynamically adjusts stimulation parameters based on the treatment mode (prophylactic vs. abortive) and patient response. The stimulation intensity, pulse width, and frequency are modified in real-time according to the phase of symptom management needed. This dynamic parameter adjustment improves treatment precision while the processor automatically manages the complexity of parameter control.
3Ease of operation
If stimulation thresholds are not differentiated, then the device complexity is low, but the patient comfort is reduced
Solution Approach 1:
The patent implements differentiated stimulation thresholds for prophylactic and abortive modes. Prophylactic stimulation operates at lower thresholds that are comfortable for continuous use, while abortive stimulation uses higher thresholds appropriate for short-duration acute treatment. This parameter differentiation significantly improves patient comfort. The system manages the resulting complexity through automated threshold selection based on the active treatment mode.
Data Source
AI summary
Prophylactic stimulation and abortive electrical stimulation are delivered to a cranial nerve, including, e.g. an occipital or trigeminal nerve to treat symptoms of various conditions, including, e.g. occipital neuralgia or migraines.