Non-invasive Vagus Nerve Stimulation with Motion Feedback
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Solution Overview
Problem
Self-administration of non-invasive vagus nerve stimulation for treating medical conditions like migraine headaches poses challenges such as ensuring correct nerve stimulation side, minimizing stimulator movement, documenting amplitude adjustments, and controlling energy delivery during sessions, especially without a healthcare professional's presence.
Innovation Solution
A system comprising a dual-electrode stimulator housing applied to the neck with a docking station for charging and data transmission, allowing for wireless communication with a patient interface device to manage stimulation parameters, ensure correct nerve stimulation, and monitor session effectiveness, including features like motion minimization and energy control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If non-invasive vagus nerve stimulation is used for self-treatment, then patient autonomy and convenience are improved, but reliability of correct nerve stimulation and safety control deteriorate
Solution Approach 1:
The system incorporates motion sensors that continuously monitor stimulator position and provide feedback to the control circuitry. When movement exceeds predetermined thresholds, the system automatically adjusts or terminates stimulation to prevent incorrect nerve targeting, thereby maintaining reliability while enabling self-treatment
Solution Approach 2:
The device enables patients to independently administer therapy through automated safety features including motion detection, energy delivery control, and side-effect monitoring. The system self-regulates stimulation parameters based on detected movement, eliminating the need for continuous healthcare professional oversight
2Ease of operation
If wireless communication with mobile device is implemented, then ease of use and patient autonomy are improved, but device complexity increases
Solution Approach 1:
The mobile device serves multiple functions: it acts as a wireless communication interface for parameter adjustment, a data storage unit for treatment records, a motion analysis processor, and an energy delivery controller. This consolidates complexity into a single universal device rather than adding separate specialized components
3Reliability
If motion detection and minimization features are added, then reliability of nerve stimulation is improved, but device complexity and energy consumption increase
Solution Approach 1:
The motion detection system operates periodically rather than continuously, sampling stimulator position at predetermined intervals during treatment sessions. This reduces energy consumption while maintaining sufficient monitoring accuracy to detect significant movements that would affect nerve stimulation reliability
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
Enables safe and effective self-treatment of migraine headaches by ensuring precise vagus nerve stimulation, reducing side effects, and improving treatment outcomes through controlled energy delivery and data-driven adjustments.
Implementation Method 1
The energy impulses (and/or fields) that are used to treat those conditions comprise electrical and/or electromagnetic energy, delivered non-invasively to the patient, particularly to a vagus nerve of the patient
Implementation Method 2
The energy impulses (and/or fields) that are used to treat those conditions comprise electrical and/or electromagnetic energy, delivered non-invasively to the patient
Data Source
AI summary
Devices, systems and methods are disclosed that allow a patient to self-treat a medical condition, such as headache, by noninvasive stimulation of a nerve. A system comprises a stimulator having an interface configured to contact an outer skin surface of a patient and an energy source coupled to the interface. The energy source transmits an electrical impulse through the interface transcutaneously through the outer skin surface of the patient to a nerve of the patient such that the nerve is modulated. The system further comprises a mobile device coupled to the stimulator to transmit data to the stimulator. The data includes a therapy regimen to reduce one or more symptoms of a headache in the patient.