Ear-Cavity Magnetoresistance Sensing for Non-Invasive Brain Signals
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Solution Overview
Problem
Conventional methods for analyzing brain function, such as direct probing, are challenging, and non-invasive techniques like MRI provide limited spatial information, while electromagnetic signals from the ear canal can contain valuable information about brain and other organ functions.
Innovation Solution
Utilizing magnetoresistance sensors placed in or adjacent to the ear cavity to detect magnetic fields, which can measure magnetoencephalography and magnetocardiography signals, providing additional diagnostic information about brain and physiological functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If non-invasive imaging techniques like MRI are used to observe brain structure, then spatial aspects of the brain can be visualized, but direct probing of brain function remains challenging and additional diagnostic information is limited
Solution Approach 1:
The patent uses the ear canal as an intermediary access point to measure brain electromagnetic signals. Instead of directly probing the brain, magnetoresistance sensors are placed in the ear canal to detect magnetic fields generated by brain activity, providing functional information without direct brain invasion.
Solution Approach 2:
The patent replaces direct mechanical probing of the brain with electromagnetic field detection. Magnetoresistance sensors detect magnetic fields associated with brain function, substituting mechanical intervention with non-invasive electromagnetic measurement.
2Loss of information
If magnetoresistance sensors are placed in the ear canal to detect brain signals, then cognitive load and brain function information can be obtained, but sensor placement and signal isolation from other sources becomes more difficult
Solution Approach 1:
The patent exploits the unique local anatomical quality of the ear canal - its proximity to the brain and relative isolation from other electromagnetic sources. This specific location provides optimal conditions for detecting brain signals while minimizing interference from other organs.
Solution Approach 2:
The patent converts the potential harm of signal contamination from other sources into a benefit by using the ear canal's unique position. The ear canal naturally filters and directs electromagnetic fields, allowing brain signals to be detected while blocking or minimizing interference from other body parts.
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
Enhances medical diagnosis by offering insights into cognitive load, dementia, Alzheimer's disease, and athletic abilities through electromagnetic measurements from the ear cavity, replacing or complementing conventional devices.
Implementation Method 1
a first magnetoresistance sensor for detecting a magnetic field from a first ear cavity
Data Source
AI summary
A device including a magnetoresistance sensor for detecting a magnetic field from an ear cavity is disclosed. Methods for detecting a magnetic field from an ear cavity with a magnetoresistance sensor are also disclosed.