Frontal Electrode Sleep Stage Determination System
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Solution Overview
Problem
Traditional methods for sleep stage determination require patients to be in a laboratory setting, which can induce abnormal sleep patterns and are cumbersome, lacking the convenience and accuracy of home-based monitoring.
Innovation Solution
A system using frontal electrodes positioned on the forehead, including a sensing unit with multiple electrodes and a processing unit that processes EEG, EOG, and EMG signals based on stored rules to determine sleep stages, allowing for home-based sleep stage monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional laboratory setting with multiple electrodes is used for sleep stage determination, then measurement precision is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent extracts only the essential frontal electrodes (Fp1, Fp2, Fz) from the complete 10-20 system, eliminating the need for numerous other electrodes while maintaining sufficient accuracy for sleep stage determination. This selective extraction reduces device complexity and ease of operation while preserving measurement precision for the specific application.
Solution Approach 2:
The patent applies partial action by using only a subset of the full electrode system (frontal electrodes only) rather than the complete 10-20 system. This partial approach provides sufficient measurement precision for sleep staging while significantly reducing device complexity and ease of operation requirements.
2Measurement precision
If laboratory setting with multiple electrodes is used, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent removes the cumbersome requirement for multiple electrode placements and laboratory setting, extracting only the essential frontal electrode measurements needed for sleep stage determination. This simplifies ease of operation and improves patient comfort while maintaining adequate measurement precision.
Solution Approach 2:
The system enables self-service monitoring at home without requiring professional technicians to place and monitor multiple electrodes. The simplified frontal electrode configuration allows patients to perform sleep monitoring independently, significantly improving ease of operation and patient comfort.
3Measurement precision
If laboratory setting is used for sleep testing, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent extracts the essential sleep monitoring function into a simplified system that can be performed at home, eliminating the time-consuming laboratory setting and professional technician involvement. This reduces the time required for sleep monitoring while maintaining sufficient measurement precision through the frontal electrode configuration.
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 accurate and convenient sleep stage determination outside a laboratory setting, improving patient comfort and reducing abnormal sleep pattern induction, while maintaining high monitoring accuracy.
Implementation Method 1
The sensing unit is positioned over a forehead area of a patient and has first, second and third electrodes for positioning at locations on or adjacent the forehead area for detecting electrical potentials of a human head
Data Source
AI summary
The described embodiments relate generally to methods, systems and devices for sleep stage determination using frontal electrodes. Certain embodiments relate to a system for sleep stage determination comprising a sensing unit and a processing unit. The sensing unit is positioned over a forehead area of a patient and has first, second and third electrodes for positioning at locations on or adjacent the forehead area for detecting electrical potentials of a human head. The processing unit is coupled to the sensing unit for receiving biological signals corresponding to the detected electrical potentials and processing the biological signals to determine a sleep stage of the patient. The processing of the biological signals is based on a plurality of rules.