Multi-bio-signal Geriatric Cognitive Impairment Diagnosis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing geriatric cognitive impairment diagnosis technologies are limited by their high cost, invasiveness, and inability to comprehensively assess the nervous system, relying on single bio-signals such as brain waves, heart rate variability, or gait analysis.
Innovation Solution
A multi-bio-signal-based diagnosis method and device that simultaneously evaluates brain waves, heart rate variability, and gait measurement values using a cognitive impairment diagnosis model constructed with a logistic function to determine the probability of geriatric cognitive impairment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If imaging diagnostic equipment is used for geriatric cognitive impairment diagnosis, then diagnostic accuracy is improved, but cost and invasiveness increase
Solution Approach 1:
The patent uses bio-signal copies (EEG, ECG, EMG signals) as substitutes for direct imaging diagnostic procedures. Instead of using expensive and invasive imaging equipment, the system collects electrical signal copies from the body that reflect nervous system function, thereby achieving diagnostic purposes with lower cost and invasiveness while maintaining diagnostic accuracy through multi-signal integration analysis
2Device complexity
If single bio-signal analysis is used for diagnosis, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent merges multiple bio-signal sources (central nervous system EEG signals, autonomic nervous system ECG signals, and motor function EMG signals) into a unified diagnostic system. By combining these different signal types and analyzing them together through integrated algorithms, the system achieves comprehensive nervous system assessment and improved diagnostic accuracy that surpasses single-signal analysis
3Device complexity
If questionnaire-based psychological tests are used, then cost is reduced, but measurement precision deteriorates due to limited scope
Solution Approach 1:
The patent replaces the mechanical/questionnaire-based psychological testing system with a physiological signal-based diagnostic system. Instead of relying on subjective patient responses to questions, the system objectively measures and analyzes electrical bio-signals from the nervous system, thereby eliminating the limitations of questionnaire methods while maintaining cost-effectiveness through the use of standard medical equipment
Data Source
AI summary
A multi-bio-signal-based geriatric cognitive impairment diagnosis method includes collecting multiple bio-signals including brain waves, heart rate variability, and gait measurement values of a subject during walking; calculating a probability value of a geriatric cognitive impairment disease by using a cognitive impairment diagnosis model, based on the multiple bio-signals; and determining whether there is a geriatric cognitive impairment disease, based on a calculated probability value, wherein the cognitive impairment diagnosis model is a model constructed by applying brain waves, heart rate variability, and gait measurement values of a patient with a geriatric cognitive impairment disease to a logistic function.