Pain Measurement Device Using Individual EEG Baseline Normalization
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Solution Overview
Problem
Conventional pain measurement techniques fail to accurately measure pain due to individual differences in subjects, leading to subjective and imprecise evaluations.
Innovation Solution
A pain measurement device that determines a baseline stimulation amount based on the relationship between reported pain levels and applied stimulation, using brainwave data to objectively measure pain by comparing individual brainwave data with reference data, utilizing characteristic values like amplitude and latency to normalize pain levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional pain measurement techniques are used, then pain can be evaluated, but measurement precision is low due to individual differences in subjects
Solution Approach 1:
The patent changes the parameter of baseline normalization from fixed standard values to dynamic individual-specific baselines. By determining baseline stimulation amounts specific to each subject through preliminary measurements and adjusting reference brainwave data accordingly, the system adapts to individual differences in pain perception and brainwave characteristics, thereby improving measurement precision across diverse subjects
Solution Approach 2:
The patent implements preliminary action by conducting baseline measurements before actual pain assessment. The system first determines each subject's baseline stimulation amount and reference brainwave data through initial calibration sessions, then uses these pre-established individual-specific parameters for subsequent pain measurements, ensuring accurate comparison and evaluation
2Measurement precision
If multiple stimulations are applied to determine pain levels, then measurement accuracy improves, but subject discomfort increases
Solution Approach 1:
The patent applies partial action by using a simplified stimulation protocol that requires fewer stimulation levels than traditional methods. By leveraging individual baseline data and comparing brainwave responses to reference values, the system achieves accurate pain measurement with reduced stimulation applications, thereby minimizing subject discomfort while maintaining measurement precision
Solution Approach 2:
The patent uses copying by creating virtual reference brainwave data that represents baseline states. Instead of requiring multiple actual stimulations during measurement, the system compares real-time brainwave responses against pre-established reference copies of individual baseline brainwave patterns, reducing the need for repeated physical stimulations
Data Source
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AI summary
This pain measurement device (10) for measuring pain experienced by a subject (99) is provided with a determination unit (12) for determining a reference stimulation intensity corresponding to reference pain of the subject (99), on the basis of a relationship between pain levels reported by the subject (99) and stimulation intensities applied to the subject (99), and a measurement unit (13) which compares electroencephalographic data measured from the subject (99) and reference electroencephalographic data corresponding to the reference stimulation intensity to measure pain experienced by the subject (99) when the electroencephalographic data is measured.