Finger Movement Timing Evaluation Using Electromagnetic Sensors
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Solution Overview
Problem
Conventional diagnosis methods for cervical spondylosis lack quantitative evaluation of finger motor function, making it difficult to determine appropriate treatment.
Innovation Solution
A living body inspection apparatus equipped with movement sensors, including a transmitter coil and receiver coils, that acquires and analyzes time-series waveform data to quantify finger bending and stretching movements, enabling comparative analysis of motor functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional eye observation method is used for finger motor function evaluation, then the diagnostic process is simple and easy to perform, but the evaluation lacks quantitative precision and accuracy
Solution Approach 1:
The patent replaces the mechanical/visual observation system with an electromagnetic sensing system. Movement sensors comprising coils detect finger movements through electromagnetic induction, converting mechanical finger movements into electrical signals for quantitative analysis. This substitution enables precise measurement of movement timing and characteristics that are imperceptible to human observation.
Solution Approach 2:
The patent introduces movement sensors as intermediary devices between the finger movements and the evaluation system. These sensors act as mediators that convert physical movements into measurable electrical signals, allowing indirect but precise measurement of motor function without requiring direct visual observation or complex imaging equipment.
2Measurement precision
If quantitative evaluation of finger movements is implemented, then diagnostic accuracy is improved, but the device complexity and measurement system become more complicated
Solution Approach 1:
The patent replaces complex visual assessment procedures with automated electromagnetic sensing. The movement sensors automatically detect and record timing of finger movements, eliminating the need for manual observation and subjective judgment. This substitution simplifies the measurement process while enhancing precision.
Solution Approach 2:
The measurement system performs self-service by automatically detecting, recording, and analyzing movement timing without requiring expert intervention. The sensors and analysis unit work autonomously to provide quantitative evaluation, reducing the skill level required for operation while maintaining high measurement accuracy.
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
The apparatus allows for accurate, quantitative evaluation of finger movement timings, facilitating effective comparison between healthy subjects and patients with cervical spondylosis, thereby improving diagnostic precision.
Implementation Method 1
a movement sensor including a transmitter coil for generating a magnetic field and a plurality of receiver coils for receiving the generated magnetic field from the transmitter coil
Data Source
AI summary
A living body inspection apparatus which quantitatively evaluates timings of movements (bending and stretching) of fingers. The apparatus includes: a movement sensor including a transmitter coil for generating a magnetic field and a plurality of receiver coils for receiving the generated magnetic field from the transmitter coil; analyzing means which analyzes time-series waveform data acquired from the movement sensor; and display means which displays a result of analysis made by the analyzing means. For comparison of waveform data, the analyzing means includes distance waveform generating means for generating distance waveforms corresponding to the waveform data, and standard point generating means for generating standard points based on standard distances in the distance waveforms.