Motor Function Analysis Apparatus Calibration Simplification
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Solution Overview
Problem
Conventional motor function analyzing apparatuses using magnetic sensors for evaluating finger tapping motions in patients with movement disorders, such as Parkinson's disease, face challenges with inaccurate calibration measurements leading to errors in distance calculations and require multiple calibration steps, making the process cumbersome and less objective.
Innovation Solution
A motor function analyzing apparatus that includes a movement-waveform generating unit with a magnetic field generator and detector, a calibration-point measuring unit, and a conversion-formula generating unit to simplify calibration and improve precision by using unique voltage measurements for each apparatus and subject, reducing the number of calibration points needed and enhancing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three calibration measurements are performed before each finger tapping motion measurement, then the conversion formula can be derived, but the calibration process becomes cumbersome and time-consuming
Solution Approach 1:
The patent performs one calibration measurement before each finger tapping motion measurement to derive the conversion formula in advance, rather than requiring three calibration measurements. This preliminary calibration action reduces the number of repeated measurements needed while maintaining accuracy.
2Measurement precision
If three calibration measurements are performed, then a conversion formula can be derived, but the management of instruments and calibration measurement becomes bothersome
Solution Approach 1:
The patent performs one calibration measurement before each finger tapping motion measurement to derive the conversion formula in advance, rather than requiring three calibration measurements. This preliminary calibration action reduces the number of repeated measurements needed while maintaining accuracy.
3Measurement precision
If conventional calibration measurement is used, then distance values can be calculated, but errors in calibration measurements lead to large errors in calculated distance values
Solution Approach 1:
The patent uses the calibration measurement data to derive a conversion formula that converts voltage values to distance values. This feedback mechanism allows the system to adjust and correct measurements based on the derived formula, improving reliability by reducing error propagation.
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 simplifies the calibration process, reduces errors in distance calculations, and provides more objective and precise evaluations of motor functions with fewer calibration steps, improving the reliability of motor function assessments.
Implementation Method 1
a magnetic field generator that generates a magnetic field, the magnetic field generator being attached to predetermined two locations of a biological object... and a magnetic field detector that detects the magnetic field
Data Source
AI summary
It is an object of the present invention to provide a motor function analyzing apparatus which simplifies a calibration measurement necessary before measuring a finger tapping motion, and which is capable of evaluating a motor function highly precisely. The present invention provides a motor function analyzing apparatus which simplifies a calibration measurement necessary before measuring a finger tapping motion, and which is capable of evaluating a motor function highly precisely by using a calibration point unique to each apparatus and a calibration point unique to each subject.