Portable Optical Brain Measurement Device Segmentation
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Solution Overview
Problem
Conventional optical measurement devices for brain function analysis are cumbersome and impractical for active subjects, requiring extensive setup time and being unsuitable for home use due to their size and complexity, making it difficult to measure chronological changes in brain blood flow during exercises like rehabilitation.
Innovation Solution
A dual-device system comprising a main optical measurement device with multiple probes for precise measurements and a portable device with fewer probes for active subjects, allowing for real-time data communication and enabling subjects to self-attach the portable device, which is compact and easy to use, even at home.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional optical measurement device with multiple probes is used, then measurement precision is improved, but device complexity increases and portability deteriorates
Solution Approach 1:
The system is divided into two distinct devices: a main optical measurement device with multiple probes for high-precision measurements, and a portable device with fewer probes for simplified use. This segmentation allows each device to be optimized for its specific purpose, resolving the contradiction between precision and complexity.
Solution Approach 2:
The essential measurement function is extracted from the complex main device and implemented in a simplified portable version. The portable device contains only the critical components needed for basic measurement, eliminating unnecessary complexity while maintaining core functionality.
2Measurement precision
If a conventional optical measurement device with multiple probes is used, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
By segmenting the system into main and portable devices, the portable version provides ease of operation for active subjects while the main device maintains measurement precision for stationary measurements, allowing users to choose based on their needs.
Solution Approach 2:
The portable device is designed to be easily attached and detached by subjects themselves without requiring assistance from operators, enabling independent use during rehabilitation exercises and improving ease of operation.
3Measurement precision
If a conventional optical measurement device is used, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The segmentation into main and portable devices allows the portable version to be quickly deployed for measurements during exercises, reducing setup time while the main device remains available for comprehensive precision measurements when time is not constrained.
4Measurement precision
If a conventional optical measurement device is used, then measurement precision is improved, but adaptability deteriorates
Solution Approach 1:
The two-device architecture provides adaptability by allowing selection of the appropriate device based on the measurement context: portable device for active rehabilitation exercises and main device for stationary comprehensive measurements, thus resolving the contradiction between precision and adaptability.
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 precise measurement of brain activity during rehabilitation exercises with reduced setup time and increased portability, allowing for continuous monitoring without the need for extensive infrastructure, facilitating more efficient and convenient data collection.
Implementation Method 1
light sending means for irradiating a subject with light; light receiving means for receiving light emitted from the subject
Data Source
AI summary
An optical measurement system has main and portable optical measurement devices. The main optical measurement device includes Ath first light sending devices and Bth first light receiving devices. The portable optical measurement device includes Cth second light sending devices for illuminating a subject, Dth second light receiving devices receiving light from the subject, a holder worn on a head of the subject and having through holes therein, a control unit acquiring measurement data relating to a brain activity while controlling the second light sending and receiving devices, and a communication device communicating with the main optical measurement device. (C+D)<(A+B) is satisfied. The communication device of the portable optical measurement device transmits the measurement data acquired by the control unit of the portable optical measurement device to the main optical measurement device.