Hinged Blood Flow Measurement Device Using Near-Infrared Segmentation
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Solution Overview
Problem
Elderly individuals find it impractical to measure cerebral blood flow at home due to the size and complexity of existing cerebral blood flow measurement devices.
Innovation Solution
A blood flow measurement device comprising a first and second body portion connected by a hinge, allowing the angle between the bottom faces to be variable, with near-infrared radiation emission and reception units for easy measurement, and a program for processing the data on an information processing device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a cerebral blood flow measurement device is provided with near-infrared radiation emission and detection units, then brain activity can be measured, but the device size becomes large and complex making it impractical for home use by elderly people
Solution Approach 1:
The measurement device is divided into two separate body portions (first body portion with emission unit, second body portion with detection units) connected by a hinge. This segmentation allows each portion to be smaller and simpler while maintaining the complete measurement functionality when assembled together on the head
Solution Approach 2:
The device transitions from a single-plane configuration to a three-dimensional structure utilizing the hinge joint that allows angular adjustment. This enables the bottom faces of the two body portions to form variable angles, optimizing the spatial arrangement of optical components for accurate cerebral blood flow measurement while reducing individual component sizes
2Measurement precision
If existing cerebral blood flow measurement devices are used, then accurate brain activity measurement is achieved, but the devices are too large and complex for practical home use by elderly people
Solution Approach 1:
By segmenting the device into two wearable body portions connected by a hinge, the system becomes more like a headband or cap that can be easily adjusted and worn by elderly users at home, rather than a bulky single-unit device
Solution Approach 2:
The hinge connection provides dynamic adjustability, allowing the angle between the two body portions to be varied to fit different head sizes and shapes, making the device easier to operate and more comfortable for elderly users
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 easy and accurate measurement of blood flow, allowing users to perform brain training while maintaining good health without the need for large or complex equipment.
Implementation Method 1
a light source that emits near-infrared radiation from the first bottom face to the outside of the first casing
Implementation Method 2
a first light reception unit that receives the near-infrared radiation from the first bottom face side on the outside of the first casing, and a second light reception unit that receives the near-infrared radiation from the second bottom face side on the outside of the second casing
Data Source
AI summary
A blood flow measurement device easily measures the blood flow of a user, and includes a first body portion, a second body portion, and a hinge. The first body portion includes a first casing having a first bottom face, a light source that emits near-infrared radiation from the first bottom face to the outside of the first casing, and a first light reception unit that receives the near-infrared radiation from the first bottom face side on the outside of the first casing. The second body portion includes a second casing having a second bottom face, and a second light reception unit that receives the near-infrared radiation from the second bottom face side on the outside of the second casing. The hinge joins the first body portion to the second body portion so as to make an angle formed by the first bottom face and the second bottom face variable.