Oblique Blood Glucose Meter Test Piece Alignment
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Solution Overview
Problem
Existing blood glucose meters face challenges in ensuring accurate measurement due to difficulties in stabilizing the test piece for contact with a small blood drop, especially for patients with shaky hands or impaired dexterity, and require improved visibility and ease of operation for both personal and hospital use, while also addressing issues with data reading and patient/operator identification.
Innovation Solution
The blood component measuring apparatus is designed with a test piece center axial line directed obliquely downward toward the distal end side when placed on a horizontal plane, enhancing the alignment of the spotted portion with the blood drop, and includes a monitor with optical data reading means positioned to avoid patient discomfort and ensure stable operation, with a concave curved face for easy grasping and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the test piece is held in a conventional horizontal or upward orientation, then the operation is simple, but the spotted portion cannot be properly aligned with the blood drop for accurate measurement
Solution Approach 1:
The test piece is designed with an asymmetric orientation where the spotted portion is positioned obliquely downward relative to the blood introduction path. This asymmetric configuration enables proper alignment with the blood drop while maintaining ease of operation, resolving the contradiction between measurement precision and operational simplicity.
Solution Approach 2:
The invention introduces a new spatial dimension by orienting the test piece at an oblique angle rather than horizontally or vertically. This dimensional change allows the spotted portion to align with the blood drop from a different spatial perspective, achieving accurate measurement without compromising operational ease.
2Stability of the object's composition
If the blood glucose meter is placed on a table to stabilize hands, then hand stability is improved, but the degree of freedom in wrist operation is suppressed making it difficult to align the test piece with the blood drop
Solution Approach 1:
The test piece design enables self-alignment with the blood drop through its oblique orientation. The spotted portion automatically positions itself correctly relative to the blood introduction path when the test piece is mounted, eliminating the need for complex wrist movements and maintaining both hand stability and operational flexibility.
3Measurement precision
If the spotted portion is positioned to align with the blood drop, then measurement accuracy is improved, but visibility of the spotted portion is reduced making operation difficult
Solution Approach 1:
The test piece is designed with differentiated local qualities: the spotted portion has a surface treatment or coloration that enhances its visibility against the background, while maintaining its oblique alignment function. This local quality enhancement allows the spotted portion to be both accurately positioned and easily visible during operation.
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
This design facilitates reliable and accurate blood glucose measurement by improving the alignment and visibility of the test piece with the blood drop, reducing measurement errors, and enabling convenient and stable data reading without patient discomfort.
Implementation Method 1
a spotted portion at the distal end of the test piece is brought into contact with a blood drop, whereby the blood is introduced to the test paper by capillary action through a communication path having a very small diameter
Data Source
AI summary
A blood glucose meter includes a front attachment part to which a test piece is attached, a measurement part for measuring a component of blood collected via a blood guide passage in the test piece, and a monitor for displaying the measurement results obtained by the measurement part. When the device is placed on a horizontal plane by referring to the display face of the monitor as the upper side and the opposite side as the lower side and placing the display face of the monitor upward, the central axis of the test piece extends obliquely downward toward the front side. The blood glucose meter comprises a main part provided with the monitor and a linking part between the main part and the front attachment part. The top face of the linking part is placed roughly parallel to the central axis line and is provided with an ejector lever.