Calibration Member Slides to Block Ports in Component Measuring Device
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Solution Overview
Problem
Conventional component measuring devices for body fluids face contamination issues with the light emitter and receiver due to foreign substances entering through the strip path, leading to inaccurate measurements and requiring frequent attachment/detachment of a cover member, which reduces working efficiency.
Innovation Solution
A component measuring device with a calibration member that blocks the introduction and lead-out ports when not in use, sliding to allow light emission to the measuring chip upon insertion, eliminating the need for a cover member and enabling two-point calibration for accurate measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover member is detachably attached to the strip holder to reduce contamination, then the contamination of the light emitter and light receiver is reduced, but an attachment/detachment operation is required every time a body fluid component is measured which takes time
Solution Approach 1:
The calibration member automatically performs the protective function by blocking the introduction port and lead-out port when the measuring chip is not inserted, eliminating the need for manual cover attachment/detachment operations while maintaining contamination protection
Solution Approach 2:
The calibration member serves multiple functions: it blocks foreign substances from entering the optical path (protective function) and simultaneously serves as a calibration target for adjusting the optical system (measurement function), replacing the need for separate cover member operations
2Ease of operation
If the strip path is left open for strip insertion, then the ease of operation is improved, but foreign substances intrude through the strip path causing contamination of the light emitter and light receiver
Solution Approach 1:
The calibration member dynamically changes position based on the presence of the measuring chip: it blocks the ports when no chip is inserted to prevent contamination, and moves to allow light passage when a chip is inserted for measurement, thus adapting to operational requirements while maintaining protection
Solution Approach 2:
The calibration member acts as an intermediary element that selectively controls the opening of the introduction port and lead-out port, allowing light transmission only when needed for measurement while blocking foreign substance intrusion at other times
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 configuration reduces contamination, improves working efficiency by eliminating the need for frequent cover member operations, and ensures accurate measurement of body fluid components by calibrating the device using the calibration member and measuring chip before fluid analysis.
Implementation Method 1
a light emitter that applies light to the measuring chip through an introduction port open on a wall surface constituting the insertion hole; a light receiver that receives light from the measuring chip guided through a lead-out port open on the wall surface constituting the insertion hole
Implementation Method 2
biasing means for biasing the calibration member toward an insertion port of the insertion hole
Data Source
AI summary
A component measuring device includes a calibration member that is slidably disposed in an insertion hole of a chip attachment unit and a biasing member that biases the calibration member toward an insertion port. The calibration member is held by the biasing member at a position where the calibration member blocks the introduction port and a lead-out port and where light from a light emitter is applied to the calibration member when a measuring chip is not inserted in the insertion hole, and slides to a side opposite to the insertion port along with insertion of the measuring chip into the insertion hole so that light from the light emitter is applied to the measuring chip.