Flat-Spring Terminals for Analyzer Disposal Ejection
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Solution Overview
Problem
Conventional blood glucose level measuring devices face issues with analytical instruments jumping out during disposal due to uneven load distribution from terminals, leading to potential spills and infection risks.
Innovation Solution
The analyzing device employs terminals with a flat-spring shape, positioned symmetrically relative to the analytical instrument's center line, and a disposal mechanism with acting portions aligned to apply load symmetrically, reducing the likelihood of the instrument jumping out by distributing force evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals are positioned to contact electrodes for voltage application and current measurement, then measurement function is achieved, but analytical instrument may jump out during disposal due to uneven load distribution
Solution Approach 1:
The contact portions of the terminals are positioned asymmetrically relative to the disposal direction, specifically in non-parallel arrangement. This asymmetric positioning ensures that when the disposal mechanism applies force to eject the analytical instrument, the terminals do not simultaneously exert maximum elastic restoring force on all electrodes at once, thereby preventing sudden ejection and potential spills.
Solution Approach 2:
The terminal structure is segmented such that multiple contact portions are distributed at different positions and orientations. This segmentation allows the disposal mechanism to interact with the instrument progressively rather than all terminals reacting simultaneously, reducing the peak force that could cause ejection.
2Reliability
If edge portions of terminals are made to contact electrodes firmly for stable connection, then contact reliability is improved, but load on analytical instrument increases during disposal
Solution Approach 1:
Different regions of the terminal structure have different properties: the edge portions are designed with elastic properties to provide firm contact during measurement, while the overall terminal arrangement is optimized to minimize simultaneous force application during disposal. The contact portions are positioned to provide localized contact that is sufficient for measurement but does not create excessive cumulative load during ejection.
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 ensures safe and controlled disposal of the analytical instrument, minimizing the risk of spills and infections by evenly distributing the load and preventing sudden ejection.
Implementation Method 1
the edge portions 95 (contact points 96) of the terminals 94 are provided in the form of a flat spring... the edge portions 95 (contact points 96) of the terminals 94... are displaced upward... the electrodes 93 of the analytical instrument 90 are pressed by the edge portions 95 of the terminals 94
Data Source
AI summary
The present invention relates to an analyzing device to be used by inserting an analytical instrument 2 comprising a plurality of terminal portions 25A to 28A therein, the device including a plurality of terminals 42 and 43 having a shape of a flat spring to be in contact with the plurality of terminal portions 25A to 28A, and a disposal mechanism for disposing of the analytical instrument 2 after completing an analysis. Contact portions 46 and 47 in the plurality of terminals 42 and 43 having a flat-spring shape to be in contact with the plurality of terminal portions 25A to 28A are placed to be in non-parallel with a direction orthogonal to a disposal direction D1 of the analytical instrument 2 in planar view. The portions 46 and 47 in the plurality of terminals 42 and 43 having the flat-spring shape are preferably placed so as to have a symmetrical or substantially symmetrical positional relationship relative to a center line L1 of the analytical instrument 2 extending along the disposal direction D1.