Segmented Measurement Tool for Quantitative Blood Sample Transfer
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Solution Overview
Problem
Existing blood quantitative collection kits face issues with sample loss and reduced measurement accuracy due to incomplete blood collection and handling limitations.
Innovation Solution
A measurement tool with a sample collection unit and liquid feeding channel, featuring a detachable lid body that creates a closed space for efficient liquid transfer from the sample collection unit to a downstream channel, minimizing sample loss and ensuring accurate collection and measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If blood is collected in the base portion using a capillary phenomenon, then quantitative collection is achieved, but blood remains in the base portion and cannot be completely transferred for analysis
Solution Approach 1:
The device is divided into a base portion for collection and a lid portion for transfer. The lid portion includes a transfer channel that is spatially separated from the base portion, allowing complete drainage of collected blood into the transfer channel for subsequent analysis, eliminating residual blood in the collection chamber.
Solution Approach 2:
The lid portion is designed to be movable relative to the base portion. By opening or moving the lid, the collected blood can be dynamically transferred from the base portion through the transfer channel to the analysis area, enabling complete sample transfer while maintaining quantitative collection capability.
2Device complexity
If the base portion is used for both collection and analysis, then device simplicity is maintained, but measurement accuracy is reduced due to residual blood
Solution Approach 1:
The device is segmented into distinct functional zones: the base portion for quantitative collection and the lid portion for transfer and analysis. This segmentation prevents contamination from residual blood in the base portion while maintaining a relatively simple overall structure that can be manufactured efficiently.
Solution Approach 2:
The transfer channel acts as an intermediary pathway between the base portion and the analysis area. It mediates the transfer of blood samples, ensuring that analyzed samples are free from residual blood contamination while maintaining device simplicity by providing a dedicated transfer route rather than requiring complete separation of all components.
3Ease of manufacture
If a fixed structure is used for blood collection, then manufacturing is simplified, but complete sample transfer for analysis cannot be achieved
Solution Approach 1:
The lid portion is designed with movable or openable characteristics, allowing the structure to transition from a closed fixed state during collection to an open state during transfer. This dynamic design enables complete sample transfer while maintaining manufacturing simplicity through the use of standard movable component designs that can be easily fabricated.
Solution Approach 2:
The device is segmented into a base portion and a lid portion that can be manufactured separately using standard processes and then assembled. This segmentation allows each component to be optimized for its specific function while maintaining ease of manufacture through modular construction, enabling complete sample transfer capability without complex integrated designs.
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
The tool ensures quantitative collection and minimizes sample loss, enhancing measurement accuracy by effectively transferring the collected liquid sample to a downstream channel for analysis.
Implementation Method 1
a sample collection unit that collects a liquid sample by a capillary phenomenon
Data Source
AI summary
A measurement tool includes: a measurement tool body including a sample collection unit for collecting a liquid sample by a capillary phenomenon, and a liquid feed channel; and a lid body attachable to and detachable from the measurement tool body. The liquid feed channel includes an upstream side channel and a downstream side channel. A space is defined, into which an upstream side end of the sample collection unit and a downstream side end of the upstream side channel open, when the lid body is attached to the measurement tool body. The downstream side channel is connected to a downstream side end of the sample collection unit. The space is open when the lid body is separated from the measurement tool body, and the space is closed and the upstream side channel and the sample collection unit are connected when the lid body is attached to the measurement tool body.