Blood Collection Cylindrical Unit with Integrated First Blood Discard Tube
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Solution Overview
Problem
The existing systems for collecting blood in phials do not adequately address the issue of 'false positives' caused by microorganisms from the patient's skin contaminating the blood sample, leading to unnecessary antibiotic treatments and increased costs.
Innovation Solution
A system that includes a cylindrical unit with a built-in mechanism to collect and discard the 'first blood' taken after needle insertion, ensuring that only uncontaminated blood is used for further examination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first blood is collected and discarded using a separate test tube, then false positives are reduced, but the device complexity increases
Solution Approach 1:
The patent combines the test tube and cylindrical unit into a single integrated structure. The test tube is positioned inside the cylindrical unit with its open end aligned with the needle, eliminating the need for separate components while maintaining the function of collecting and discarding first blood to prevent false positives.
Solution Approach 2:
The cylindrical unit serves multiple functions: it retains the phial for blood collection, houses the test tube for discarding first blood, and provides structural support for the needle assembly. This multi-functionality reduces the need for separate devices while maintaining reliability.
2Reliability
If the test tube is fixed in the cylindrical unit, then the first blood is reliably collected, but the adaptability of the system decreases
Solution Approach 1:
The system is divided into distinct functional segments: the cylindrical unit for retention, the test tube for first blood collection, and the phial for subsequent blood collection. The test tube can be positioned or removed independently, allowing the system to adapt to different phial types while maintaining the first blood collection function when needed.
Solution Approach 2:
The test tube's position within the cylindrical unit can be adjusted or changed based on operational requirements. The system transitions between states where the test tube is in place (for first blood collection) and where it is removed or repositioned (for direct phial collection), providing dynamic adaptability.
Data Source
AI summary
A system for collection of blood in a phial has a cylindrical unit which can receive this phial or bottle at least partially, the cylindrical unit having an inner cavity and having a first, open end and a second end, inside the cavity of this unit there being removably inserted an element which can contain an empty test tube. The test tube is integral with this element, such as to constitute therewith a single component present in the cylindrical unit, which component is blocked in this unit for taking of the first blood, but is separable from the test tube only after this first blood has been collected.