Serpentine Channel Blood Collection Device
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Solution Overview
Problem
Current blood sampling techniques are device-intensive, time-consuming, and costly, with open systems leading to inconsistent results and increased risk of blood sample exposure, particularly in point-of-care testing where manual handling and multiple devices are required for collection and analysis.
Innovation Solution
A closed system biological fluid collection device with a serpentine flow channel and puncturing element for separating plasma and cellular portions, incorporating a sample stabilizer and vacuum generation, which allows for efficient and safe blood sampling and separation within a single device, compatible with a centrifuge for point-of-care analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple devices (needles, vacuum tubes, syringes) are used for blood collection and testing, then the blood sample can be collected and tested, but the process becomes device-intensive, time-consuming, and costly
Solution Approach 1:
The patent combines multiple previously separate devices into a single integrated blood collection and testing device. The device integrates the puncturing element for blood collection, the reservoir for sample storage, and the testing chamber for analysis into one unified structure, eliminating the need for separate needles, vacuum tubes, and syringes
Solution Approach 2:
The single device performs multiple functions: it acts as a puncturing instrument for blood collection, a vacuum tube for sample accumulation, a syringe for sample transfer, and a testing chamber for blood analysis. This multi-functional design replaces the traditional multi-device workflow
2Reliability
If manual handling and multiple devices are used for blood collection, then the sample can be obtained, but the risk of blood sample exposure increases
Solution Approach 1:
The integration of collection and testing functions into one device creates a closed system where the blood sample remains contained within the device throughout the entire process, eliminating the need for manual transfer between devices and reducing exposure risk
Solution Approach 2:
The device serves as an intermediary container that receives the blood sample directly from the puncture site and maintains it in a controlled, enclosed environment until analysis is complete, preventing contact with the external environment
3Ease of operation
If open systems are used for blood sampling, then the collection process is simple, but the results become inconsistent
Solution Approach 1:
The device merges the collection and testing environments into a single controlled chamber, ensuring that the sample remains in a consistent, controlled condition from collection through analysis, thereby improving result reliability while maintaining operational simplicity
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 system reduces blood sample exposure, provides fast and reproducible mixing with a stabilizer, and enables accurate separation and analysis, enhancing safety and efficiency in blood sampling and testing processes.
Implementation Method 1
The serpentine flow channel is configured to separate the plasma portion from the cellular portion when a rotational force is applied to the biological fluid collection device
Implementation Method 2
the puncturing element extends through the inlet port of the housing and establishes flow communication with the serpentine flow channel
Data Source
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AI summary
A biological fluid collection device for receiving a multi-component blood sample having a first component and a second component, comprising: a housing having an inlet port, a serpentine flow channel in fluid communication with the inlet port, a first reservoir in fluid communication with a first end of the serpentine flow channel, and a second reservoir in fluid communication with an opposing second end of the serpentine flow channel, the serpentine flow channel configured to separate the second component from the first component when a rotational force is applied to the biological fluid collection device and to direct the second component to the second reservoir; and a puncturing element disposed within the housing and adapted for movement between a pre-actuated position wherein the puncturing element is retained within the housing and a puncturing position wherein the puncturing element extends through the inlet port of the housing and establishes flow communication with the serpentine flow channel.