Movable Filtration Section for Blood Separation
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Solution Overview
Problem
Current blood filtration methods, such as centrifugation, are time-consuming and complex, making them unsuitable for urgent or emergency medical applications and point-of-care testing, which require quick and simple separation of blood components.
Innovation Solution
A compact blood filtering device with a tubular housing and movable filtration section, utilizing a filter medium to separate blood components, allowing for easy handling and integration of blood treatment processes, eliminating the need for decanting and minimizing equipment complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If centrifugation process is used for blood separation, then separation of blood components is achieved, but processing time is considerable and apparatus complexity increases
Solution Approach 1:
The patent replaces the mechanical centrifugation system with a filtration-based system. The filtration device uses a filter medium with specific pore sizes to separate blood components through pressure-driven flow, eliminating the need for centrifugal force generation and complex rotating mechanisms while achieving effective separation of plasma, cells, and other blood components.
Solution Approach 2:
The patent employs a filter medium with controlled porosity and specific pore size distribution to separate blood components. The porous structure allows selective passage of different blood components based on size, enabling plasma filtration while retaining cells and larger particles, thus achieving separation without mechanical centrifugation.
2Measurement precision
If centrifugation process is used for blood separation, then separation of blood components is achieved, but apparatus complexity increases
Solution Approach 1:
The patent replaces the mechanical centrifugation system with a filtration-based system. The filtration device uses a filter medium with specific pore sizes to separate blood components through pressure-driven flow, eliminating the need for centrifugal force generation and complex rotating mechanisms while achieving effective separation of plasma, cells, and other blood components.
Solution Approach 2:
The patent employs a filter medium with controlled porosity and specific pore size distribution to separate blood components. The porous structure allows selective passage of different blood components based on size, enabling plasma filtration while retaining cells and larger particles, thus achieving separation without mechanical centrifugation.
3Volume of moving object
If filtration section is movable within tubular housing, then device compactness and ease of handling are improved, but sealing complexity increases
Solution Approach 1:
The patent employs a movable filtration section that can slide within the tubular housing, transitioning between different positions to enable filtration, collection, and disposal phases. This dynamic design allows the device to maintain a compact form while providing functional versatility, with the filtration section moving along the tubular axis to access different chambers and outlets.
Solution Approach 2:
The patent introduces a sealing mechanism that acts as an intermediary between the movable filtration section and the tubular housing. This sealing component ensures fluid-tight connection during filtration while accommodating the linear movement of the filtration section, thus enabling motion without compromising sealing integrity.
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
Enables quick and efficient separation of blood components, reducing processing time and complexity, facilitating immediate analysis and minimizing contamination risks, while providing a compact and user-friendly solution for point-of-care testing.
Implementation Method 1
the filtration section comprises a raw side and a clean side separated by a filter medium... wherein a blood plasma/serum may pass through the filter medium and the residual blood flows through the second communication path
Data Source
AI summary
A blood filtering device has a tubular housing with a tubular section and tubular housing volume. A filtration section with a filter medium separating a raw side from a clean side is arranged in the tubular housing. The filtration section is movable along the tubular section and movably sealed relative to the tubular housing. The filtration section separates the tubular housing volume into variable first and second tubular housing volumes. A first communication path extends between raw side and first tubular housing volume. A second communication path exits between raw side and second tubular housing volume. When moving the filtration section, blood in the first tubular housing volume flows through the first communication path to the raw side; blood plasma passes through the filter medium to the clean side; residual blood flows through the second communication path into the variable second tubular housing volume.