Multi-Layer Blood Filtration for On-Site Component Separation

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Solution Overview

Problem

Existing methods for separating individual blood components require complex procedures and specialized equipment, limiting their applicability to well-equipped laboratories.

Innovation Solution

A multi-layered filter system with filter units of varying pore sizes and materials is used to separate blood components, allowing for on-site extraction and diagnosis without specialized equipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional methods are used to separate blood components, then separation precision is improved, but device complexity increases

Engineering Contradiction:
Improveblood component separation precisionVSAvoidseparation procedure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple filter units with different pore sizes into a single integrated multi-layered filter device. This merging of filtration functions into one device allows for precise separation of blood components (cells, platelets, exosomes, proteins) without requiring multiple separate instruments and complex procedures, thus reducing device complexity while maintaining separation precision

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The multi-layered filter is segmented into multiple filter units with progressively smaller pore sizes arranged in sequence. Each filter unit is designed to capture specific size ranges of blood components, enabling precise separation through a single device without requiring complex multi-step procedures

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If specialized equipment and reagents are used for blood component separation, then separation precision is improved, but ease of operation deteriorates

Engineering Contradiction:
Improveblood component separation precisionVSAvoidfield applicability
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The multi-layered filter device performs blood component separation autonomously through passive filtration based on size differences. The device requires no external power source, complex controls, or specialized reagents - blood simply passes through the filter units and components are automatically separated by size, making it easy to operate in field settings without specialized equipment

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The device utilizes porous filter materials with controlled pore sizes to achieve separation. The filter units are made of porous materials that allow selective passage of blood components based on their size, eliminating the need for complex mechanical systems, reagents, or specialized equipment while maintaining separation precision

Inventive Principle:
Principle #31Porous materials

3Adaptability or versatility

If multiple filter units with different pore sizes are used, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improveblood component separation capabilityVSAvoidfilter structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple filter units with different pore sizes are merged into a single multi-layered filter device with a compact structure. This integration allows the device to adapt to various blood component separation needs (cells, platelets, exosomes, proteins) while maintaining a relatively simple overall structure that can be disassembled for collection and analysis

Inventive Principle:
Principle #5Merging (Combining)

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 multi-layered filter simplifies the separation process, enabling blood component analysis in non-laboratory settings and facilitating the use of individual components for diagnosis.

Implementation Method 1

a first filter unit for separating blood cells from a whole blood sample, a second filter unit for separating cell fragments having blood platelet and exosome, and a third filter unit for separating proteins, wherein the whole blood sample is separated into blood components through each filter unit provided to have various pore sizes

Methodology Applied
Scientific EffectPhysical filtration: Filter (physical)

Data Source

PatentEP4063855B1Multi-filter for separating blood components, and disease diagnosis kit using same
Publication Date: 2025.12.17 KYUNGPOOK NAT UNIV IND ACADEMIC COOP FOUND
  • EP4063855B1 patent drawingFigure 1
  • EP4063855B1 patent drawingFigure 2
  • EP4063855B1 patent drawingFigure 3

AI summary

This disclosure relates to a multi-layered filter for separating blood components and a disease diagnosis kit using the same. The multi-layered filter for separating blood components according to the present disclosure may include a first filter unit configured to separate blood cells from a whole blood sample, a second filter unit configured to separate cell fragments having blood platelet or exosome, and a third filter unit configured to separate protein, wherein the whole blood sample is separated into blood components by passing through the filter units provided to have different pore sizes, thereby effectively separating individual components of the blood without a separate machine. In addition, after filtering, the multi-layered filter may be disassembled to diagnose each component remaining in the filter so as to be utilized for diagnosis.