Antibody-Coated Flow Channel for Cancer Cell Separation

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Solution Overview

Problem

Current methods for preventing cancer metastasis, such as chemotherapeutics and radiotherapeutics, often fail to achieve sufficient effects in separating cancer cells from non-cancer cells, leading to re-occurrence and death due to metastasis.

Innovation Solution

A cancer cell separating apparatus and method that utilizes a flow channel with antibody fixation areas to selectively separate cancer cells from non-cancer cells based on differences in velocity of movement, minimizing cell damage and allowing for accurate removal of cancer cells using a simple flow channel structure and specific antibodies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemotherapeutics and radiotherapeutics are used to prevent cancer metastasis, then cancer treatment is performed, but sufficient effects cannot be achieved and re-occurrence occurs

Engineering Contradiction:
Improvecancer treatment effectivenessVSAvoidcancer re-occurrence
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent replaces conventional chemical and physical cancer treatments with a mechanical separation system. A flow channel with antibody-coated surfaces physically separates cancer cells from non-cancer cells based on differential binding, enabling direct removal of cancer cells rather than relying on chemotherapeutics or radiotherapeutics that often fail to achieve sufficient effects.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces antibodies as intermediary substances that mediate the separation process. Antibodies are fixed to the flow channel surface and specifically bind to cancer cells, enabling selective separation. This intermediary mechanism provides a more reliable and effective approach compared to direct chemical or physical cancer treatments.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If complex flow channel structures are used for cancer cell separation, then separation accuracy may improve, but manufacturing cost increases

Engineering Contradiction:
Improvecancer cell separation accuracyVSAvoidflow channel manufacturing cost
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent extracts the essential function of cancer cell separation from complex structural configurations and achieves it through a simple flow channel with antibody-coated surfaces. By removing unnecessary structural complexity and focusing on the core mechanism of antibody-mediated binding, the design maintains high separation accuracy while significantly reducing manufacturing cost.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent achieves effective separation not through complex geometry but by changing the surface properties of the flow channel through antibody coating. This parameter change (from plain surface to antibody-coated surface) enables selective cancer cell binding and separation using a simple, cost-effective flow channel structure.

Inventive Principle:
Principle #35Parameter changes

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 apparatus effectively separates cancer cells with high accuracy and minimal damage, reducing manufacturing costs and accommodating the removal of various types of cancer cells, while potentially combining with existing treatments for enhanced cancer management.

Implementation Method 1

an antibody fixation area having antibodies which bind specifically to cancer cells fixed thereon

Methodology Applied
Scientific EffectSpecific binding: Adsorption

Implementation Method 2

the cancer cells and non-cancer cells are separated using a difference in velocity of movement between the cancer cells and the non-cancer cells

Methodology Applied
Scientific EffectDifference in velocity of movement:

Data Source

PatentUS9238791B2Cell separating apparatus and cell separating method
Publication Date: 2016.01.19 SEIKO EPSON CORP
  • US9238791B2 patent drawing
  • US9238791B2 patent drawing
  • US9238791B2 patent drawing

AI summary

A cancer cell separating apparatus includes: a flow channel including an antibody fixation area having antibodies which bind specifically to cancer cells fixed thereon, wherein the cancer cells and non-cancer cells are separated using a difference in velocity of movement between the cancer cells and the non-cancer cells in cell slurry introduced into the flow channel.