Migration Device Discharge Structure for Automated Cell Analysis

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Solution Overview

Problem

Current methods for determining the migration ability of ameboidally mobile cells are cumbersome and require manual intervention, lacking automation and efficiency in fluid management, which complicates the assessment process.

Innovation Solution

A migration device equipped with a sample chamber, a migration matrix, and a discharge structure that allows for automated fluid management, including the removal of fluids and prevention of air bubbles, enabling more streamlined and automated determination of cell migration ability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual fluid management is used in migration measurement devices, then device complexity is reduced, but productivity and ease of operation deteriorate due to cumbersome manual steps

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The device enables self-service operation where the fluid management system automatically handles liquid phase removal and air bubble prevention without requiring manual intervention. The discharge structure and pump work autonomously to maintain optimal fluid levels and prevent air entrapment during cell migration measurements.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical fluid management with an automated pump-based system. The pump mechanically removes excess liquid phase and controls fluid discharge, substituting manual pipetting or wiping operations with an automated mechanical-fluid hybrid system that improves precision and reduces operator intervention.

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

2Productivity

If automated fluid management is implemented, then productivity is improved, but device complexity increases due to additional components

Engineering Contradiction:
ImproveproductivityVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The discharge structure serves multiple functions: it acts as an overflow channel for excess liquid, provides a pathway for air bubble escape, and functions as an inlet for replacement medium. This multi-functionality consolidates what would otherwise require separate components, achieving automated fluid management without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the overflow discharge function with the air bubble removal function into a single integrated discharge structure. The same opening and channel system that excess liquid also serves as the escape route for air bubbles, combining two functions into one structural element rather than requiring separate mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If air bubbles are not prevented, then device complexity is reduced, but measurement precision deteriorates due to air bubble interference

Engineering Contradiction:
Improvemeasurement precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The device performs preliminary action by proactively preventing air bubble formation before they can interfere with measurements. The discharge structure is designed to allow air bubbles to escape during the fluid filling and adjustment phases, eliminating the need for subsequent manual bubble removal and ensuring measurement accuracy from the outset.

Inventive Principle:
Principle #10Preliminary action

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 device simplifies the determination of cell migration ability by automating fluid handling and reducing manual steps, allowing for more precise and efficient measurement of cell migration into porous membranes, thereby enhancing the accuracy and speed of the assessment process.

Implementation Method 1

The discharge structure (104) is designed to discharge a fluid from the sample chamber (102) and/or from the migration matrix (105) to the fluid outlet (103)

Methodology Applied
Scientific EffectGravity-driven flow: Gravitation

Data Source

PatentUS11130133B2Device and method for determining the migration ability of amoeboidally mobile cells
Publication Date: 2021.09.28 MEON MEDICAL SOLUTIONS
  • US11130133B2 patent drawing
  • US11130133B2 patent drawing
  • US11130133B2 patent drawing

AI summary

The invention relates to a migration device (100) having a sample chamber (102), a migration matrix (105) arranged in the sample chamber (102), and a fluid outlet (103). The migration device (100) also has a discharge structure (104), which is designed to discharge fluids from the sample chamber (102) to the fluid outlet (103). The invention also relates to methods for operating the migration device and to the use of a migration device for determining the migration ability of ameboidally mobile cells.