Microfluidic Embryo Culture Device with Capillary Flow Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current microfluidic devices for embryo culture face challenges in minimizing mechanical stress, media evaporation, and handling errors, while traditional methods rely on mineral oil layers that can be detrimental to embryo health, and lack precise control over the embryo microenvironment.
Innovation Solution
A microfluidic device with an inlet well, outlet well, and enclosed culture chamber, featuring inlet and outlet channels that prevent embryo passage, allowing fluid flow by capillary action, and a reservoir to retain fluid, thereby mimicking natural fluid flow and reducing mechanical stress and media volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional embryo culture methods using mineral oil layers are used, then evaporation is prevented, but embryo health is deteriorated due to detrimental effects of mineral oil
Solution Approach 1:
The invention removes the harmful mineral oil layer from the culture system while maintaining evaporation prevention through a closed microfluidic chamber design. The chamber seals the culture medium, preventing direct exposure to air and thus eliminating the need for mineral oil.
Solution Approach 2:
The microfluidic chamber acts as an intermediary structure that replaces the mineral oil layer's evaporation prevention function without its harmful effects. The chamber's sealed design provides a physical barrier against evaporation while being biocompatible with embryo development.
2Adaptability or versatility
If microfluidic devices are used to control fluid flow, then precise control over microenvironment is achieved, but mechanical stress from fluid flow may harm embryos
Solution Approach 1:
The microfluidic device enables dynamic control of fluid flow conditions, allowing researchers to adjust flow rates and patterns to match physiological conditions. This dynamic capability provides precise control over the embryo microenvironment while maintaining stress levels within safe ranges.
Solution Approach 2:
The device allows modification of fluid flow parameters such as velocity, pressure, and flow patterns to optimize embryo culture conditions. By carefully controlling these parameters, the system achieves precise microenvironment control while preventing excessive mechanical stress that could harm embryos.
3Ease of operation
If conventional petri dish culture methods are used, then handling is simple, but mechanical stress and handling errors increase
Solution Approach 1:
The microfluidic device segments the culture system into distinct functional zones (inlet well, culture chamber, outlet well) with integrated channels. This segmentation allows embryos to remain contained within the chamber during culture, eliminating the need for repeated handling and transfer operations that cause mechanical stress.
Solution Approach 2:
The device enables self-contained embryo culture where all necessary operations (media exchange, environmental control) occur within the sealed chamber without requiring external handling. The system performs culture functions autonomously, reducing human intervention and associated mechanical stress on embryos.
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 supports embryo development by minimizing mechanical stress, reducing media evaporation, and allowing precise control over the embryo microenvironment, enhancing embryo health and development without the need for mineral oil layers.
Implementation Method 1
inlet and outlet channels that prevent embryo passage, allowing fluid flow by capillary action
Data Source
AI summary
A device for supporting development of a cellular deposit comprising at least one of a cell or a tissue derived from an ovary. The device comprises an inlet well, an outlet well, and an enclosed culture chamber disposed between the inlet well and the outlet well. The device further comprises an inlet channel fluidly coupling the inlet well to the culture chamber and an outlet chamber and/or at least one outlet channel fluidly coupling the culture chamber to the outlet well. At least one of the outlet chamber and the at least one outlet channel is sized to prevent passage of the cellular deposit therethrough.