Microfluidic Channel for Biofluid Analysis
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Solution Overview
Problem
Current microscopy-based sediment analysis systems for biofluids require well-mixed samples, leading to cell loss and increased time and skill for operation, making them inefficient for biofluid analysis.
Innovation Solution
A microfluidic device with a transparent first layer and an opaque second layer forming a microfluidic channel, which allows for fluid communication and is designed to receive and separate components from biofluids, including urine, using a radiation source and detector for analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If microscopy-based sediment analysis systems are used to analyze biofluids, then diagnostic accuracy can be achieved, but cell loss occurs and operational complexity increases
Solution Approach 1:
The device segments the analysis process into distinct functional zones within the microfluidic channel: a mixing region for sample preparation, a separation region for component differentiation, and an analysis region for detection. This segmentation allows each zone to perform its specific function optimally without requiring well-mixed samples, thereby preventing cell loss while maintaining diagnostic accuracy.
Solution Approach 2:
The microfluidic channel acts as an intermediary structure that guides the biofluid through controlled flow paths, enabling separation and concentration of analytes before detection. This intermediary system eliminates the need for manual mixing and centrifugation steps that cause cell loss, while still providing the separated components needed for accurate microscopy-based analysis.
2Measurement precision
If well-mixed samples are prepared for analysis, then diagnostic accuracy is maintained, but time consumption and skill requirements increase
Solution Approach 1:
The device performs preliminary separation and concentration actions within the microfluidic channel before the sample reaches the analysis region. The channel geometry and integrated filters pre-process the sample to create optimally prepared analyte distributions, eliminating the need for time-consuming manual mixing and centrifugation steps while maintaining diagnostic accuracy.
Solution Approach 2:
The microfluidic system is designed to automatically separate and concentrate components through passive flow dynamics and integrated filtration structures. The device serves itself by utilizing the natural flow of the biofluid to achieve separation without requiring external mixing equipment or skilled manual intervention, thereby reducing both time and skill requirements while preserving diagnostic capability.
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 system enables efficient analysis of biofluids by minimizing cell loss and reducing operational complexity, allowing for rapid identification of analytes like red blood cells, white blood cells, and other components in urine samples.
Implementation Method 1
a microfluidic channel that establishes a fluid communication path between the first opening and the second opening... configured to separate one or more components from the fluid
Implementation Method 2
a first layer defining a first opening and a second opening, the first layer being substantially transparent
Data Source
AI summary
Described herein are various inventions and embodiments thereof, directed to systems, devices, and methods for analysis of a biofluid, as well as controlling a biofluid analysis system using a microfluidic device. Embodiments of biofluid analysis systems disclosed herein may provide analysis of a biofluid to identify and characterize one or more analytes. An apparatus may include a first layer defining a first opening and a second opening. The first layer may be substantially transparent. A second layer may be coupled to the first layer and define a microfluidic channel that establishes a fluid communication path between the first opening and the second opening. At least a portion of the second layer may be substantially opaque.