Dual-Path Cuvette Structure to Avoid Rotation in Fluid Analysis
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Solution Overview
Problem
Cuvettes with crossing analysis paths require rotation for different analyses, leading to time-consuming and risky processes that can cause contamination and falsified results.
Innovation Solution
A cuvette design with two non-crossing analysis paths of different lengths, allowing simultaneous analysis of fluids with varying concentrations, and a pipetting device with a fluid connection for precise filling and emptying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cuvettes with crossing analysis paths are used to analyze samples of different density or concentration, then the cuvette can be used for multiple analysis types, but the analysis paths cross and require rotation by 90° for changing the path, which is time-consuming and interrupts the workflow
Solution Approach 1:
The patent transitions from a single-plane analysis path to a three-dimensional arrangement where multiple analysis paths are positioned at different heights (z-dimension) within the cuvette. This vertical stacking allows simultaneous access to multiple paths without rotation, resolving the time-loss contradiction while maintaining versatility for analyzing different sample types.
Solution Approach 2:
The analysis section is segmented into multiple independent analysis paths positioned at different vertical levels. Each path can be accessed independently by the beam, allowing parallel or sequential analysis without mechanical rotation, thus eliminating workflow interruptions while maintaining the ability to handle different sample densities and concentrations.
2Adaptability or versatility
If cuvettes with crossing analysis paths are used, then different analysis paths can be utilized for different samples, but the cuvette must be rotated which entails the risk of contamination or even spillage
Solution Approach 1:
By arranging analysis paths vertically at different heights rather than crossing in the same plane, the patent eliminates the need for rotational movement. The beam can switch between paths by adjusting the vertical position, completely avoiding contamination and spillage risks associated with rotating the cuvette while maintaining the capability to analyze different sample types.
Solution Approach 2:
The patent replaces the mechanical rotation system with a vertical positioning system. Instead of rotating the cuvette to switch between analysis paths, the system uses vertical movement of the beam or cuvette holder to select different paths, eliminating mechanical contact that could cause contamination or spillage while preserving analytical versatility.
3Adaptability or versatility
If cuvettes with crossing analysis paths are used, then multiple analysis paths are available, but the measuring processes influence one another in the crossing region, leading to falsified results
Solution Approach 1:
The patent positions multiple analysis paths at different vertical levels within the cuvette, ensuring that the beam intersects the sample at distinct z-coordinates for each path. This spatial separation in the vertical dimension completely eliminates mutual interference between measurement processes, guaranteeing accurate results while maintaining the versatility of having multiple analysis paths for different sample types.
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
Facilitates efficient, reliable, and safe analysis of fluids with reduced error rates and material usage by enabling simultaneous analysis without rotation, thus enhancing precision and safety.
Implementation Method 1
The measure of the attenuation of the beam path during passage through the sample, for example mixed with dyes (the attenuation by the glass of the cuvette itself is taken into account as a constant) designates the light absorption of the sample
Data Source
AI summary
A cuvette for analyzing a fluid includes an interior space for receiving the fluid. The interior space includes an analysis section for analyzing the fluid. The analysis section extends over two opposite sides of the cuvette. The cuvette also includes a first opening for filling the cuvette, the fluid can be introduced into the interior space via the first opening, and the analysis section has a first analysis path for analyzing the fluid and a second analysis path for analyzing the fluid. The first analysis path is shorter than the second analysis path such that differently concentrated fluids can be analyzed by the first analysis path and the second analysis path. The first analysis path and the second analysis path extend from a first side of the opposite sides of the cuvette to a second side of the opposite sides of the cuvette.