Biochemical Analyzer Reaction Wheel Asymmetry
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Solution Overview
Problem
Conventional biochemical analyzers with double ring and double detection systems waste cuvettes due to inconsistent photoelectric detection intervals, leading to increased costs and larger reaction wheel sizes, which complicates high-precision drive control.
Innovation Solution
The biochemical analyzer optimizes cuvette positions on the reaction wheel by adjusting the intervals between photoelectric detection and other work positions, allowing for reduced cuvette waste and a smaller analyzer size through precise positioning and movement tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional double ring and double detection systems are used, then photoelectric detection can be performed, but cuvettes are wasted due to inconsistent detection intervals
Solution Approach 1:
The patent applies asymmetry by intentionally creating different cuvette position intervals between the inner ring and outer ring photoelectric detection positions. The inner ring has a first cuvette position interval while the outer ring has a second cuvette position interval, where these intervals are deliberately asymmetric and differ by one cuvette position. This asymmetric design allows the reaction wheel to complete full testing cycles without requiring wasted cuvette positions, thereby resolving the contradiction between maintaining detection precision and reducing cuvette waste.
2Adaptability or versatility
If conventional cuvette position arrangements are used, then all work positions can be accommodated, but the reaction wheel size increases
Solution Approach 1:
The patent applies parameter changes by modifying the cuvette position interval parameters of the reaction wheel. Specifically, it sets the inner ring photoelectric detection position at a first cuvette position interval and the outer ring photoelectric detection position at a second cuvette position interval, where the difference between these intervals is exactly one cuvette position. This parameter optimization allows all necessary work positions (photoelectric detection, sample injecting, reagent injecting, sample stirring, reagent stirring, and cuvette cleaning) to be accommodated within a minimized reaction wheel circumference, thereby reducing the overall wheel size while maintaining full functionality.
3Ease of manufacture
If larger reaction wheel sizes are used, then all components can be installed, but high precision drive control becomes more difficult
Solution Approach 1:
The patent applies parameter changes by optimizing the reaction wheel's geometric parameters, specifically the cuvette position intervals. By setting the inner ring interval and outer ring interval to differ by exactly one cuvette position, the patent minimizes the overall reaction wheel size. This size reduction directly simplifies the drive control system requirements, making high precision control more achievable and less difficult while still providing sufficient space for all necessary components to be properly installed and positioned.
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
This configuration reduces cuvette waste, lowers costs, and minimizes the size of the reaction wheel while maintaining high precision and test flow consistency, enhancing the efficiency and control of the biochemical analysis process.
Implementation Method 1
a photoelectric detection component, which is located at the photoelectric detection position of the inner ring and outer ring
Data Source
AI summary
An automatic biochemical analyzer, comprises a reaction wheel comprising an inner ring and an outer ring, wherein the reaction wheel is equally divided into multiple cuvette positions; the inner ring and the outer ring have a photoelectric detection position, a sample injecting position, a reagent injecting position, a sample stirring position, a reagent stirring position and a cuvette cleaning position; the photoelectric detection position of the inner ring is offset relative to that of the outer ring by a first cuvette position along a counterclockwise or clockwise direction; and the sample injecting positions, the reagent injecting positions, the sample stirring positions, and the reagent stirring positions of the inner ring are offset relative to those of the outer ring by a second cuvette position along the same direction, the first cuvette position is equal to the second cuvette position, or a difference between those two is one cuvette position.