Analyzer Container Catcher Positional Accuracy
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Solution Overview
Problem
Existing sample analyzers face challenges in ensuring positional accuracy of cuvette holders due to inadequate support, leading to potential misalignment and inadequate mixing of samples and reagents during the agitation process.
Innovation Solution
The analyzer incorporates a container catcher supported by both a rubber support and a rotating shaft, which oscillates to maintain positional accuracy and securely hold reaction containers, ensuring effective agitation and mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cuvette holder is supported only by a flexible rubber disk on the transport arm, then the device structure is simple and easy to manufacture, but the positional accuracy of the cuvette holder deteriorates
Solution Approach 1:
The support system is segmented into two independent components: a rubber disk for shock absorption and a separate positioning mechanism (guide rails, positioning pins, or magnetic positioning) for precision. This segmentation allows each component to perform its specialized function without compromising the other, resolving the contradiction between simplicity and precision.
Solution Approach 2:
An intermediary positioning mechanism is introduced between the transport arm and the cuvette holder. This intermediary component (such as guide rails with positioning pins or magnetic positioning elements) mediates between the flexible rubber disk support and the cuvette holder, ensuring positional accuracy while maintaining the benefits of flexible support.
2Productivity
If the cuvette holder is moved to the cuvette supplying position when empty, then the measurement process is continuous, but the positional accuracy deteriorates due to inadequate support
Solution Approach 1:
The positioning system is designed to be dynamically adaptive, providing enhanced positional support specifically when the cuvette holder is empty during transport. The positioning mechanism activates or engages more strongly during empty holder movement, ensuring accuracy is maintained during the critical transport phase while allowing continuous operation.
3Manufacturing precision
If a rigid support structure is used for the cuvette holder, then positional accuracy is improved, but the device complexity increases
Solution Approach 1:
Instead of making the entire support structure rigid, local quality is applied by providing rigid positioning elements (such as positioning pins, guide rails, or magnetic positioning features) only at the critical interface between the transport arm and the cuvette holder. The rest of the structure can remain flexible, maintaining simplicity while achieving local positional accuracy where needed.
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 ensures precise positional integrity and effective agitation of samples and reagents, preventing misalignment and inadequate mixing, thereby enhancing the accuracy and reliability of measurement samples.
Implementation Method 1
a first rubber support (124) and a second rubber support (124) that respectively and elastically support the container catcher (122)
Implementation Method 2
a rotating shaft (127) that is rotated by a driving source (126) and that transmits power to the other end of the container catcher (122) to oscillate the container catcher (122)
Data Source
AI summary
An analyzer comprises a container supplying unit which supplies a container, an agitating unit which agitates liquid in the container, and a measurement unit which performs a measurement using the liquid agitated by the agitating unit. The agitating unit comprises a base which is configured to move relative to the container supplying unit, a driving source which is mounted on the base, a container catcher which is configured to catch the container at one side, a transmitting member which transmits the power of the driving source to the other end side of the container catcher, and a supporting member which supports the container catcher at a position between one end and the other end of the container catcher.