Sample Analyzer Cover Locking Mechanism for Reagent Verification
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Solution Overview
Problem
Existing sample analyzers do not adequately prevent the restart of measurement operations when an incorrect or unsuitable reagent is replaced, requiring users to manually intervene to stop and restart the process.
Innovation Solution
A sample analyzer with a locking mechanism controlled by a processor that prohibits cover closure unless a predetermined condition is met, ensuring the correct reagent is set before allowing measurement resumption, utilizing RFID tags to verify reagent type and status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lid is locked automatically when closed, then the container is protected from accidental opening, but incorrect reagents can be installed and measurements may start with wrong reagents
Solution Approach 1:
The system performs preliminary verification of the reagent container before allowing the lid to be locked. The controller checks whether the reagent container matches the required reagent type before permitting lid closure and locking, preventing incorrect reagents from being installed and used in measurements.
2Ease of operation
If the lid can be freely opened and closed, then reagent replacement is convenient, but measurement integrity cannot be maintained
Solution Approach 1:
The locking mechanism dynamically changes its state based on verification results. When the reagent container is verified as correct, the lid can be locked to maintain measurement integrity. When incorrect, the lid remains unlocked or cannot be locked, allowing users to correct the error while maintaining operational convenience throughout the process.
3Reliability
If manual verification of reagent type is required, then incorrect reagents can be prevented, but user workload and time increase
Solution Approach 1:
The system performs self-verification of the reagent container type automatically. The controller reads information from the reagent container (such as RFID tags or barcode labels) and automatically verifies whether it matches the required reagent type, eliminating the need for manual verification by users while maintaining high accuracy.
4Reliability
If the lid locking mechanism is added, then reagent protection is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is merged with the existing lid structure and control system. The controller that manages measurement operations also manages the locking function, and the locking mechanism is integrated with the lid's actuation system, avoiding the need for separate independent locking components and reducing overall system complexity.
Data Source
AI summary
A sample analyzer comprising: a container set section in which a reagent container can be set which contains a reagent to be used in a sample analysis; a cover capable of making the container set section be in an open state and a closed state; a locking mechanism capable of permitting and prohibiting a closing of the cover; and a controller that controls the permission and prohibition of the closing of the cover by the locking mechanism. Also a non-transitory storage medium.