Automatic Analyzer Reagent Status Tracking
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Solution Overview
Problem
Conventional automatic analyzers require operators to manually monitor and manage reagent levels, leading to prolonged standby times as they must ensure reagents are replenished before resuming analysis operations, which can result in incorrect resumption of analysis without verifying reagent supply levels.
Innovation Solution
An automatic analyzer that utilizes a status table to track reagent levels and module statuses, automatically determining when reagents are exhausted, notifying operators, and resuming operations without operator intervention after reagent replenishment, by instructing analysis modules to skip pre- and post-analysis operations when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operator manually monitors reagent levels and determines when to replace bottles, then the operator has control over the replacement process, but the apparatus remains in standby state for prolonged periods and operator errors may occur
Solution Approach 1:
The system automatically monitors reagent levels through detection means and autonomously determines when replacement is needed, eliminating the need for operator intervention in monitoring. The control means automatically manages the standby state and resumption of analysis operations, making the system self-servicing regarding reagent supply management.
Solution Approach 2:
The detection means continuously provides feedback on reagent supply levels to the control means. When the remaining amount falls below a predetermined threshold, the system receives feedback signaling the need for replacement, automatically transitions to standby state, and later provides feedback when replacement is complete, enabling automatic resumption of operations.
2Productivity
If the apparatus automatically detects reagent exhaustion and manages standby state, then downtime is reduced and operations resume faster, but the system complexity increases
Solution Approach 1:
The control means performs multiple functions: it controls the detection means, manages the standby state transition, monitors replacement completion, and directs resumption of analysis operations. This multi-functionality consolidates what could be separate complex subsystems into a unified control mechanism, reducing overall system complexity while maintaining automation benefits.
3Loss of information
If the operator must check multiple display screens to monitor apparatus status, then comprehensive monitoring is possible, but the ease of operation decreases
Solution Approach 1:
The system automatically provides status information through the detection means and control means, which monitor and report reagent levels and operational status without requiring the operator to actively check multiple screens. The information is presented in a centralized manner that eliminates the need for operators to navigate multiple display screens.
Data Source
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AI summary
Conventional automatic analyzing apparatus is disadvantageous in that if the amount of one of the reagents in respective containers (e.g., bottles) falls to zero, the operator must replace the empty container and then cause the apparatus to resume its analysis operation, meaning that it takes time for the apparatus to resume its analysis operation after an interruption due to reagent supply exhaustion. An automatic analyzer of the present invention includes a status table for storing the status of each analysis module and reagent information to allow identification of each reagent the supply of which is exhausted and allow tracking of the status of each analysis module, etc. The automatic analyzer determines, based on the status table, whether and how it can continue its current analysis operation. The analyzer stores the results of this determination in its instruction information table. More specifically, the instruction information table stores analysis-unit operating information (or analysis-module operating information) and information to be supplied to the user or operator. The analysis-unit operating information includes instructions which instruct the analysis modules to initiate an analysis in a normal manner, finish an analysis in a normal manner, omit a pre-analysis operation, omit a post-analysis operation, or stop sampling, etc. Further, the reagent information and the status of each analysis module in the status table are updated each time a reagent container is replaced by the operator. This allows the automatic analyzer to generate and store, based on the status table, information for graphically indicating on its operation unit the completion of replacement of each reagent container.