Autosampler Syringe Switching Logic for Malfunction Recovery
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Solution Overview
Problem
Scientific instruments face downtime and wasted resources due to undetected syringe malfunctions, which conventional approaches fail to address effectively, leading to decreased laboratory throughput and data quality.
Innovation Solution
A scientific instrument support system with evaluation logic to identify syringe issues like bent needles or plungers, syringe logic to switch to a backup syringe, and reporting logic to notify users, implemented through a computing device, enabling automatic detection and recovery from syringe malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional approaches are used without automatic detection, then device complexity is reduced, but reliability deteriorates due to undetected syringe malfunctions
Solution Approach 1:
The syringe system performs self-diagnosis through evaluation logic that automatically detects malfunctions such as bent needles, blocked needles, stuck plungers, and injection anomalies. The system monitors its own operational status and triggers automatic syringe replacement without external intervention, enabling the instrument to service itself and maintain high reliability.
Solution Approach 2:
The system implements continuous feedback through evaluation logic that monitors syringe performance in real-time. When anomalies are detected in chromatographic datasets or through image analysis, the system provides feedback to trigger syringe replacement. This closed-loop feedback mechanism ensures reliable detection and response to syringe malfunctions.
2Productivity
If automatic syringe switching is implemented, then productivity is improved by reducing downtime, but device complexity increases due to multiple syringe seats and switching logic
Solution Approach 1:
The autosampler is divided into multiple independent syringe seats, allowing one syringe to be used while another is prepared or replaced. This segmentation enables continuous operation without downtime, as the system can switch between syringes seamlessly. The evaluation logic independently monitors each syringe and triggers switching only when necessary, maintaining simplicity while improving productivity.
Solution Approach 2:
The system performs preliminary evaluation of syringe status before malfunctions occur through continuous monitoring of injection parameters and image analysis. When a syringe shows signs of malfunction, the system prepares for switching in advance by identifying alternative syringes, ensuring minimal disruption to productivity and smooth transitions.
3Reliability
If multiple syringe seats are added to enable switching, then reliability is improved through backup syringes, but device complexity increases due to additional components
Solution Approach 1:
Multiple syringe seats are designed with universal compatibility to accommodate different syringe types and sizes. The evaluation logic and switching mechanism work uniformly across all syringe seats, allowing the system to maintain high reliability through backup syringes without proportionally increasing complexity. Each syringe seat serves multiple functions: active sampling, standby replacement, and initialization.
4Measurement precision
If image analysis is used to detect bent needles or plungers, then measurement precision is improved, but device complexity increases due to additional sensors and processing
Solution Approach 1:
The system replaces complex mechanical inspection methods with optical image analysis and chromatographic data evaluation. Image capture devices and sensors detect bent needles or plungers through optical fields, and evaluation logic processes the image data to identify anomalies. This substitution achieves high measurement precision while reducing mechanical complexity compared to physical inspection mechanisms.
Data Source
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AI summary
Disclosed herein are scientific instrument support systems, as well as related methods, computing devices, and computer-readable media. For example, in some embodiments, a scientific instrument support apparatus includes evaluation logic to identify a first syringe has a bent needle, a bent plunger, a blocked needle, or a stuck plunger; syringe logic to switch from the first syringe to a second syringe; and reporting logic to notify a user of a syringe problem.