Laboratory Liquid Metering Logs for Traceable Routine Validation
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Solution Overview
Problem
Existing laboratory metering systems for liquids lack sufficient traceability and quality management capabilities, allowing only limited tracing of samples or liquids produced, making it difficult to ensure the correct and complete performance of work routines.
Innovation Solution
An electronic laboratory metering system with a documentation unit that generates and stores protocol data sets including operating and context parameter data, allowing for comparison with target data to validate work routines and improve traceability and quality management, featuring a comparison unit that identifies deviations and stores results within the protocol data sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If a visual comparison system using camera and operator display is used, then error indication capability is improved, but automation level and objective validation capability deteriorate
Solution Approach 1:
The patent replaces the mechanical/optical camera-based visual comparison system with an electronic data processing system that automatically compares measured values against reference values. The electronic system processes measurement data through digital algorithms, substituting the manual visual inspection process with automated electronic computation and statistical evaluation, thereby achieving objective and autonomous validation without requiring operator involvement in the comparison process
Solution Approach 2:
The measurement system performs self-validation by automatically comparing its own measured values against stored reference values and generating validation results without external intervention. The system serves itself by incorporating the comparison and validation functions within the same electronic device, enabling autonomous error detection and quality assurance through internal data processing and statistical analysis
2Reliability
If comprehensive data collection and comparison systems are implemented, then traceability and quality management are improved, but device complexity increases
Solution Approach 1:
The electronic laboratory metering device integrates multiple functions within a single system: measurement, data storage, reference value comparison, statistical analysis, and validation reporting. The electronic device serves as both the measurement instrument and the validation system, eliminating the need for separate complex infrastructure and reducing overall system complexity while maintaining comprehensive traceability and quality management capabilities
Solution Approach 2:
The patent introduces an electronic data processing system that acts as an intermediary between the measurement process and the validation process. This intermediary component handles data transmission, storage, and comparison operations, simplifying the connection between measurement devices and validation requirements while maintaining data integrity and traceability through structured electronic data management
Data Source
AI summary
An electronic laboratory metering system for liquids includes an electrical hand-held metering device (2) having at least one operation sensor unit (5) that detects operation of the hand-held metering device (2) and generates operating data and stores same in a storage apparatus (6), wherein the hand-held metering device (2) has an interface module (7) for connecting the hand-held metering device (2) to an external network access apparatus (4) for transferring the operating data; the metering system (1), specifically a data processing system (3), has a comparison unit (9) to compare operating data with target operating data and/or to compare context parameter data from the context parameter sensor unit (8) with target context parameter data and to generate a comparison result. The metering system (1) includes a documentation unit (10) designed to generate and store log data records including at least the operating data and/or the context parameter data. The documentation unit (10) is connected to the comparison unit (9) to transmit the comparison results from the comparison unit (9) to the documentation unit (10) and the documentation unit (10) stores the comparison results as part of the log data records to be assigned to the relevant operating data and/or context parameter data, to add to same after operation of the hand-held metering device (2) has ended.

