External Quality Control for Nucleic Acid Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Nucleic acid detecting devices used for clinical purposes, such as cancer diagnosis and infectious disease testing, require reliable external quality control due to the complexity of preprocessing steps like nucleic acid extraction or homogenization, which varies across facilities, making it challenging to ensure the reliability of subsequent detection processes.
Innovation Solution
An external quality control system comprising a network-connected external quality control computer and preprocessing/nucleic acid detecting devices that perform and measure preprocessing operations, transmit data for storage and analysis, and implement quality control processes based on measurement data to ensure consistency and reliability across facilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If preprocessing operations (nucleic acid extraction, homogenization) are performed in different facilities, then local flexibility and operational independence are improved, but measurement precision and reliability of quality control deteriorate
Solution Approach 1:
The invention changes the parameter of quality control from internal-only to external-based, using standardized external quality control substances with known nucleic acid concentrations. This allows different facilities to maintain operational independence while achieving consistent measurement precision through standardized external references that are independent of local preprocessing variations
Solution Approach 2:
The invention introduces an intermediary element - the external quality control substance - that mediates between the preprocessing operation and the final measurement. This intermediary substance serves as a common reference point across different facilities, enabling comparison and quality control consistency despite variations in local preprocessing methods
2Productivity
If preprocessing steps are simplified, then productivity and processing speed are improved, but manufacturing precision and reliability of nucleic acid detection deteriorate
Solution Approach 1:
The invention implements a feedback mechanism where external quality control measurement results are used to monitor and evaluate preprocessing quality. The system provides feedback information about preprocessing performance, allowing facilities to maintain simplified high-speed processing while ensuring reliability through continuous quality monitoring and comparison with standardized external references
3Reliability
If external quality control system is implemented, then reliability of quality control is improved, but device complexity and system infrastructure requirements worsen
Solution Approach 1:
The invention applies universality by designing an external quality control system that can be universally applied across different facilities and preprocessing methods. The standardized external quality control substances and measurement protocols serve multiple functions: quality verification, method comparison, and performance monitoring, reducing the need for facility-specific complex quality control systems
Data Source
AI summary
An external quality control method, using an external quality control system which comprises an external quality control computer and a plurality of preprocessing devices connected to the external quality control computer via a network, comprising: performing preprocessing operations on preprocessing quality control samples, the preprocessing devices being adapted to prepare samples for measurement of target nucleic acid; measuring preprocessed preprocessing quality control samples to obtain measurement data; providing the measurement data to the external quality control computer over the network; storing the measurement data; and implementing an external quality control process based on the measurement data, is disclosed. An external quality control method for detection of nucleic acid, an external quality control method for preparation of calibration curve, an external quality control computer, a preprocessing device, and a nucleic acid detecting device are also disclosed.