Quality Control Chart Display for Analyzer Trend Analysis
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Solution Overview
Problem
Existing quality control methods struggle to identify the cause of abnormalities in measurement results due to the difference in measurement frequencies between quality control substances and subject samples, making it difficult to grasp long-term trends of quality control substances and short-term trends of subject samples within a single display period.
Innovation Solution
A quality control support method and system that generate and display separate control charts for quality control substances and subject samples over different periods. The system allows for the designation of a shorter period for subject sample charts, which overlaps with the longer period for quality control substance charts, enabling side-by-side display to facilitate easier identification of abnormalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a single display period is used for both quality control substances and subject samples, then the display period must be long enough to show quality control trends, but this makes it difficult to grasp short-term subject sample transitions
Solution Approach 1:
The patent divides the display system into two separate control charts: a first control chart for quality control substances with a long display period, and a second control chart for subject samples with a short display period. This segmentation allows each chart to be optimized for its specific measurement frequency and trend analysis needs, resolving the contradiction between long-term and short-term trend visibility.
2Speed
If the display period is shortened to show subject sample transitions, then short-term trends are visible, but long-term quality control substance trends cannot be grasped
Solution Approach 1:
The patent creates separate display periods for different measurement types: the second control chart uses a short display period to quickly detect subject sample abnormalities, while the first control chart maintains a long display period for quality control substance trend analysis. This resolves the contradiction between fast response and long-term information retention.
3Loss of information
If separate control charts are displayed with different periods, then both long-term and short-term trends are visible, but the system complexity increases
Solution Approach 1:
The patent merges multiple control charts with different display periods into a single integrated display interface. This allows the system to maintain separate optimized display periods for quality control substances and subject samples while presenting them together in one unified view, reducing the complexity burden on the user and the system.
Solution Approach 2:
The display system is designed to handle multiple functions simultaneously: it displays both long-term quality control trends and short-term subject sample transitions, supports different measurement frequencies, and provides abnormality detection for both types of samples. This multi-functionality is achieved through a unified control chart system that manages multiple display periods.
Data Source
AI summary
A quality control support method for displaying a control chart of quality control related to an analyzer that measures a subject sample, the method comprising: generating a first control chart showing results of measured quality control substances by the analyzer in a first period; receiving a designation of a second period different from the first period, the second period being shorter than the first period and at least partially overlapping with the first period; generating a second control chart showing results of the measured subject samples by the analyzer in the second period; displaying the generated first control chart; and displaying the generated second control, is provided.