Multi-scale Blood Glucose Display with Logarithmic and Linear Scales
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Solution Overview
Problem
People with diabetes face challenges in accurately monitoring and managing their blood glucose levels, risking severe injuries or death from hypoglycemia or hyperglycemia due to inadequate insulin delivery systems, which lack effective visualization tools for current, historical, and projected glucose levels.
Innovation Solution
A system that integrates a blood glucose monitor and display device, using multiple scales (logarithmic for current and linear for historical/projected levels) to provide a comprehensive view of blood glucose information, including a method for predicting future levels based on physiological models and user input, facilitating informed insulin delivery decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single linear scale is used to display blood glucose levels, then historical and projected levels are displayed accurately, but current levels near dangerous hypoglycemic thresholds are not visually emphasized
Solution Approach 1:
The patent applies local quality by using different scale types for different portions of the display. The first portion (current glucose level) uses a logarithmic scale to emphasize changes near dangerous thresholds, while the second portion (historical and projected levels) uses a linear scale for accurate trend representation. This allows each section to have the optimal scale for its specific purpose without requiring a single complex scale for the entire display.
2Object-affected harmful factors
If a logarithmic scale is used for current blood glucose level, then dangerous hypoglycemic levels are visually emphasized, but historical and projected levels become difficult to interpret accurately
Solution Approach 1:
The patent segments the display into two distinct portions: a first portion for current glucose level using a logarithmic scale to emphasize hypoglycemia risk, and a second portion for historical and projected levels using a linear scale for accurate interpretation. This segmentation allows each portion to use the most appropriate scale type for its specific function, resolving the contradiction between visual emphasis and measurement accuracy.
3Loss of information
If multiple scales are used to display different blood glucose levels, then both current risk and historical trends are accurately represented, but the display system becomes more complex
Solution Approach 1:
The patent applies local quality by assigning different scale types to different portions of the display based on their specific information needs. The first portion uses a logarithmic scale optimized for showing current risk levels, while the second portion uses a linear scale optimized for showing historical trends. This localized approach ensures each portion has the optimal representation without requiring the entire system to use a complex multi-scale solution.
Solution Approach 2:
The patent segments the display information into two distinct portions with different scale requirements. By separating current glucose level display from historical/projected level display, the system can use simpler, purpose-optimized scales for each portion rather than implementing a single complex multi-scale system, thereby reducing overall display complexity while maintaining information completeness.
Data Source
AI summary
A system for displaying blood glucose information includes a blood glucose monitoring device configured to monitor blood glucose levels of a user, and a display. The system may also include one or more processors, and a non-transitory computer-readable medium containing instructions that, when executed by the one or more processors, cause the system to perform operations. The operations may include obtaining the blood glucose levels from the blood glucose monitoring device, where the blood glucose levels include at least a current blood glucose level and a historic blood glucose level. The operations may also include presenting the current blood glucose level at a first location on the display based on a first scale, and presenting the historic blood glucose level at a second location on the display based on a second scale different from the first scale.