Blood Pressure Measurement Algorithm Using Dynamic Reference Values
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Solution Overview
Problem
Existing electronic sphygmomanometers provide inaccurate blood pressure measurements due to the lack of consideration for age, gender, season, and time-based blood pressure fluctuations, leading to incorrect health status assessments and user confusion.
Innovation Solution
A method to determine real-time blood pressure reference values by incorporating age, gender, measurement date, and time factors, using algorithms to adjust blood pressure measurements, and incorporating temperature compensation, along with heart rate validation to eliminate inaccuracies, and using a mobile application for data processing and display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If fixed blood pressure reference values (e.g., 120/80 mmHg) are used for all users, then the device is simple to operate, but the measurement accuracy deteriorates due to ignoring age, gender, season, and time-based fluctuations
Solution Approach 1:
The patent implements dynamic reference values that automatically adjust based on user characteristics (age, gender) and environmental factors (season, time of day). Instead of a fixed reference, the system calculates personalized reference ranges that fluctuate according to physiological patterns, resolving the contradiction between measurement accuracy and system simplicity
Solution Approach 2:
The system changes the reference parameter from a static value to a dynamic range based on multiple variables. By incorporating age, gender, season, and time as modifying parameters, the reference blood pressure values adapt to individual physiological conditions, improving measurement accuracy without requiring complex user input during measurement
2Measurement precision
If multiple fluctuation factors (age, gender, season, time) are incorporated into reference values, then measurement accuracy improves, but the device complexity and data processing requirements increase
Solution Approach 1:
The system performs preliminary data collection and processing by storing user characteristics (age, gender) and environmental correlations (seasonal and temporal patterns) in advance. These pre-established databases enable rapid reference value calculation during measurement without requiring complex real-time analysis, balancing accuracy with operational simplicity
Solution Approach 2:
The patent creates a universal reference system that handles multiple user types and conditions through a single integrated algorithm. The same computational framework adapts to different ages, genders, seasons, and times, eliminating the need for separate reference tables for each scenario and reducing overall system complexity
3Measurement precision
If real-time reference values are calculated based on user characteristics and environmental factors, then personalized accuracy improves, but the time required for measurement and data processing increases
Solution Approach 1:
User characteristics such as age and gender are collected during initial device setup or first use, and environmental correlations are pre-calculated and stored in databases. This preliminary action eliminates the need for repeated data collection during each measurement, enabling rapid reference value retrieval and calculation while maintaining personalized accuracy
Solution Approach 2:
The system uses pre-established reference patterns and databases that capture typical blood pressure fluctuations for different user groups and conditions. By copying and applying these pre-analyzed patterns rather than performing new analysis each time, the system achieves personalized accuracy efficiently without excessive processing time
Data Source
AI summary
A method to determine a real-time blood pressure reference value according to the blood pressure fluctuation factor can determine a blood pressure state by the ratio of the blood pressure measurement value to the blood pressure reference value, and to display the blood pressure reference value, the blood pressure measurement value and the description information of the blood pressure state by the output device. The system, applying the method, includes a mobile terminal and a medical health monitoring system. The application program of the method is downloaded and installed through network connection and APP store or I/O device, so as to describe the user's blood pressure status based on the real-time blood pressure reference value, and report the blood pressure status information and medical advice to the user via network connection.