Hemodynamic Display Using Pulse Transit Change Rates
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Solution Overview
Problem
Checking changes in hemodynamics before and after a treatment requires significant time and effort, as operators manually record and calculate hemodynamic parameters.
Innovation Solution
A physiological information display apparatus and method that includes a reception unit for start and end signals, a calculation unit for calculating moving average pulse wave transit time and hemodynamic parameters, and a display controller to output change rates, facilitating easy monitoring of hemodynamic changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual recording and calculation of hemodynamic parameters is performed, then measurement precision is maintained, but loss of time increases
Solution Approach 1:
The system automatically performs the functions previously requiring manual operator intervention. The reception unit automatically captures start and end signals, the calculation unit automatically computes hemodynamic parameters and change rates, and the display controller automatically presents results. This self-service automation eliminates manual recording and calculation while maintaining measurement precision through systematic computational methods.
Solution Approach 2:
The manual mechanical process of recording and calculating hemodynamic parameters is replaced with an automated information processing system. The reception unit, calculation unit, and display controller form an automated computational system that substitutes the manual operator's actions, transforming a manual measurement process into an automated information processing workflow that maintains accuracy while reducing time loss.
2Productivity
If automated calculation system is implemented, then productivity increases, but device complexity increases
Solution Approach 1:
The automated system is divided into three distinct functional modules: the reception unit for capturing start and end signals, the calculation unit for computing hemodynamic parameters and change rates, and the display controller for presenting results. This segmentation allows each component to perform its specific function efficiently while maintaining overall system productivity, and the modular structure makes the complexity manageable through clear functional separation.
Data Source
AI summary
A physiological information display apparatus includes a reception unit configured to receive a start signal and an end signal, the start signal indicating a start timing of a treatment for a subject, the end signal indicating an end timing of the treatment, a calculation unit configured to calculate a moving average value of a pulse wave transit time of the subject, a hemodynamic parameter of the subject, using the calculated moving average value, and a change rate of the hemodynamic parameter in a period from the start timing to the end timing, based on the start signal and the end signal received by the reception unit, and a display controller configured to output, to a display, the change rate calculated by the calculation unit.