Automatic Safety Adjustment for Infusion Device Parameters
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Solution Overview
Problem
Target controlled infusion (TCI) pump systems face challenges in accurately administering medications due to the burden on users to enter correct patient parameters, which can lead to incorrect drug doses and adverse events, as default values are often associated with a single type of patient, failing to account for variations in age, height, weight, and gender.
Innovation Solution
An automatic safety adjustment system that dynamically adjusts and displays more accurate default values for patient parameters like height and weight based on initially entered values, reducing the likelihood of user errors by providing values closer to the patient's actual characteristics, thereby minimizing the risk of incorrect drug administration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If default values for patient parameters are used without adjustment, then the system operation is simplified, but the accuracy of patient parameter representation deteriorates leading to potential dosing errors
Solution Approach 1:
The patent implements dynamic adjustment of default patient parameters based on the entered age value. When a user inputs the patient's age, the system automatically recalculates and updates default values for other parameters (height, weight, etc.) to match the appropriate age group, transforming static default values into dynamic, context-aware defaults that maintain both ease of operation and parameter accuracy
Solution Approach 2:
The system changes the parameter values based on the entered age by retrieving appropriate defaults from age-specific data tables. This parameter transformation ensures that the default values for height, weight, and other parameters are consistent with the patient's age category, resolving the contradiction between using simple defaults and maintaining parameter accuracy
2Measurement precision
If users manually enter all patient parameters, then the accuracy of patient parameters is improved, but the time required for initialization increases
Solution Approach 1:
The system performs preliminary action by pre-calculating and storing appropriate default parameter values in data tables for various age groups before the user needs them. When the user enters the age, the system has already prepared the corresponding height, weight, and other parameter defaults, eliminating the need for users to manually calculate or search for appropriate values and reducing initialization time while maintaining accuracy
3Device complexity
If default values are not adjusted based on age, then the device complexity is reduced, but the safety of drug administration deteriorates due to potential dosing errors
Solution Approach 1:
The system implements self-service by automatically adjusting its own default parameter values based on the entered age without requiring complex external calculations or manual intervention. The infusion device uses its internal data tables and automatic retrieval mechanisms to serve itself with appropriate defaults, maintaining safety through automated age-appropriate parameter selection while avoiding the need for complex external adjustment mechanisms
Data Source
AI summary
A method may include presenting, on a display of an infusion device, a first patient parameter and a second patient parameter. The infusion device may receive a first entry, which may include a first value of the first patient parameter. The infusion device may determine a default value of the second patient parameter based on the entered first value of the first patient parameter. The infusion device may present the determined default value of the second patient parameter. The infusion device may receive a second entry, which includes a second value of the second patient parameter. The second value may be an adjustment of the default value of the second patient parameter that is an accurate representation of the second patient parameter. Related methods and articles of manufacture, including apparatuses and computer program products, are also disclosed.