Adaptive Drug Delivery System for Personalized Insulin Alerts
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Solution Overview
Problem
Current drug delivery systems do not adequately account for individual patient needs and varying drug availability situations, leading to unnecessary reminders or missed alerts regarding drug depletion.
Innovation Solution
A drug delivery system that allows patients to set personalized threshold criteria for residual drug availability, considering measurement units like time, boluses, or absolute amounts, and dynamically adjusts these criteria based on patient behavior, location, and drug supply conditions, providing tailored alerts via a user interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed threshold criteria are used for drug availability alerts, then the system is simple to operate, but it cannot adapt to individual patient needs and varying drug availability situations
Solution Approach 1:
The patent implements dynamic threshold criteria that can be adjusted based on patient-specific factors such as drug consumption rate, location, and drug availability. The system transitions from static fixed thresholds to dynamic adaptive thresholds that automatically adjust according to real-time patient data and environmental conditions, resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The system changes the parameter of threshold values from fixed to variable, allowing the alert thresholds to be modified based on patient needs, location, and drug supply conditions. This parameter change enables the system to adapt to individual patients while maintaining a unified alert mechanism, balancing adaptability with system simplicity.
2Reliability
If alert thresholds are set too low, then false alarms are reduced, but the patient may not have sufficient time to react to drug depletion
Solution Approach 1:
The system performs preliminary calculations of drug consumption rates and projects future drug availability based on current usage patterns. By anticipating drug depletion before it occurs, the system provides advance warning with sufficient lead time for the patient to react, while maintaining reliable alert thresholds based on actual consumption behavior rather than arbitrary fixed values.
Solution Approach 2:
The system continuously monitors drug consumption and provides feedback to adjust alert thresholds dynamically. This feedback mechanism ensures that alerts are triggered at appropriate times based on actual usage patterns, preventing both false alarms and premature warnings, and giving patients adequate reaction time while maintaining high alert reliability.
3Ease of operation
If personalized threshold criteria are implemented, then patient compliance is enhanced, but the system requires more complex data processing and user input
Solution Approach 1:
The system automatically collects and processes patient data such as drug consumption rates, location information, and drug availability without requiring manual patient input. The automated data collection and processing reduce the burden on patients while implementing personalized alert thresholds, enhancing compliance without proportionally increasing operational complexity.
Solution Approach 2:
The system uses a unified alert mechanism that serves multiple functions: it provides personalized alerts based on individual patient needs, adapts to different locations and drug availability conditions, and maintains a single user interface for all patients. This multi-functionality allows personalized compliance enhancement without requiring separate complex systems for each patient.
Data Source
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AI summary
The invention relates to a drug delivery system for a patient comprising an insulin delivery device (100), a user interface (101), a controller comprising instructions and a user definable threshold criterion (114; 116) of a residual availability of a drug provided in a reservoir (102) of the drug delivery system, wherein executing of the instructions by the controller (110) causes the controller (110) to control the drug delivery system to determine the amount of the drug that is currently available to the patient and compare the determined amount with the threshold criterion (114; 116), in response to the comparison, in case the determined amount is lower than or equal to the threshold criterion (114; 116), providing a signal to the patient via the user interface (101). The drug is insulin.