Closed-Loop Insulin Infusion Mode Switching With User Alerts
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Solution Overview
Problem
Existing insulin infusion systems lack user-configurable notification and control mechanisms that allow for safe regulation of blood glucose levels without disrupting daily activities, particularly during overnight use.
Innovation Solution
A system that includes user-configurable notifications and closed-loop control, allowing users to switch between modes based on their preferences, receive personalized alerts, and adjust infusion device operations through user input, with adaptive responses to detected alert conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If closed-loop control is implemented to autonomously regulate blood glucose levels, then control precision and safety are improved, but device complexity and user interaction requirements increase
Solution Approach 1:
The control system is segmented into distinct operational modes (manual mode and automated mode), allowing the system to function autonomously when needed while simplifying user interaction when preferred. This segmentation resolves the contradiction by enabling precise control without requiring the user to constantly manage complex settings.
Solution Approach 2:
The system dynamically transitions between operational modes based on user input and physiological conditions. The infusion pump can switch between manual control and automated closed-loop control, adapting the level of automation to match user preferences and situational needs, thereby balancing control precision with operational simplicity.
2Reliability
If continuous autonomous insulin infusion is provided, then blood glucose regulation effectiveness is improved, but user awareness and control capability deteriorate
Solution Approach 1:
The system provides dynamic control where users can adjust the level of autonomy in real-time. Users retain the ability to override automated decisions, manually adjust infusion rates, and switch between control modes, ensuring they maintain awareness and control capability while benefiting from automated regulation when desired.
Solution Approach 2:
The closed-loop system continuously monitors blood glucose levels and provides feedback to both the control algorithm and the user through notifications and alerts. This feedback mechanism ensures users remain informed about their physiological state and system actions, maintaining user awareness while achieving effective autonomous regulation.
3Adaptability or versatility
If automated mode switching is implemented, then adaptability to user preferences is improved, but device complexity and notification management increase
Solution Approach 1:
The notification system serves multiple functions: it informs users of mode transitions, alerts users to physiological conditions, provides system status updates, and delivers actionable recommendations. This multi-functionality allows the system to be highly adaptable to user preferences without proportionally increasing complexity, as a single notification infrastructure handles diverse communication needs.
Data Source
AI summary
A system includes one or more processors, and one or more processor-readable storage media storing instructions which, when executed by the one or more processors, cause performance of: switching operation of an infusion device from a first mode of fluid delivery to a second mode of fluid delivery, the first mode being different from the second mode, receiving user input after the infusion device is operating in the second mode, the user input being indicative of whether the infusion device should remain operating in the second mode or transition from the second mode to a different mode, and operating the infusion device in a manner that is influenced by the user input.