Closed-Loop Artificial Pancreas Control With Automatic Module Failover
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Solution Overview
Problem
Existing closed-loop artificial pancreas insulin infusion control systems fail to automatically switch control units when modules with control units malfunction, leading to user experience issues and safety risks due to untimely drug infusion.
Innovation Solution
A closed-loop artificial pancreas insulin infusion control system with a detection module, infusion module, and electronic module, each equipped with control units and algorithms, allowing automatic switching based on priority conditions to ensure proper insulin infusion even if individual modules fail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control unit is set in a single program module (infusion device or external electronic device), then the system structure is simple, but the system reliability deteriorates when the device malfunctions or goes out of range
Solution Approach 1:
The patent divides the control unit into multiple independent program modules distributed across different devices (infusion device, external electronic device, detection device). Each module can independently execute control algorithms, allowing the system to segment control functions across multiple locations to enhance reliability while managing complexity through modular design.
Solution Approach 2:
The patent implements redundant control units in advance across multiple devices before any malfunction occurs. This beforehand cushioning ensures that if one control unit fails or goes out of range, backup control units are already in place to take over, preventing system failure and maintaining continuous insulin infusion control.
2Ease of operation
If manual device replacement is required when control unit malfunction occurs, then device complexity remains low, but user experience and safety deteriorate due to delayed drug infusion
Solution Approach 1:
The patent enables the system to automatically detect control unit malfunctions or out-of-range conditions and self-switch to backup control units without requiring user intervention. This self-service mechanism ensures continuous insulin infusion control while eliminating the need for manual device replacement, improving both user experience and infusion timeliness.
Solution Approach 2:
The patent implements a feedback mechanism where control units continuously monitor each other's status and automatically trigger switching when malfunctions or out-of-range conditions are detected. This real-time feedback ensures that the system responds immediately to control unit failures, maintaining drug infusion timeliness and safety without user involvement.
3Adaptability or versatility
If a single control unit is used, then the system is easier to manage, but the system cannot adapt when different modules fail
Solution Approach 1:
The patent designs control units with universal functionality that can operate independently across different devices (infusion device, external electronic device, detection device). Each control unit is capable of performing the complete control algorithm, allowing any module to take over control functions regardless of which specific device it resides in, enhancing adaptability to module failures.
Solution Approach 2:
The patent implements dynamic control unit assignment where the system can flexibly switch control functions between different devices based on real-time operational status. This dynamic allocation allows the system to adapt to various failure scenarios by assigning control responsibilities to available modules, improving versatility while managing complexity through automated switching logic.
Data Source
AI summary
The invention discloses a closed-loop artificial pancreas insulin infusion control system, including: detection module, an infusion module and an electronic module, the detection module, the infusion module and the electronic module all equipped with a control unit, and each control unit is preset with a first algorithm, a second algorithm and a third algorithm correspondingly. When different priority conditions are met, different modules determine the current insulin infusion information. Therefore, the closed-loop artificial pancreas insulin infusion control system can automatically switch control units according to different situations, so as to avoid affecting the user experience and even bringing security risks to users when a module set with the control unit cannot work normally.