Closed-Loop Insulin Pump Control Using Continuous Glucose Monitoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing insulin delivery systems for diabetes management are prone to inaccuracies, risking hypoglycemic and hyperglycemic events due to manual insulin dosage determination, which can be life-threatening and lead to long-term health complications.
Innovation Solution
A closed-loop control system incorporating a medical fluid pump, continuous analyte monitor, and controller that adjusts insulin delivery based on real-time data from sensors such as continuous glucose monitors, accelerometers, and inertial measurement units to maintain optimal blood glucose levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual insulin dosage determination is used, then device complexity is reduced, but measurement precision and reliability of blood glucose control deteriorate
Solution Approach 1:
The system implements a closed-loop feedback mechanism where continuous glucose monitor data is automatically fed to the controller, which adjusts insulin delivery rates in real-time based on measured glucose levels, eliminating manual dosage determination while maintaining system safety and accuracy
Solution Approach 2:
The insulin pump system performs self-adjustment of delivery parameters by automatically processing glucose measurements and calculating appropriate insulin dosages without requiring manual intervention from the patient, thereby improving precision while keeping the interface simple
2Device complexity
If manual insulin dosage determination is used, then device complexity is reduced, but reliability of diabetes management deteriorates
Solution Approach 1:
The closed-loop system continuously monitors glucose levels and automatically adjusts insulin delivery to maintain target glucose ranges, providing reliable diabetes management by eliminating human error in dosage calculation and response timing
Solution Approach 2:
The system replaces manual mechanical processes (handwritten dosage records, manual pump adjustments) with automated electronic control that continuously processes sensor data and adjusts delivery parameters, significantly improving reliability
3Measurement precision
If closed-loop control system with continuous monitoring is implemented, then measurement precision and reliability improve, but device complexity increases
Solution Approach 1:
The system merges multiple functions (continuous glucose monitoring, data processing, insulin delivery control, and patient interface) into an integrated closed-loop platform, where components communicate through standardized protocols, managing complexity through functional integration
Solution Approach 2:
The controller serves multiple functions simultaneously: processing sensor data, calculating insulin dosages, controlling pump delivery, and providing user interface management, thereby achieving high measurement precision and reliability while consolidating system complexity into a single multi-functional unit
Data Source
AI summary
A system for at least partial closed-loop control of a medical condition is disclosed. The system includes at least one medical fluid pump. The medical fluid pump including a sensor for determining the volume of fluid pumped by the pump. Also, at least one continuous analyte monitor, and a controller. The controller is in communication with the medical fluid pump and the at least one continuous analyte monitor. The controller includes a processor. The processor includes instructions for delivery of medical fluid based at least on data received from the at least one continuous analyte monitor.