Glucose Infusion Connector Pair Detection for Safe Priming
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Solution Overview
Problem
Existing glucose regulation systems for diabetes patients, such as artificial pancreas systems, face challenges in ensuring that the device is not in a medium flow connection with the body during the priming process, which can lead to infusion of air or substances into the body, compromising safety and convenience.
Innovation Solution
The system is designed to detect the formation of specific pairs between connectors, such as second and third connectors, and only allow the priming function to proceed if these pairs are formed, ensuring that the infusion means cannot be in a configuration to infuse substances or air into the body, thereby preventing medium flow connection during priming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the priming function is performed without connector pair detection, then the priming process can be executed quickly and simply, but air or substances may be infused into the body compromising safety
Solution Approach 1:
The system performs connector pair detection before allowing the priming function to execute. The controller checks whether connectors form valid pairs (second connector with third connector) as a preliminary step, and only permits priming when proper pairing is confirmed. This preliminary verification ensures safety without complicating the actual priming process.
Solution Approach 2:
The controller provides feedback about connector pairing status to the user interface, indicating whether connectors are properly paired before priming can proceed. This feedback mechanism guides the user through the connection process and prevents unsafe priming operations, enhancing reliability while maintaining operational simplicity.
2Ease of operation
If the device allows priming without connector pair detection, then the ease of operation is improved, but the risk of medium flow connection with the body increases
Solution Approach 1:
The system applies preliminary anti-action by detecting connector pairs and preventing priming operation until proper connection is confirmed. The controller blocks the priming function when connectors are not properly paired, thereby counteracting the potential harmful effect of accidental medium flow connection before it can occur.
Solution Approach 2:
The connector pair detection mechanism acts as an intermediary between the user's priming action and the actual fluid delivery. The controller mediates the priming operation by verifying connector pairing status, ensuring that the harmful factor (unintended air or substance infusion) is eliminated while maintaining ease of operation through automatic verification.
3Reliability
If connector pair detection is implemented, then the safety during priming is enhanced, but the device complexity increases
Solution Approach 1:
The connector pair detection system performs self-service by automatically verifying connections without requiring manual intervention. The controller autonomously checks whether second and third connectors form proper pairs, eliminating the need for complex manual verification procedures and reducing the perceived complexity for the user while maintaining high safety standards.
Data Source
AI summary
A system for selectively supplying a substance to a person, for regulating the concentration of glucose in the blood of a person, includes a device for selectively supplying a substance which includes a port for connecting to a transport element, and a controller for controlling the device, an infusion set including an infusion element comprising a first connector for connecting to a second connector of the transport element, and a transport element including second and third connectors. The following parts of the system can form at least one pair: the infusion elements; the second connectors; second connector with said or a respective third connector; or combinations thereof. The device can detect and/or be inputted with information indicating the pair is formed, and the controller controls the device such that a priming function can only be performed if detected and/or inputted that said at least one pair is formed.