Blood Processing System Error Detection and Correction
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Solution Overview
Problem
Existing blood processing systems lack effective monitoring and correction mechanisms for defects in disposable fluid flow circuits and installation errors, which can lead to improper system functioning and safety issues.
Innovation Solution
A durable blood processing system with a graphical user interface and controller that detects errors in the fluid flow circuit association and defects, displaying interactive icons to guide the operator in moving clamps from a closed to an open condition to allow fluid flow, thereby enabling correction of installation errors and preventing unsafe conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional alarm system is used to detect installation errors, then error detection capability is provided, but the system complexity increases and operator burden increases due to non-intuitive alerts
Solution Approach 1:
The system continuously monitors tubing installation status and provides real-time visual feedback through color-coded indicators and icons. Sensors detect whether tubing is properly connected and display this information intuitively on the graphical user interface, allowing operators to immediately understand system status without interpreting complex alarm codes.
Solution Approach 2:
The graphical user interface acts as an intermediary between the complex sensor network and the operator. It translates raw sensor data into intuitive visual representations including color-coded icons, animated sequences, and step-by-step guidance, simplifying the interaction between the operator and the complex monitoring system.
2Reliability
If traditional alarm systems are used, then error detection is possible, but ease of operation deteriorates due to non-intuitive alerts and lack of guidance
Solution Approach 1:
The system provides immediate visual feedback about installation status through color-coded indicators (green for correct, red for incorrect). When errors are detected, the system displays animated sequences and icons that guide operators through correction steps, making the system intuitive and easy to operate.
Solution Approach 2:
The system automatically guides operators through error correction procedures without requiring external assistance. The graphical user interface displays step-by-step instructions and monitors correction progress, enabling operators to independently resolve installation errors.
3Reliability
If real-time monitoring is implemented, then safety is improved by detecting errors immediately, but device complexity increases due to additional sensors and control mechanisms
Solution Approach 1:
The graphical user interface serves multiple functions: it displays system status, provides error detection, guides correction procedures, and confirms proper installation. This multi-functional approach consolidates what would otherwise require separate systems into a single integrated interface, reducing overall complexity.
Solution Approach 2:
Sensors provide continuous feedback about tubing installation status, and the system automatically responds by displaying appropriate visual indicators and guidance. This closed-loop feedback mechanism enables real-time safety monitoring while maintaining simplicity through automated responses rather than complex control logic.
4Ease of repair
If automated error correction guidance is provided, then ease of repair is improved, but device complexity increases due to interactive interface requirements
Solution Approach 1:
The system monitors correction actions in real-time and provides feedback through visual indicators that change as corrections are made. Animated sequences and icons guide operators through each correction step, and the system confirms when errors have been resolved, making repair intuitive despite the sophisticated interface.
Solution Approach 2:
The graphical user interface mediates between the complex error correction processes and the operator. It translates sensor data and system state into simple visual instructions, and translates operator actions into system commands, simplifying the repair process while managing interface complexity.
Data Source
AI summary
A system is provided for processing blood from a blood source. The system cooperates with a disposable fluid flow circuit including a tubing line that is associated with a clamp of the system. The system also includes a sensor and a controller, which cooperate to determine whether the fluid flow circuit and/or the system itself is defective and/or if the fluid flow circuit has been installed onto the system improperly. If such an error or defect exists, then the controller determines whether a selected system state exists. The controller causes a change in the appearance of the display of the system, which includes displaying an interactive icon if the selected system state exists. The icon, when manipulated, causes the clamp to move from the closed condition to an open condition.