Extracorporeal Circulation Pressure Sensor Mapping Verification
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Solution Overview
Problem
The correspondence relationship between the position where pressure is measured and the pressure value in extracorporeal circulation systems is often incorrect due to incorrect cable connections, leading to potential damage to the human body during blood extracorporeal circulation.
Innovation Solution
A method and system that determine the correctness of the correspondence relationship between pressure values and positions by acquiring pressure values from multiple sensors in the extracorporeal circulation path, using a control device or observation device to identify and correct any discrepancies before blood circulation begins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are used to measure pressure at different positions, then measurement precision is improved, but device complexity increases due to multiple cables and connection parts
Solution Approach 1:
The system automatically checks the correspondence relationship between sensor positions and pressure values, and provides feedback when mismatches are detected. The control device compares expected pressure relationships with actual measurements and alerts operators to connection errors, enabling self-diagnosis without increasing physical complexity.
Solution Approach 2:
The system performs self-verification of sensor connections by automatically checking whether measured pressure values correspond to their expected positions based on physiological principles. The system serves itself by detecting and alerting connection errors without requiring external verification procedures.
2Ease of operation
If cable connections are simplified for ease of operation, then ease of operation is improved, but reliability decreases due to increased risk of incorrect connections
Solution Approach 1:
The system performs preliminary verification of cable connections by checking whether the pressure values from connected sensors correspond to their expected positions before allowing operation. This preliminary check ensures that even if connections are made easily without complex procedures, their correctness is verified beforehand.
Solution Approach 2:
The system takes preliminary anti-action by detecting and preventing incorrect cable connections before they can cause harm. By comparing pressure measurements against expected physiological relationships, the system blocks operation when connection errors are detected, counteracting the risk introduced by simplified connection procedures.
3Reliability
If pressure monitoring is enhanced for safety, then reliability is improved, but loss of time increases due to additional verification steps
Solution Approach 1:
The system performs automatic self-verification of pressure sensor connections using built-in physiological knowledge. Instead of requiring manual verification procedures that consume time, the system autonomously checks whether pressure measurements are consistent with expected relationships, providing safety without significant time loss.
Solution Approach 2:
The system provides immediate feedback on connection correctness through automatic comparison of measured pressures with expected values. This real-time feedback mechanism enables rapid verification without requiring time-consuming manual checks, as the system continuously monitors and alerts only when errors are detected.
Data Source
AI summary
A method, an extracorporeal circulation system, and an information processing method preventing extracorporeal circulation from being performed in a state where a correspondence relationship between a position where pressure is measured and a pressure value is incorrect. The method acquires a pressure value measured by each sensor from a plurality of the sensors that measure blood pressure at a plurality of positions in an extracorporeal circulation path that performs extracorporeal circulation of blood, and determining, on the basis of the acquired pressure value, whether or not the correspondence relationship between the pressure value and the position where the blood pressure is measured is correct.