Infusion Pump Reverse Loading Protection via Occlusion Sensor
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Solution Overview
Problem
Infusion systems face errors due to misloading or misconnection of administration sets, leading to over or under infusion, missed treatments, and increased complexity in safety checks, which burdens clinicians and introduces opportunities for human error.
Innovation Solution
An infusion pump with a housing, pumping mechanism, and occlusion sensor that detects reverse loading of tubing, preventing the motor from operating and triggering an alarm if misloading is detected, ensuring proper connection and minimizing human error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual safety checks (line management/line tracing) are performed to prevent misconnection, then patient safety is improved, but clinician time burden and complexity increase
Solution Approach 1:
The infusion pump performs self-checks of the administration set connection through automated sensors and control mechanisms, eliminating the need for manual line management or line tracing by the clinician. The system automatically detects misconnections and prevents operation, thereby maintaining patient safety while significantly reducing clinician time burden.
Solution Approach 2:
Manual mechanical safety checks are replaced with automated electronic sensors and control systems within the infusion pump. The pump uses sensors to detect proper connection and control circuits to prevent operation in case of misconnection, substituting human verification with automated mechanical and electronic systems.
2Adaptability or versatility
If multiple administration sets and medications are used to meet complex patient needs, then adaptability is improved, but error opportunities and complexity increase
Solution Approach 1:
The infusion pump incorporates sensors and control systems that provide continuous feedback on the connection status of administration sets. The system automatically detects misconnections and prevents operation, creating a feedback loop that maintains reliability even when multiple administration sets are used for complex patient treatments.
Solution Approach 2:
Each administration set connection is automatically verified by the pump's sensors, making the system self-verifying. This eliminates dependency on manual checking and reduces human error, allowing complex multi-set configurations to be used safely without increasing error rates.
3Reliability
If automated connection verification is implemented to reduce human error, then reliability is improved, but device complexity increases
Solution Approach 1:
The pump uses its own integrated sensors and control systems to verify connections and prevent misoperation, eliminating the need for external verification devices or additional manual procedures. This self-service approach improves reliability while keeping the added complexity within the pump itself rather than requiring external systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The infusion pump effectively prevents reverse loading and misconnection, reducing human error and ensuring safe fluid delivery by guiding proper connection and operation, thus enhancing patient safety and reducing the time burden on clinicians.
Implementation Method 1
an occlusion sensor configured to detect reverse loading of the tubing to the pumping mechanism
Data Source
AI summary
An infusion pump for transferring fluid through tubing of an administration set connected to the pump, where the pump includes a housing and a pumping mechanism mounted to the housing. The pumping mechanism includes a plurality of pumping fingers, a motor for sequentially, reciprocally moving the plurality of pumping fingers, and an occlusion sensor configured to detect reverse loading of the tubing to the pumping mechanism. In operation, the occlusion sensor causes at least one of a triggering of an alarm and prevention of the operation of the pumping mechanism when the sensor detects that the administration set tubing is reverse loaded to the pumping mechanism.