Infusion Pump Barcode Cassette Verification
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Solution Overview
Problem
Conventional infusion pumps rely on user input, which is prone to human error, leading to potential adverse events due to incorrect decimal inputs for flow rates during medication delivery.
Innovation Solution
The integration of a barcode system on the tube cassette that encodes fluid delivery specifications, allowing the infusion pump to automatically read and verify these specifications, reducing the risk of human error by separating user input from critical control parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual user input is used for flow rate configuration, then the infusion pump requires simple operation interface, but human error in decimal input leads to incorrect flow rates
Solution Approach 1:
The patent introduces a barcode as an intermediary carrier that stores the correct flow rate information. Instead of directly inputting flow rate parameters, the system uses the barcode on the infusion fluid container as a mediator to transfer the correct flow rate data to the pump, eliminating manual decimal input errors while maintaining simple operation through barcode scanning.
2Reliability
If barcode system is implemented for automatic reading, then flow rate accuracy is improved, but device complexity increases due to additional components
Solution Approach 1:
The patent uses a barcode (a simplified copy or representation) to store and transfer the essential flow rate information. Instead of implementing a complex direct digital communication system between the infusion fluid container and the pump, the barcode serves as a lightweight copy that contains the necessary parameters, significantly reducing system complexity while maintaining accuracy.
3Reliability
If user interface controls are removed for safety, then human error is reduced, but user ability to correct mistakes is diminished
Solution Approach 1:
The patent implements a feedback mechanism where the system displays the flow rate information read from the barcode on the user interface for verification. The user can see what the system has read and confirm or reject it, providing a feedback loop that maintains safety by preventing erroneous input while preserving user ability to correct mistakes through the confirmation interface.
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
This solution significantly reduces the likelihood of human error in infusion pump operations, ensuring accurate fluid delivery by automating the verification of flow rates and other critical parameters, thereby enhancing patient safety.
Implementation Method 1
obtaining an information of a fluid delivery specification from a tube cassette loaded to the infusion pump by scanning an optical label borne on the tube cassette
Data Source
AI summary
A method reads fluid delivery specification from a tube cassette and carry out infusion upon acceptance of the fluid delivery specification. An infusion pump comprises a housing having a compartment into which a tube cassette is receivable; a controller; a label reader disposed in the housing, accessible to the cassette compartment and coupled to the controller; a user interface disposed in the housing and coupled to the controller, the user interface including a screen, a first operator and a second operator coupled to the user interface. The first and second operators provide a first response signal to the controller for a prompt displayed on the screen and a second response signal to the controller for a request displayed on the screen. A tube cassette has a label bearing fluid delivery specification and allows fluid infusion upon the specification in the label matching parameters stored in an infusion pump.