Infusion Pump Priming Cap with RFID Verification
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Solution Overview
Problem
Infusion pump systems face challenges in efficiently priming, detecting occlusions, and ensuring proper connection to cannulas, which can lead to unreliable fluid administration and potential errors in medication delivery.
Innovation Solution
The system includes a priming cap with a septum for connecting to a needle and tubing, an RFID chip for connection verification, and a method for performing occlusion alarm checks, ensuring proper connection and preventing fluid administration if the cannula is not correctly attached, along with a removable power supply cover assembly for secure power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual fluid administration is performed by nursing staff, then flexibility in dosing is achieved, but cost and reliability deteriorate
Solution Approach 1:
The infusion pump assembly automatically administers fluid based on programmed parameters, eliminating the need for continuous manual intervention by nursing staff. The system self-regulates flow rates, timing, and dosage while providing alerts for user actions, thereby maintaining dosing flexibility through programmable protocols while significantly improving reliability through automated control.
2Productivity
If priming is performed without occlusion detection, then priming speed is improved, but reliability of fluid administration deteriorates
Solution Approach 1:
The system performs an occlusion alarm check during the priming sequence before full fluid administration begins. A priming occlusion alarm check flag is set to monitor for occlusions during priming, and the system determines whether to generate an occlusion alarm based on this flag and timing parameters. This preliminary detection mechanism ensures reliability is maintained without significantly compromising priming speed.
3Ease of operation
If connection to cannula is not verified, then ease of operation is improved, but reliability of medication delivery deteriorates
Solution Approach 1:
The system employs an RFID verification mechanism where an RFID reader detects the presence of an RFID tag embedded in the cannula connector. When the cannula is properly connected, the RFID tag comes into proximity with the reader, triggering a verification signal. The system provides visual feedback through LEDs to indicate successful verification, and automatically prevents pump operation if verification fails. This feedback mechanism ensures medication delivery reliability while maintaining ease of operation through automatic detection rather than manual verification.
Data Source
AI summary
A system for priming an infusion pump is disclosed. The system includes a priming cap including a septum and configured to matably connect with a male part comprising a needle and attached to a length of tubing for fluid, wherein when matably connected with the male part, the priming cap occludes the tubing.