RFID Interrogator Panel for Automated Infusion Pump Programming
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Solution Overview
Problem
Current medical infusion systems face challenges in ensuring that the correct medication is administered to the right patient through the right pump, particularly in environments with multiple infusion conduits and pumps, where manual scanning of bar codes can lead to errors and is time-consuming, and there is a need for a more automated and reliable system that reduces the risk of incorrect data entry and conduit misconnection.
Innovation Solution
A wireless, non-optical medication safety system that uses RFID technology to read information from medication containers mounted on a panel above the infusion apparatus, automatically verifying that the correct medication is connected to the correct pump channel by comparing patient and drug identification information and programming parameters, and providing alerts for any discrepancies in delivery parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual bar code scanning is used to identify medication and program infusion pumps, then the system can provide automated programming instructions, but the process requires considerable effort and time from clinicians to scan multiple bar codes and is prone to human error
Solution Approach 1:
The system divides the identification process into segments: each medication container has its own unique RFID tag, and the panel has multiple RFID readers positioned at different locations. This segmentation allows parallel reading of multiple tags simultaneously, eliminating the sequential bar code scanning process and reducing clinician effort and time.
Solution Approach 2:
RFID tags are pre-attached to medication containers with all necessary identification and programming information encoded before the clinical procedure. This preliminary encoding of data eliminates the need for manual data entry or multiple scanning steps during the infusion setup process.
2Adaptability or versatility
If multiple infusion conduits and pumps are used to administer multiple medications, then comprehensive patient treatment is achieved, but the complexity of matching the right conduit to the right pump increases the risk of misconnection and error
Solution Approach 1:
The system provides automatic feedback by reading RFID tags on all medication containers, comparing the container positions with the infusion pump configurations, and verifying matches between conduits and pumps. This automated feedback mechanism eliminates manual verification and reduces the risk of misconnection in multi-conduit setups.
Solution Approach 2:
The patent replaces manual mechanical matching of conduits to pumps with an automated electromagnetic RFID identification system. The RFID readers automatically detect and identify each container, and the system electronically matches conduits to pumps based on positional data, eliminating human error in the matching process.
3Loss of information
If bar code labels are used on medication containers, then identification information can be provided, but the labels can become wet or obscured with medical fluids making them unreadable by bar code scanners
Solution Approach 1:
The system replaces optical bar code labels with electromagnetic RFID tags that are embedded in or attached to the medication containers. RFID tags are not affected by moisture or obscuration, allowing reliable wireless reading of medication identification information even in wet clinical environments where bar code scanners would fail.
4Ease of operation
If clinicians manually program infusion pumps with pumping parameters, then flexibility in programming is maintained, but the risk of incorrect data entry increases
Solution Approach 1:
The system enables self-service programming where the infusion pump automatically receives and configures pumping parameters by reading them from the RFID tag on the medication container. This eliminates manual data entry by the clinician while maintaining the ability to program the pump with drug-specific and patient-specific parameters stored in the RFID tag.
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 system significantly reduces the risk of medication errors by automating the infusion setup process, ensuring that the right drug is administered to the right patient at the right time with the correct dose and infusion rate, while minimizing the need for manual scanning and reducing the complexity of managing multiple infusion conduits.
Implementation Method 1
a reader located at the panel configured to wirelessly read the information device and to provide an information signal representative of the information contained in the information device
Data Source
AI summary
A medication safety system includes a panel mounted to an IV pole above a multi-channel infusion pump also mounted to the IV pole. The panel includes multiple RFID readers for reading the RFID tags placed on each of the medication containers mounted to the panel. The pump includes a controller that communicates with the RFID readers at the panel to receive the information read by the RFID readers and automatically program the respective pump channel. A verification program verifies that the medication delivery information from the containers matches the patient identified for the pump and the programming parameters of the pump fall within acceptable ranges. In another aspect, the panel contains multiple vibration devices to impart vibrations to the medication of each of the containers mounted to the panel. Those vibrations are sensed by the particular pumping channel to confirm that the correct channel has been programmed for that medication. When the clinician opens the door of the pumping channel, the pump may request information from the RFID reader at the panel for that medication and may wait for receipt of the vibrations in the medication of the tubing mounted into the channel.