Frangible RFID Syringe Cap for Automated Tamper Tracking
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Solution Overview
Problem
Existing syringe assemblies lack effective tamper detection and tracking mechanisms that are cumbersome, prone to human error, and increase production complexity and costs, while existing technologies for tampering prevention and material tracking are not automated.
Innovation Solution
A syringe assembly with a tamper evident cap and RFID tag that includes a frangible connection and an RFID tag for data storage and communication, allowing for automated tamper detection and tracking without altering the syringe's design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing tamper detection devices are added to syringes, then tamper detection capability is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The RFID tag is integrated within the tamper evident cap structure, nesting the identification function inside the existing cap design. This allows tamper detection and RFID tracking to coexist without requiring separate external devices, thereby improving reliability while controlling complexity
Solution Approach 2:
The tamper evident cap is designed to serve multiple functions: physical tamper detection through the frangible connection and automated identification/tracking through the RFID tag. By combining these functions into a single component, the system improves overall reliability without proportionally increasing device complexity
2Ease of manufacture
If manual control and monitoring are used for tracking medical devices, then implementation simplicity is maintained, but human error increases and automation is lost
Solution Approach 1:
The RFID tag automatically identifies and tracks the syringe assembly without requiring manual scanning or data entry by medical staff. The system serves itself by providing automated identification and tracking capabilities, reducing human error while maintaining ease of use through simple proximity-based detection
Solution Approach 2:
Manual tracking methods are replaced with automated RFID technology. The electromagnetic field-based RFID system substitutes for mechanical/manual tracking processes, enabling automated monitoring while maintaining simplicity through contactless, rapid identification
3Reliability
If tamper evident cap is designed with frangible connection, then tamper detection reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The tamper evident cap is segmented into two parts: a proximal end that remains attached to the syringe and a distal end that can be removed. The frangible connection creates a predetermined break point, allowing the cap to be opened for refilling while maintaining tamper detection reliability. This segmentation simplifies manufacturing by using standard molding techniques for separate components
Solution Approach 2:
The frangible connection is pre-designed with a predetermined break point during manufacturing. This preliminary action of creating a weak point in the structure allows for easy future opening while ensuring reliable tamper detection, as the break point is already established before the product reaches the user
4Measurement precision
If RFID tag is integrated into syringe assembly, then tracking precision is improved, but device complexity increases
Solution Approach 1:
The RFID tag is merged with the tamper evident cap and syringe assembly components rather than being a separate attached device. This integration achieves precise tracking by having the identifier physically part of the assembly, while controlling complexity through consolidation of functions into existing structural elements
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
Provides reliable tamper detection and tracking capabilities, reducing human error and manufacturing complexity while maintaining the syringe's functionality and reducing production costs.
Implementation Method 1
The frangible connection is configured to break under a force applied to the distal end of the tamper evident cap such that the proximal end of the tamper evident cap is configured to remain engaged with the syringe when the frangible connection breaks
Implementation Method 2
The RFID tag includes an integrated circuit, configured to store electronic information thereon, and an antenna operatively connected to the integrated circuit and configured to receive a signal from an RFID reader to cause transmission of the electronic data to or from the integrated circuit
Data Source
AI summary
A syringe assembly includes a syringe with a tamper-evident cap over the Luer connection. The cap has a proximal end with an opening, a distal end, and a frangible connection between them. The frangible connection breaks under force, leaving the proximal end engaged with the syringe. An RFID tag on the syringe communicates with an RFID reader.