System And Method For Leak Detection In A Medical Injection Device Having A Rfid Tagged Needle Shield

Abstract: Provided herein is a system for detecting needle shield piercing in RFID-tagged medical injection devices. The system includes a conveyor system configured to convey the injection devices along a conveying path, a RFID coupling element positioned at a reading location along the conveying path, a RFID reader configured to perform a singulated reading of the RFID tag of each injection device upon passing the RFID coupling element, and a processor coupled to a memory and configured to record, for each RFID tag read by the RFID reader, a carrier power of a signal transmitted from the RFID coupling element to the RFID tag needed to generate a backscattered signal response from the RFID tag, compare the carrier power to a specified reference carrier power threshold and, if the recorded carrier power is greater than the reference carrier power threshold, identify the respective injection device as having a pierced needle shield.

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