RFID NEWS

UK hospital uses RFID technology to track patient sample data

British Hospital tracks patient sample data through RFID technology


In order to better manage tissue samples in patient cases, the hospital decided to introduce RFID technology to build a real-time tracking system. As an important medical institution under the National Health Insurance System (NHS) of the United Kingdom, Leeds Teaching Hospital handles thousands of cancer cases every year. According to relevant data from the University of Leeds, the hospital receives 60,000 cancer cases each year, generating more than 250,000 sample blocks and nearly 1 million slices. Such a large number of samples makes traditional tracking methods seem incapable. Traditional tracking systems can often only provide historical information on the location of samples, but cannot grasp their current location in real time, and are prone to sample loss due to human error.


The RFID system achieves continuous tracking of samples by installing customized RFID electronic tags, RFID Antennas, and RFID Readers throughout the hospital department. By adding customized tags with RFID technology to the boxes containing samples and installing antennas and readers throughout the hospital department, the hospital can achieve continuous monitoring and real-time tracking of samples. This not only improves the visibility and safety of samples, but also reduces the occurrence of human errors.


Dil Rathore, a biomedical scientist and pathology innovation at Leeds Teaching Hospitals, said that the RFID system not only prevents sample loss, but also speeds up processing and improves service efficiency. He explained: "The stress and anxiety felt by patients waiting for a potential cancer diagnosis may be made worse if they are told that their samples have been lost. Unfortunately, this 'never happens' happens more often than is acceptable. Therefore, we introduced a real-time system to track the precise location of each sample and its movement in the histopathology department."


Evaluation of the impact of embedded RFID tags on the strength of composite laminates


Recently, the internationally renowned journal "Composites Science and Technology" published a research result on the evaluation of the impact of embedded RFID tags on the strength of composite laminates completed by a research team from the University of Parma, Italy, Delft University of Technology, and Dallara Automobile. The study aims to evaluate the impact of RFID tag embedding on the static strength and failure mode of CFRP composites, which helps to understand the impact of RFID tag embedding on the performance of CFRP composites and provide a reference for the design and application of CFRP composites.


Embedding RFID tags significantly reduces the strength of CFRP laminates and causes multiple failure mechanisms to occur simultaneously, including matrix cracking, fiber/matrix interface debonding, debonding, and fiber failure. The occurrence of these failure mechanisms is related to stress concentration around the tag and material interface characteristics, and their impact needs to be reduced by strengthening the design and optimizing the manufacturing process.


Cured CFRP specimen with embedded tags: a, back; b, front; c, cross section


The study found that the embedding of RFID tags led to a reduction in strength and a change in the failure mode, mainly manifested in early CFRP/Kevlar interface peeling, final damage to the corner of the CFRP front layer "window" caused by stress concentration, and the extension of delamination. The damage patterns observed by DIC and OM are consistent with the results of C-scan and AE analysis, indicating that delamination and fiber breakage are the main failure mechanisms, and these failure mechanisms are simultaneously active when reaching more than 50% of the maximum load. These findings provide important experimental data and theoretical basis for the design of composite structures with embedded RFID tags.


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