An infusion monitoring system and method based on UHF RFID reading frequency

Abstract

The invention discloses an ultra-high frequency RFID (Radio Frequency Identification Device) reading frequency-based transfusion monitoring system. The system comprises RFID tags arranged at outer surfaces of transfusion bottles, an antenna, an RFID reader and a data processing unit, wherein the antenna is used for outwards radiating electromagnetic waves, receiving RFID tag signals reflected by the RFID tags and sending the signals to the RFID reader; the RFID reader is used for feeding back the read RFID tag signals to the data processing unit in real time; and the data processing unit is used for judging whether the liquid levels in the transfusion bottles are lower than the positions of the RFID tags or not according to the RFID tag signals and according to the judgment method as follows: when the actual reading rate of the RFID reader is greater than 80% of the maximal reading rate of the RFID reader, the liquid levels are judged to be lower than the positions of the RFID tags.

Description

technical field [0001] The invention relates to the technical field of UHF RFID, in particular to an infusion monitoring system and method based on UHF RFID reading frequency. Background technique [0002] During the infusion process in the hospital, if the infusion bottle is not replaced in time after the liquid medicine is infused, it will cause adverse consequences such as blood return or even blood coagulation. In severe cases, air may enter the blood vessel and endanger life safety. Therefore, it is very important to monitor the patient's infusion status in real time and know whether the liquid medicine is about to be infused. However, at present, in hospitals, patients or their companions are generally relied on for monitoring, and a few private hospitals or advanced wards are monitored by nurses or nurses. Manual monitoring is not only costly, but also difficult to monitor the infusion status in real time, so it is very likely to miss the opportunity to remind medica...

AI Technical Summary

Problems solved by technology

However, the existing scheme only utilizes the identification function of RFID technology, and its purpose is to assign a unique identification number to the infusion bottle through the RFID tag, thereby establishing a one-to-one mapping relationship between the infusion bottle and the patient. The key technology to truly detect the liquid level still relies on the above two sensor methods

In addition, most of these methods focus on redesigning, modifying and customizing the infusion bottle, making the monitoring costly and not very scalable

Images