A passive RFID implant for soft tissue trauma monitoring

This paper presents the design of a passive RFID tag which can be used to monitor patients who have suffered from soft tissue trauma. Such traumas can occur due to road traffic accidents, extensive surgery due to cancer treatment, or shrapnel wounds caused by combat or terrorist attacks. The subcutaneous RFID implant passively monitors the healing rate of the patient and can be used for the early detection of infection. Unlike conventional designs, as the device is biodegradable, there is no need for further post-operative surgery to remove it. The effect of micro-fractures on ring and clover shaped RFID tags are summarized by experimental results.