Zigbee wireless physiological monitor application for patient of safety

[[abstract]]Critically ill and postoperative cancer patients who are receiving radiotherapy may need to use the physiological monitors to observe their physiological conditions in real time. Once the monitored signal was watched through the monitor system in the console room, the background light of physiological monitors can lower the image contrast of display, which can be a practical problem for clinical staffs. In this study, we combined wireless communication and sensing technology by using the Zigbee wireless physiology monitor to improve the influence of background light coming from monitor screen. The developed wireless sensor physiological monitor was installed in a treatment room for radiotherapy. The terminal device of the wireless sensor is a SpO2 transducer, which adopts the Zigbee chip micro-controller unit to transmit transducer’s signal to a router. Then, the router pass immediately the data of SpO2 transducer to PC (personal computer) through a connection of PAN (Personal Area Network) and a non-synchronized transmitter interface (RS232) between PC and SpO2 transducer. Our results demonstrate that the use of Zigbee wireless network can clearly display patient's physiological data such as heart rate and pulse in console room. This device helps when the patient has shock in the treatment room can be rescued immediately. This action can substantially ensure patients’ safety in real time. The patient safety takes an extremely important emphasis in the present medical policy. The application of wireless physiological sensory element is able to help patients situated in radiotherapy room or the negative pressure isolation ward, and so on where are not easy to use the physiological monitors to monitor their vital sign and reinforce patient’s safety