The Study And Realization Of The Infusion Wireless Control/Monitoring And Information Management System

The infusion is still present a commonly used medical method but objectively speaking, there are some limitations. At present some infusion surveillance apparatus take effect in application, but with the network and wireless technology rapidly development, it need to invent the more effective digitization device at this moment. The infusion wireless Control/Monitoring and information management system can achieve information process automation control of the infusion to patients, the main function: (1) of distributed master-slave station design, the realization of the monitor with the central data wirelessly between PC, remote centralized monitoring. (2) precise settings to regulate the drip rate, and real-time display. (3) infusion or abnormal end, the issue at the central control room sound and light alarm, and automatically block the liquid. (4) information management system by installing the PC, to provide a friendly human-machine interface to realize the central infusion of medical records and patient monitoring, drug information management and printing.The infusion system consists of a PC and some monitors, all of which make up a infusion monitor network. The PC and the monitors communicate with the wireless, and the software for PC carries on the real-time monitor to each infusion process, simultaneously.In order to upgrade the existing PC to have wireless capability, a new device class called Wireless Adapter is defined. A Wireless Adapter connects to the PC and allows the monitors to be connected to the PC with wireless. The Wireless Adapter connects to PC through the RS-232 connector. The Wireless Adapter use the MSP430F169 which is a ultra low power, high capability microcontroller and the nRF905 transceiver which is a true single chip UHF transceiver designed to operate in the 433MHz ISM(Industrial, Scientific and Medical) frequency band. In the Wireless Adapter, we as far as possible use the electronic device with low price and high capability, high reliability, high integration rate, wide adaptation temperature range, and strong ant-jamming ability. We had fully considered its resistance to jamming and the reliability when designed the printing circuit board and the firmware.Such as the spatial noise and the transmission route and so on, many kinds of factors influence the infusion Control/Monitoring System that some kinds of transmission protocol which ensure the reliable data connection on this unreliable physical link is needed.The infusion monitoring software system can monitor each infusion process conveniently. It is designed to preserve the infusion records. The software system can be operated easily and looks friendly. This software system can manage the patient's basic information, the infusion records, the data security and the medicine information and so on. It also provides the inquiry and printing functions. It is more conveniently and automatically in infusion management.The research of the information management System solved the shortcoming of difficult to fix the cables and limitation in data management. It has laid the solid foundation for the digitization and the modernization of the infusion process monitoring.