ABSTRACT
Objective:To develop a reflection-type blood oxygen monitor module can transmit message by a new wireless sensor and be used as a terminal monitoring node in wearable devices.Methods: The blood oxygen algorithm is mathematically analyzed by Lambert Beer law; the terminal schematic diagram of hardware, drive circuit, transimpedance amplifier and filter circuit of sensor NJL5501R are analyzed and designed to use in the module; the software process and algorithm implementation is described by special software; the Fluke INDEX2XLF is used to simulate blood oxygen saturation and determine the Q value and then to establish relevant relationship between blood oxygen saturation and Q value.Results: The module can collect blood oxygen data and transmit them by wireless method. And detection result error was less than 2% when this module was compared with the MINDRAY IPM10.Conclusion: The module achieves the expected effect although it still need be improved in some aspects, such as anti movement interference, miniaturization design and low power consumption.
ABSTRACT
The history of portable medical endoscope was studied,and the key technologies was introduced on five modules of power supply,front-end acquisition,cold light source,back-end processing and wireless transmission.The application of the latest technologies of image sensor,image acquisition circuit,image processing circuit,wireless transmission and etc was analyzed in above key technologies.The developing trend of portable medical endoscope was pointed out.
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Objective:In order to achieve the use of community medical care and branch doctor resources, to provide monitoring of remote diagnosis, providing more convenient, safe and efficient medical service for patients and hospital objective. Methods:Multi parameter remote monitoring system design of special model of WIFI wireless technology, including special new WIFI module, wearable multi parameter telemetry monitor, wireless relay box network and medical monitoring software, testing and data transmission of ECG, respiration, blood oxygen using a wireless network, can the patient monitoring in normal life condition. Results:Whenever and wherever possible the electrophysiological data sent to the hospital, the doctor can according to the electrophysiological data of the patient for remote diagnosis and further treatment. The accuracy of the stability, the reliability of the system and the parameters of the tested strictly, data transmission accurate rate reaches more than 98%. Conclusion: The patients and doctors have been received good feedback, clinical trials, has very practical clinical significance.
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OBJECTIVES: In order to devise the combination module transmitting bio signal and signal data remotely, as defect of wirewireless combination module was complemented by designing a single combination of wireless module and power supply module, a single system was implemented. METHODS: Currently in case of wireless transmission, it had various problems causing by some factors such as buildings, obstruction, and entanglement of wires and so on. In order to overcome problems of wireless transmission, a single combination module design was researched, which transmits vital signal and sign data using basic electric line installed in the inner building or between others. Even though it was also possible of wireless communication and the internet, in case of a power supply without them, it could be possible to transfer data to underground or top ground in the inner building without any special communication line. RESULTS: Bio signal data was transmitted through a power supply line, a noise problem occurred would be solved by the designed noise filter. The filter showed that noise was cut off about more than 90%. It was also confirmed that the used ECG signals was stably received on transmission experiment. An internal PCB antenna could make the system be wireless communication without the disclosure of an antenna. CONCLUSIONS: In this study, in order to implement a useful system transmitting bio signal and data through wire and wireless management for combination design of wireless module and electrical line module, bio signal transmission system was implemented by design of noise break filter circuit to reduce power noise and PCB internal antenna design.
Subject(s)
Complement System Proteins , Disclosure , Electric Power Supplies , Electrocardiography , Internet , Noise , Vital SignsABSTRACT
An audio communication system in field medicine based on wireless transmission is introduced.It mainly comprises MSP430 ultra low-power and 16-bit microcontroller of Texas Instruments and wireless audio streamer nRF24Z1 of Nordic VLSI in Norway.The system realizes the call-and-talk communication between doctors and patients conveniently in one-to-many way in good audio quality and flexible mobility,so that doctors can be timely informed the state of an illness by using it.
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Objective To realize real-time data transmission of multiple remote terminals ECG monitoring.Methods Mutiple ECG collection terminals were used through a wireless local area network which was linked to servers in the data center though WCDMA.Results ECG data real-time acquisition and monitoring were realized in remote ECG real-time automatic diagnosis system based on network computer.Conclusion Acquisition and control of large amount of real-time data are realized.[Chinese Medical Equipment Journal,2008,29(2):18-20]
ABSTRACT
A system adapted for depot management in hospital based on RFID technology is introduced. With resolution of RFID from PHILIPS and RF transmission from Nordic VLSI Norway, the storage of medical materials and medical equipments can be identified, labeled and statistically controlled accurately and expediently. The system can not only save a mass of work force, but also improve work efficiency.