Research And Design Of Non-invasive Oxygen Saturation Of Blood Monitor

With increment of China's aging population and high incidence of chronic diseasescaused by aging traditional, it's hard for traditional means of medical care to meet people'sgrowing demand for universal health care because of its high price and its insufficiency offunctions. Our country's new health insurance system puts high emphasis on its universalcoverage ,so providing reasonable and fair medical service with limited financial and materialresources for residenters becomes a great need for the national strategy for development of thehuge health care industry. While the international health industry has stepped into new periodcharacterized by personalized medicine care ,the model of medical care has changed from thegoal of curing disease to that of disease prevention, promoting and maintaining a healthytrend. Research of biomedical and medical information technology will develop miniaturized,integrated, digital and intelligent low-cost medical equipment, set up a multi-level health caresystem structures for individuals, families, community and hospital so as to help alleviate thecurrent health care system pressure, and thus further enhance the technological level ofChina's health industry.Therefore,the ultimate goal is to achieve universal health carecoverage.Towards the goal of low-cost health care, a non-invasive pulse oxygen saturation ofblood monitoring system based on the ultra-low power MSP430F149 microprocessor from TIcorporation is designed,which is part of the program of low-cost sports health system basingon the human body sensor networks subsidized by the low-cost health project funding ofChinese Academy of Sciences. Firstly ,I designed the whole technology blueprint andcompleted hardware circuit design, simulation and welding by myself. Then I collected theuseful datas through the singlechip ,and sent these datas to PC systems by serial ports.Andthen,I developed the software interface along with my colleague using Visual C language todisplay the results, and processed the signal by moving average filtering and ellipticfiltering.Finally,the waveform of PPG signals and pulse rate were shown on the softwareinterface by tests of the entire system.What's more,the data captured can also be saved in thetext formatting to do further research.This research and achievements will play a very activepart in promoting the development of clinical health care industry.