ABSTRACT
This paper presents a design of multifunctional portable automated external defibrillator based on STM32F103VC SCM. The defibrillator mainly realizes the defibrillation and ECG analysis function, and according to the clinical actual need, increases information storage and transmission function, query of local records, the function of synchronous LCD display and voice prompt in the defibrillation process. The device uses the defibrillating electrodes to measure body resistance, ECG and so on. We detailedly researched and achieved the discharge module of biphasic defibrillation apparatus based on the damping of two order discharge circuit, and finished the real-time LCD display and voice prompt modules of defibrillation information based on the control of PIC24FJ256DA210 chip.
Subject(s)
Automation , Defibrillators , Electric Countershock , Electrodes , Equipment DesignABSTRACT
Through forty years' sustained efforts in the prevention and treatment of malaria in Zhejiang Province, the malaria incidence dropped from 76. 65k in the Fifties to 0. 91 in the Eighties. Three malaria epidemics emerged in 1954 ,1962 and 1973, respectively, among them the epidemic in 1962 was the most serious one with 0. 88 million cases reported and an incidence of 330. The annual incidence of the overall counties/cities was below 1 after 1988. Only 172 malaria cases were found in 1992, the incidence being 0. 04. No indigenous malaria case was found in 38 counties in 1992, accounting to 43. 7% of the total malaria endemic counties. The number of imported malara cases was 3 829, amounting to 89. 2 % of the total number of cases. Through the spot-check of the Ministry of Public Health in 1993, it was confirmed that the criteria of basic elimination of malaria in the province was attained.