Shanghai ShangDa Medical Instrument Co., Ltd, formery know as Shanghai University-run enterprises, was founded in the end of 1990, is currently holding limited scientific and technical personnel. Nanhui branch of the company&＃039;s is large production and assembly base . Under the leadership of Cui Kaihai professor of theoretical physics, many reserch ers from Shanghai University, Huadong teacher-training University began to innovate and develop, let the company became famous for innovative enterprises. The innovat ion of the company mainly focus on two problems:1, Stethoscopy is not reliable if entirely dependent on subjecti on, the theory defects of the O scillo graphy we can not use, how can we accurately measure blood pressure? 2, mercury phygmomanometer which had been used for about 100 years was baned one after the other , how creat the substitute goods ? Reading -assistant sphygmomanometer and showing-light sphygmomanometer is tipical new product that successful resolve these two problems. Reading -assistant sphygmomanomenters and their extended follow-up product development to achieve the following three for the first time:the first time to make human blood pressure measurement objective , accurate , reliable , and for the first time so that the human blood pressure measurement can be traced back , for the first time so that human beings can create electronic medical records of blood pressure measurement. Showing-light sphygmomanometer uses facula to show the readings, color bright; accuracy up to ± 2mmHg , the world&＃039;s highest levels ; products non-toxic harmless, the whole current is around 30mA , achieve environmental protection, low-power full usability. The Korotkoff sound method electronize of our company willl be a branded of the measurement of the blood pressure and the new creation of the showing-light sphygmomanometer will be an ideal substitute .