【作者】 赵号雨；

【导师】 王剑钢；

【作者基本信息】 吉林大学 ， 生物医学工程， 2006， 硕士

【摘要】 血压是反映人体健康状况的一个非常重要的生理参数,血压的准确测量对高血压病人的分类、探查血压相关的危险以及指导治疗都是必要的。目前医学界公认只有柯氏音水银柱血压计可以精确测量血压值,但它有许多的弊端,不利与对广泛的人群实现血压自测,此时电子血压计应运而生。本论文所设计的血压检测系统是建立示波法的基础上而成的,它之所以能替代柯氏音水银柱血压计是因为两者在经过大规模的实验测量之后,平均值较为接近。但对个体来说,血压值测量的差别是相当大的。鉴于示波法所存在的一些弊端,而脉搏波速与血压之间又有一定的相关性,所以系统通过引入测量脉搏波速的方法来弥补示波法的一些缺陷,这样可以根据脉搏波速的变化来时时跟踪血压值的变化情况。论文对系统的硬件电路部分的设计、信号的处理方法、及其软硬件系统的架构做了详细描述,同时记录了一些在调试过程得到的相关数据。更多还原

【Abstract】 Blood pressure is an important parameter in clinical diagnoses, ICU and basic physic investigation. If control blood pressure in a suitable range can not only reduce the incidence of coronary heart disease, cerebrovascular disease, but also stay the impair to organic. So it is important for us to know the fluctuation of the blood pressure and the states of patient exactly. Usually we have two manner way to measure the blood pressure. The first is normal measurement, the patient would be measured by the professional person in the medical treatment organization. The second is measure blood pressure at home. The two means have respective merits. But the last has more advantage. As a complement, you will provide the result that you measured at home. At present, there are so much devices we can choose to measure the blood pressure, most hospitals and person use the electronic blood-pressure meter based on oscillometric method, but usually its result were not precision. Herein, we improve its property by integrate the oscillometric method and PWV.The thesis put the emphasis on circuits design, architecture of software and algorithms program.First, the thesis introduce that the physiological parameters be measured are different form those in industry, such as physical and chemical parameter measurement, It has the characteristic itself. Meantime we explain the adverse influence, and how to deal with them. These are helpful in the design later.Second, in the thesis we described the oscillometric method and PWV as the primary gist, The oscillometric method relies on detection of variations in pressure oscillations due to arterial wall movement beneath an occluding cuff. Empirically derived algorithms are employed, which calculate systolic and更多还原