(1) In conclusion, ABI measured using the automated oscillometric method can be used to predict the severity of coronary atherosclerosis in patients with CAD.

(2) It also analyses the characteristics and advantages of oscillometric method as well as introduces a noninvasive blood pressure measurement monitor based on oscillometric .

(3) The traditional blood pressure measurement by oscillometric method is based on statistics theory, so there is always private systematic error in measurement.

(4) The effect of pressure sensor, filter and blood pressure algorithm upon oscillometric method is discussed in this paper.

(5) In the software design, this paper, analyzing the native records of cuff pressure during BP measurement, developed two methods to improve the oscillometric blood pressure measurement.

(6) This paper presents a pressure oscillation detection technique for automatic measurement of blood pressure by the oscillometric method.

(7) Recently, a new clinical device has been developed to measure ABI using an oscillometric method.

(8) The firmware flow of the blood pressure algorithm based on the oscillometric method is also presented.

(9) This paper describes a type of blood pressure monitor we have developed using 8031 chip microprocessor based on oscillometric method and the designs of hardware and software.

(10) The main works in this paper are as follows:(1) Consult the coherent literature, research the oscillometric technique, the model of Windkessel , pulse-wave theory and electrical impedance theory.