Electronic auscultation sphygmomanometer based on combination of Korotkoff sound method and oscillometric method

Abstract

The invention relates to an electronic auscultation sphygmomanometer based on combination of a Korotkoff sound method and an oscillometric method, solving the following problems: the manual auscultation sphygmomanometer is not convenient to carry, and Korotkoff sound auscultation is not easy to operate and is easily affected by the environment. The electronic auscultation sphygmomanometer comprises a cuff with a bladder inside, a sound pickup, an atmospheric pressure sensor, a signal processing unit, an inflation / deflation unit, a human-machine interaction unit and a microprocessor, wherein the microprocessor controls the inflation / deflation unit to inflate or deflate the cuff; after the atmospheric pressure signal obtained by the atmospheric pressure sensor and the Korotkoff sound signal obtained by the sound pickup are processed by the signal processing unit, the microprocessor firstly works out the range of the blood pressure by the oscillometric method, then searches for the Korotkoff sound signal in the range by a thresholding method to obtain the final blood pressure and finally controls the human-machine interaction interface to display the result. The sphygmomanometer can simultaneously ensure stability and precision of the measuring result and can be used in the blood pressure measurement field.

Description

technical field [0001] The invention relates to a sphygmomanometer. Background technique [0002] At present, hypertension has become an important factor endangering public health all over the world, and the number of hypertensive patients in my country is as high as 13% of the total population of our country, most of whom are middle-aged and elderly people. Hypertensive patients need to measure blood pressure frequently so as to take antihypertensive drugs reasonably for treatment. Therefore, convenient and accurate blood pressure measurement is the key to the diagnosis and treatment of hypertension. [0003] Existing sphygmomanometer mainly contains two classes, and a class is the artificial auscultation type sphygmomanometer widely used in hospital, and another kind is the oscillometric electronic sphygmomanometer widely used in family. [0004] Manual auscultation sphygmomanometers are mainly divided into mercury column (mercury column) sphygmomanometers and pointer sph...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems that the artificial auscultation type sphygmomanometer is inconvenient to carry, the Korotkoff sound auscultation method is difficult to operate, and is easily affected by the environment, and the problem that the oscillometric electronic sphygmomanometer has a large measurement error, and provides an electronic sphygmomanometer based on Korotkoff sound. An electronic auscultation sphygmomanometer combining sound method and oscillometric method

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