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

An oscillometric method and a combined technology are applied in the field of sphygmomanometers, which can solve the problems of large measurement errors of oscillometric electronic sphygmomanometers, inconvenient portability of artificial auscultation sphygmomanometers, and difficult operation of Korotkoff sound auscultation, etc. Practical, low cost, strong anti-interference ability

Active Publication Date: 2010-08-25
HARBIN INST OF TECH
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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, a

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

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specific Embodiment approach 1

[0010] Specific implementation mode one : The electronic auscultation sphygmomanometer combined based on the Korotkoff sound method and the oscillometric method of the present embodiment, it consists of a cuff 1, a sound pickup 2, an air pressure sensor 3, a signal processing unit 4, an inflation / deflation unit 5, and a human-computer interaction unit 6 and a microprocessor 7, the cuff 1 has a built-in air bag, and the air bag communicates with the inflation / deflation unit 5 through the air guide tube, and is characterized in that the air bag also communicates with the air pressure sensor 3 through the air guide tube, and the air pressure sensor 3 The pneumatic signal output end is connected to the air pressure signal input end of the signal processing unit 4, the Korotkoff sound signal output end of the pickup 2 is connected to the Korotkoff sound signal input end of the signal processing unit 4, and the signal output end of the signal processing unit 4 is connected to the mic...

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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...

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Application Information

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IPC IPC(8): A61B5/0225A61B7/04
Inventor 李满天邓静王鹏飞
Owner HARBIN INST OF TECH
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