Column display pressure evaluation device

Abstract

The invention discloses a column display pressure evaluation device. The device is characterized by comparing the measurement results of an LED column display type sphygmomanometer and a mercury sphygmomanometer by utilizing a video analysis method and evaluating the static and dynamic results of the LED column display data so as to determine whether the characteristics are close to the characteristics of the traditional mercury sphygmomanometers and meet the requirements of clinical Korotkoff blood pressure measurement, wherein in the evaluation process, the static and dynamic characteristics are graded; the static characteristics include accuracy and stability; and the dynamic characteristic includes following performance. The device is supplement for the current national sphygmomanometer measurement and verification standard.

Description

technical field [0001] The invention relates to a column display pressure evaluation device, in particular to a device for evaluating an LED column display sphygmomanometer by using a video analysis method, and belongs to the technical field of pressure measurement. Background technique [0002] The new LED column display sphygmomanometer is a blood pressure measurement device that uses a piezoresistive pressure sensor to convert air pressure into a voltage signal, realizes pressure measurement through A / D conversion, single-chip temperature compensation and correction, and displays it through an LED column display device. The LED column display method adopts a patch LED array, which simulates the pressure display method of a traditional mercury sphygmomanometer, which is simple and intuitive, and has good readability. The blood pressure measurement method adopts the Keshi sound method, which has obvious benefits in clinical use. [0003] However, the current Chinese blood ...

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Problems solved by technology

[0003] However, at present, my country's blood pressure measurement verification standards refer to pressure measuring instruments, and only verify the measurement accuracy of several standard pressure values. The Offset sound method is not only a static pressure measurement, but also a stethoscope. Systolic and diastolic blood pressure can be judged by the change of the sound, so the Keshi sound has higher requirements for the measurement of the dynamic change of the pressure

[0004] Due to the well-known mercury pollution, mercury sphygmomanometers are increasingly unable to meet the needs of environmental protection. In recent years, developed countries such as Europe and the United States have gradually restricted and even banned the import and use of mercury sphygmomanometers.

At present, China is still a major producer of mercury sphygmomanometers. The mining and use of mercury have caused great damage to the environment of our country. With the restrictions on mercury sphygmomanometers in Europe and the United States, they have been replaced by alternative products such as sphygmomanometers. Due to the shortcomings such as mechanical fatigue of the blood pressure meter, it cannot become the mainstream of clinical blood pressure measurement, and the new LED column display blood pressure meter can make up for this shortcoming

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