Including electronic sphygmomanometer, mercury sphygmomanometer and spring sphygmomanometer. The electronic blood pressure meter is divided into arm type and wrist type. Its technology has gone through the development of the first generation "hollow core" (the most primitive arm and wrist), the second generation (arm use), and the third generation (wrist use) "no hollow core". Mercury sphygmomanometer (manometer) and spring sphygmomanometer (manometer) measure blood pressure through auscultation. They must cooperate with the stethoscope and be judged by doctors or nurses to obtain systolic and diastolic blood pressure readings.

1. Type of sphygmomanometer

The designs of sphygmomanometer purchased in the Chinese market can be mainly divided into two categories: mercury sphygmomanometer and electronic (non liquid) sphygmomanometer. The mercury sphygmomanometer is very large and inconvenient to carry.

The electronic sphygmomanometer is small in size, easy to carry and use, and almost everyone can use it by themselves. As a simple tool for self checking blood pressure, it is very popular among hypertensive patients.

2. Is auscultation more accurate for doctors?

The mercury sphygmomanometer used by doctors in hospitals is just a tool for measuring pressure. The view that the mercury sphygmomanometer is an accurate sphygmomanometer is one-sided, because the mercury sphygmomanometer is just a pressure gauge, and the focus is that doctors listen through stethoscope. At present, developed countries generally prohibit the use of mercury sphygmomanometer and use electronic pressure gauges (meters) with high accuracy. Moreover, the accuracy of the blood pressure measured by the doctor's auscultation is also influenced by a series of factors such as the doctor's emotions, hearing, environmental noise, and subject panic.

3. Clinical application research of electronic sphygmomanometer for system development verifies information technology standards

The clinical verification of electronic sphygmomanometer is based on auscultation and statistical methods. However, this does not mean that the results obtained by auscultation with a mercury meter are more accurate than those obtained by auscultation with an electronic sphygmomanometer. Of course, it is wrong to think that electronic sphygmomanometer is more accurate than a mercury stethoscope. The difference between electronic sphygmomanometer and stethoscope of individual subjects is normal.

4. There are no different types of electronic sphygmomanometer.

It is suggested to use China electronic sphygmomanometer, whose accuracy has been verified by the test results of the standard system. For the elderly in China, it is recommended that students use an automatic sphygmomanometer on the upper arm instead of a semi-automatic sphygmomanometer and a wrist sphygmomanometer. For young and middle-aged people in our country, the development of enterprises can also be achieved through research on the use of wrist electronic sphygmomanometer and finger sleeve sphygmomanometer, which was developed in Japan at an early stage, but was soon proved impractical.

5. How to view the results of enterprise electronic sphygmomanometer

The results of the electronic sphygmomanometer can only be used as a reference for doctors to diagnose, which is required by the laws and regulations of any country on medical devices. Doctors should further confirm the patient's blood pressure through auscultation.