Structure and principle of electronic blood pressure monitor and air pump

2023-04-12 22:12:13

Electronic blood pressure monitors play an important role in modern medicine and daily life, and their precise, non-invasive, and easy to operate characteristics make them the preferred tool for monitoring blood pressure. Among them, the air pump plays a crucial role in providing the pressure required for measuring blood pressure. This article will delve into the structure and principle of electronic blood pressure monitors and pumps.

1、 Air pump structure

The air pump of an electronic blood pressure monitor usually consists of micro diaphragm, micro cylinder, micro valve, micro motor, and other parts. As the core component of an air pump, the micro diaphragm is mostly made of metal or plastic, which has good elasticity, pressure resistance, and airtightness. The micro cylinder serves as the fixed part of the diaphragm, ensuring stable movement of the diaphragm. The micro valve controls the inlet and outlet of gas, ensuring the normal operation of the air pump. The micro motor serves as the power source for the air pump, providing the driving force for diaphragm movement.

2、 Working principle of air pump

The working principle of the electronic blood pressure monitor air pump is based on the principle of volume change, which changes the volume inside the cylinder through the reciprocating motion of the micro diaphragm, thereby generating pressure changes. When the micro motor drives the micro diaphragm to move back and forth, the gas volume in the cylinder is compressed or expanded, generating a certain amount of pressure. This pressure change is controlled by a micro valve to allow gas to enter and exit, and ultimately output to the measurement section of the blood pressure monitor.

During the blood pressure measurement process, the air pump first inflates the cuff with a preset pressure, making the cuff tightly press against the measurement area. Then, as the air pump releases pressure, the cuff pressure gradually decreases until it reaches the preset diastolic pressure. During this process, precise control of the air pump is crucial for the accuracy of blood pressure measurement.

3、 Optimization of air pump performance

In order to improve the measurement accuracy and stability of electronic blood pressure monitors, optimizing the performance of the air pump has become crucial. This includes improving the structural design of the air pump, enhancing the material performance of the micro diaphragm, and optimizing the control algorithm of the micro motor. In addition, in-depth research is needed on the noise and vibration issues of air pumps to improve user experience.

4、 Conclusion

As the core component of an electronic blood pressure monitor, the structure and principle of the electronic blood pressure pump determine the overall performance of the blood pressure monitor. With the advancement of technology and the increasing demand for medical and health care, the research and optimization of electronic blood pressure monitors and pumps have become particularly important. In the future, we hope to continuously improve the accuracy and stability of electronic blood pressure monitors through deeper research and innovation to meet the growing demand for health monitoring. Meanwhile, with the trend of intelligence, electronic blood pressure monitors will be combined with advanced technologies such as the Internet of Things and big data, providing more possibilities for people's health management.