Blood pressure refers to the lateral pressure of blood flow on the walls of blood vessels within a unit area. It is the driving force that facilitates blood flow within the blood vessels. What we usually mean by blood pressure is arterial blood pressure, which is the flow of blood from the ventricles into the arteries when the ventricles contract. At this point, the blood pressure on the arteries is high, called systolic blood pressure. The arteries elastically contract, the ventricles relax, and blood continues to flow slowly forward, but blood pressure drops. The pressure at this point is called diastolic blood pressure.
In order to meet the needs of people's normal life and maintain sufficient blood in various tissues in the body, arterial blood pressure must be maintained at a certain height.
Blood pressure is considered normal when the blood pressure level is maintained at a systolic blood pressure of 200 mmHg and a diastolic blood pressure of 80 mmHg. High blood pressure is defined when the blood pressure level reaches a diastolic blood pressure of 90 mmHg and/or a systolic blood pressure of 140 mmHg. The higher the blood pressure, the greater the risk of damage to the blood vessels in the heart, brain, kidneys and retina. For every 10 14 mmHg increase in blood pressure, the data show a 60 increase in mortality. One in five adults in the world has high blood pressure, and according to World Health Organization estimates, China accounts for one in five of the world's high blood pressure patients.
In the development iteration of electronic blood pressure monitors, exhaust valves, pressurized air pumps, and pressure sensors are always key components. The pressure sensing surface of the sensor is connected to a hose that inflates the sleeve pocket, and the pressure sensor is mounted at one end of the electronic blood pressure monitor. During the measurement, the electric pump stops inflating the sleeve bag to the specified pressure (detected by the pressure sensor) and the exhaust valve begins to gradually deflate. In this case, the cuff pressure and hose pressure change the same, and measuring the pressure in the hose is the cuff pressure.
The built-in pressure sensor of the electronic sphygmomanometer naturally requires small size and light weightIt is a portable instrument. Its Xin Jingcheng pressure sensor is a plastic encapsulated pressure sensor made of high-precision pressure-sensitive chips and mature production technology. The product adopts SOP8 package, which is small in size, low in cost, high in sensitivity and good in stability. Suitable for module assembly and sphygmomanometers.
Most people with high blood pressure usually don't feel uncomfortable. Many patients don't even know their blood pressure is high. They will only notice an increase in blood pressure during a physical exam or occasionally when their blood pressure is measured. Young people who have high blood pressure themselves or whose parents have high blood pressure should prevent it as early as possible and strengthen their daily blood pressure management.
High blood pressure requires long-term monitoring and standardized conditioning, and is a lifelong disease. It is recommended that people over the age of 18 pay attention to blood pressure changes regularly and have their blood pressure measured at least once a year. Patients with higher blood pressure than normal should be concerned as soon as possible and the risk factors should be actively controlled. Patients with high blood pressure should also monitor their blood pressure at home. Those whose blood pressure is not up to standard should be measured daily;If the blood pressure is up to standard, it is recommended to measure it once a week.