How does a pulse wave sphygmomanometer work
A pulse wave is formed by the pulse (vibration) of the heart propagating along the arterial blood vessels and blood flow to the periphery, such as Ripples on the water. The pulse wave is slightly different in different locations (aorta, arteries, or capillaries) as the blood circulates in the blood vessels. Because of the special correlation between pulse wave and blood flow, blood pressure can be measured indirectly through pulse wave. There is no error caused by the lack of hearing and vision of the doctor, and the accuracy is trustworthy.
The pulse wave sphygmomanometer adopts the pulse wave detection method, instead of the Korotkoff sound method (hearing is false, seeing is believing), adopts the upper arm cuff and the downstream pulse wave detection method, and uses multi-point measurement instead of single Point measurement, which converts discontinuous events of pulse beats into continuous measurements. The pulse wave sphygmomanometer can measure the blood pressure value between the two heartbeats, and all the measurement processes do not require manual intervention, avoiding the error introduced by the subjective. The calculation of the blood pressure value relies on the internal relationship and variation law between the points near the systolic and diastolic blood pressure points, rather than empirical statistical data, which avoids measurement errors caused by individual differences.
How about the pulse wave blood pressure monitor
The pulse wave blood pressure monitor adopts the fourth-generation pulse wave blood pressure measurement technology that has been patented. Inevitable errors, when using the Korotkoff sound measurement method and the pulse wave measurement method at the same time, the data measured by the pulse wave sphygmomanometer will be higher than the data obtained by the Korotkoff sound measurement method, which can explain the pulse wave sphygmomanometer. Pseudohypotension can be effectively avoided.
On the one hand, the amplitude of the measured pulse wave in the vicinity of the systolic blood pressure changes basically linearly, instead of judging the process of judging the Korotkoff sound from scratch, avoiding the inevitable caused by the discontinuity of the heart beat. There may be errors, and the systolic blood pressure in the blood pressure can be accurately and non-invasively measured; on the other hand, based on the time characteristics of the delay time between the measured pulse wave and the corresponding barometric AC signal in the vicinity of the diastolic blood pressure, instead of judging the presence of Korotkoff sounds The process also avoids the unavoidable possible errors caused by the discontinuity of the heart beat, and can accurately and non-invasively measure the diastolic blood pressure in the blood pressure.
Accurate measurement of blood pressure is the premise of quantitative analysis of the causes of abnormal blood pressure. There are many factors affecting human blood pressure. If the error of blood pressure measurement itself is large enough to cover up these influencing factors, the premise of quantitative analysis of abnormal blood pressure will no longer exist. The smart chip embedded in the pulse wave sphygmomanometer can automatically simulate every step in the blood pressure measurement process without manual operation, which is not only convenient to operate, but also avoids errors caused by human intervention.
