Method for indirectly estimating and measuring arterial blood pressure by using PPG sensor
An arterial blood pressure and sensor technology, applied in the field of biomedicine, can solve the problems of large patient disturbance and difficult monitoring.
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[0028] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.
[0029] A method of indirectly estimating and measuring arterial blood pressure using a PPG sensor of the present invention comprises the following steps:
[0030] Step 1, synchronously measure the pulse wave signal of the pericardium and the pulse wave signal of the far center on a certain arterial segment (i section) on the arterial tree of the detected person through the PPG sensor;
[0031] Step 2. According to the synchronously measured pulse wave signal of the proximal point and the pulse wave signal of the distal point, the pulse wave velocity PWV of each local arterial segment of the body can be obtained respectively, wherein, the pulse wave velocity PWV of the i-th arterial segment The pulse wave velocity is defined as PWVi, then there is PWVi=ΔSi / Δti, where ΔSi is the length of the i-th arterial segment, and Δti is the st...
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