Blood pressure monitoring system
a monitoring system and blood pressure technology, applied in the field of blood pressure monitoring system, can solve the problems of internal hemorrhage, burdened blood vessel around the cuff, and overlooked drastic changes in blood pressure, so as to achieve the effect of minimizing the burden on the subject and performing more accurately
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Embodiments of the invention will now be described in detail with reference to the drawings.
The basic concept of the invention will now be described below.
A blood pressure measuring apparatus that measures blood pressure from pulse wave propagation speed (the time required for a pulse wave to be propagated a predetermined distance) is known as a noninvasive blood pressure measuring apparatus.
The principle of blood pressure measurement based on the pulse wave propagation speed can be explained in the following way.
The pulse wave propagation time will be described first. As shown in FIG. 4, a specific point of a pulse wave on the side of peripheral blood vessels such as a finger or a ear appears with a time lag with respect to a specific point of an aortic pulse wave. This time lag is the pulse wave propagation time.
The pulse wave propagation speed corresponding to the time required for a pulse wave to be propagated a predetermined distance is expressed in the form of a function of th...
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