Cuffless and Non-Invasive Estimation of a Continuous Blood Pressure Based on PTT

This study suggests the method for measuring the BP (blood pressure) which it is one among the important vital sign of the human body with a cuffless and non-invasive. The monitoring of the BP is general to use the physical sensor which it directly contacts with the blood vessel in an operation, but this kind of a method can be impossible in the emergency requiring the rapid treatment. In a situation, to take a BP reading, most people use the device which is measured by inflating a cuff around the arm. However, it can measure with these method only the instantaneously BP but the continued BP cannot be shown. This paper shows the wrist type device is developed for the continuous BP measurement which is a non-invasive type. And after analyze and compare to BP data obtained by wearing the wrist type device and reference device, we present the possibility of the cuffless BP.