Patent ID: 8206309
Filing Date: 2012-06-26
Classification: A61B

Abstract:
1. A blood pressure monitoring apparatus comprising: an electrocardiogram monitoring unit configured to monitor an electrocardiogram signal of a subject; a photoplethysmography (PPG) monitoring unit configured to emit an optical signal of a predetermined frequency to a subject's body, detect an optical signal that has reflected from or penetrated the subject's body, and deemphasize noise within the detected optical signal to generate a pulse wave signal; a body characteristic information input unit configured to enable input of body characteristic information of the subject; a micro computer configured to calculate pulse wave analysis information using the pulse wave signal, to calculate a pulse wave propagation time using the pulse wave signal and the electrocardiogram signal, and to calculate a blood pressure of the subject using the calculated pulse wave analysis information, the pulse wave propagation time, and the body characteristic information inputted by the body characteristic information input unit, wherein the micro computer is configured to calculate the blood pressure by inputting the pulse wave propagation time, the pulse wave analysis information and the body characteristic information into the following regression equation: where k a display unit displaying the blood pressure calculated by the micro computer.