Patent ID: 8764670
Filing Date: 2014-07-01
Classification: A61B

Abstract:
1. A blood pressure information measurement device for measuring blood pressure information according to a volume compensation method, the blood pressure information measurement device comprising: a cuff to be wrapped around a predetermined measurement site; a pressure detection unit that detects a cuff pressure representing a pressure in the cuff; a first volume detection unit, arranged at a predetermined position of the cuff, that detects a volume of a first artery at the measurement site; a second volume detection unit that detects a volume of a second artery at a peripheral site, which is a site on a peripheral side than the measurement site; a detection processing unit that performs a process for detecting a target value of a servo control; a servo control unit that carries out the servo control so that a difference between the volume of the first artery and the target value of the servo control is smaller than or equal to a predetermined value; a blood pressure determination unit that determines the cuff pressure when an amplitude in change in volume of the first artery is smaller than or equal to the predetermined value as a blood pressure according to the servo control; and a congestion detection unit that detects congestion of the peripheral site based on an output from the second volume detection unit during a period of servo control.