Patent ID: 9022944
Filing Date: 2015-05-05
Classification: A61B

Abstract:
1. An electronic sphygmomanometer comprising: a cuff to be mounted on a measurement site; a tank that stores a prescribed amount of fluid; a pressure adjusting unit that adjusts pressurization of the cuff or the tank, by supplying or discharging the fluid; a pressure detector comprising a pressure sensor, the pressure detector detecting a pressure in the cuff and a pressure in the tank based on pressure information output from the pressure sensor, wherein the pressure detector selectively detects the cuff pressure or the tank pressure based on a switching signal; a blood pressure calculating unit that calculates a blood pressure value based on a change in the pressure in the cuff detected by the pressure detector; an abnormality detector that detects whether the pressure sensor is abnormal; and a first channel through to the pressure adjusting unit and the pressure detector, and comprising one of the tank and the cuff selectively connected thereto, wherein the abnormality detector detects whether the pressure sensor is abnormal, based on the pressure in the tank detected by the pressure detector in accordance with the pressure information output from the pressure sensor, in a state where the tank is connected to the first channel and the fluid is supplied to the connected tank.