Patent ID: 9017264
Filing Date: 2015-04-28
Classification: A61B

Abstract:
1. An electronic blood pressure meter comprising: a cuff to be wrapped around a measurement area of a measurement subject; a pump that outputs a fluid into the cuff; a control unit that controls the pump so that a pressure in the cuff is increased at an inflation speed target in accordance with a driving voltage; a pressure detection unit that detects a cuff pressure signal indicating a cuff pressure in the cuff; a blood pressure calculation unit that calculates a blood pressure value based on a pulse wave superimposed on the cuff pressure signal detected by the pressure detection unit; a target changing unit that varies the inflation speed target during an inflation process in which the cuff pressure begins to increase at an initial inflation speed target and continues to increase, a cell voltage measurement unit that measures a voltage of a battery for supplying power to the various units in the electronic blood pressure meter as the driving voltage, wherein the target changing unit includes a change pressure determination unit that determines a cuff pressure at which the inflation speed target is to be varied based on the measured voltage of the battery, and wherein the target changing unit varies the inflation speed target when, during the inflation process, the cuff pressure signal detected by the pressure detection unit indicates the determined cuff pressure.