Patent ID: 7699786

Claim:
An electronic blood pressure monitor comprising: a blood pressure measurement unit for measuring blood pressure; a first storage for storing resultant measurement information including data of past measurements of said blood pressure measured by said blood pressure measurement unit and condition specifying data associated with each said blood pressure for specifying a condition while measuring said blood pressure; a display for displaying the resultant measurement information; a first input device operated to input an instruction to selectively activate a plurality of functions included in a first function group and a second function group of the electronic blood pressure monitor, said first function group including a measurement function provided by said blood pressure measurement unit and a first display function displaying on said display the resultant measurement information stored in said first storage, and said second function group including an erasure function erasing said resultant measurement information stored in said first storage and a value changing function changing a value serving as a reference for said condition for measurement, said first input device further including buttons to activate both the first function group and the second function group, said buttons available to a user regardless of whether or not the electronic blood monitor is started by a specific operation associated with the second function group; a timer for counting time, wherein said condition specifying data includes data of time counted by said timer when the blood pressure monitor measures said blood pressure; and an activation controller for exerting control in response to a signal representative of said instruction received via said first input device to selectively activate said plurality of functions, wherein said activation controller includes a determining unit for determining whether the electronic blood pressure monitor is started by said specific operation associated with said second function group, a setting unit driven by a decision made by said determining unit for setting said second function group in an activatable state or an inactivatable state, and wherein said activation controller selectively activates the function corresponding to said signal, the activated function being a function included in said first function group if said signal corresponds to said first function group or the activated function being a function included in said second function group if said signal corresponds to said second function group and said setting unit also sets said second function group in said activatable state.