PROBLEM TO BE SOLVED: To prevent capacity shortage of a battery during diagnosis in an ultrasonic diagnostic device having the battery.SOLUTION: A battery residual amount determination part 54 inversely calculates a residual amount P0 of a battery 20 at the present point in time required for performing diagnosis under a current operation condition from the minimum operation-guaranteed residual amount of the battery 20 at the end of diagnosis by using a first power consumption function indicating the relationship between the operation time of a wireless probe 12 and the power consumption of the battery 20 under the current operation condition, and inversely calculates a residual amount Pmin of the battery 20 at the present point in time required for performing diagnosis under the minimum operation condition by using a second power consumption function indicating the relationship between the operation time of the wireless probe 12 and the power consumption of the battery 20 under the minimum operation condition for performing diagnosis. The battery residual amount determination part 54 compares the current residual amount PN of the battery with the residual amounts P0 and Pmin, and performs preventive control for preventing the battery capacity shortage during diagnosis in accordance with the comparison result.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】バッテリを有する超音波診断装置において、診断中におけるバッテリの容量不足を予防する。【解決手段】バッテリ残量判定部54は、現動作条件でのワイヤレスプローブ12の動作時間とバッテリ20の消費電力の関係を示す第1の電力消費関数を用いて、診断終了時点におけるバッテリ20の動作保障最低残量から現動作条件において診断を行うために必要な現時点におけるバッテリ20の残量P0を逆算する。また、診断を行うための最低動作条件でのワイヤレスプローブ12の動作時間とバッテリ20の消費電力の関係を示す第2の電力消費関数を用いて、最低動作条件において診断を行うために必要な現時点におけるバッテリ20の残量Pminを逆算する。バッテリ残量判定部54は、バッテリの現残量PNとP0およびPminとを比較し、比較結果に応じて、診断中のバッテリ容量不足を予防するための予防制御を行う。【選択図】図1
