PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus having an ultrasonic probe which is compact and light in weight, and can acquire a three-dimensional image having high positional accuracy, while suppressing an increase in a cost, and to provide an ultrasonic probe.SOLUTION: An ultrasonic diagnostic apparatus includes: an ultrasonic wave transmitting and receiving part performing transmission and reception of an ultrasonic wave a driving part having a stepping motor in which a rotor performs step operation to an angular position corresponding to a current phase to be input, and changing an orientation direction of the ultrasonic wave transmitting and receiving part according to the step operation and a control part for controlling the current phase according to a direction in which the ultrasonic transmitting and receiving part is oriented.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】コスト増を抑えながら、小型軽量で位置精度の高い三次元画像を取得可能な超音波探触子を有する超音波診断装置及び超音波探触子を提供する。【解決手段】超音波の送受信を行う超音波送受信部と、入力される電流位相に応じた角度位置へローターがステップ動作するステッピングモーターを有し、ステップ動作に応じて超音波送受信部の指向方向を変化させる駆動部と、超音波送受信部を指向させる方向に応じて電流位相を制御する制御部と、を備える。【選択図】図1
