PROBLEM TO BE SOLVED: To provide an ultrasonic observation device that can easily acquire information for in vivo observation.SOLUTION: The ultrasonic observation device comprises: a container 101 having an ultrasonic transmission medium in the inside thereof, and having a contacting face abutted on an object area an irradiation unit 102 provided in the container, and irradiating the object area with an ultrasonic wave through the contacting face an acoustic lens 103 provided in the container, and converging the ultrasonic wave incident from the object area side through the contacting face a two-dimensional wave receiver array 105 which is provided in the container and on which the ultrasonic wave converged by the acoustic lens 103 is made incident a Doppler receiver array 107 for acquiring a Doppler component for the receiving signal acquired by each wave receiver constituting the two-dimensional wave receiver array 105, respectively and an output unit 108 for outputting the information according to the Doppler component acquired by the Doppler receiver array 107. At least one of the acoustic lens 103 or the two-dimensional wave receiver array 105 is provided to be movable in an optical axis direction of the acoustic lens 103.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】生体内を観察するための情報を容易に取得することができる超音波観察装置を提供する。【解決手段】内部に超音波伝達媒質を有し、目的領域に対して当接される接触面を有する容器101と、容器内に設けられ、接触面を介して目的領域に超音波を照射する照射部102と、容器内に設けられ、接触面を介して目的領域側から入射された超音波を集束させる音響レンズ103と、容器内に設けられ、音響レンズ103で集束された超音波が入射される二次元受波器アレイ105と、二次元受波器アレイ105を構成する各受波器が取得した受波信号について、それぞれドプラ成分を取得するドプラ受信器アレイ107と、ドプラ受信器アレイ107が取得したドプラ成分に応じた情報を出力する出力部108と、を備え、音響レンズ103または二次元受波器アレイ105の少なくとも一方が、音響レンズ103の光軸方向に移動可能となるよう設けられている。【選択図】図1
