PROBLEM TO BE SOLVED: To enable clear and high-resolution output in the ultrasound diagnosis using an ultrasonic probe.SOLUTION: An ultrasonic diagnostic apparatus has: an ultrasonic probe 120 including a substrate 100 having an ultrasonic transducer 101 arranged therein and including a first surface and a second surface that are rectangular faces, and a backing member 106 including a curved surface 106a connected to the second surface and protruded toward the arrangement side of the ultrasonic transducer 101 and a bottom surface 107 and a control unit for instructing ultrasonic transmission/reception to the ultrasonic probe 120. Further, the substrate 100 includes a through-hole formed in an outer circumferential part of the first surface. A holding member penetrating the through-hole and holding the substrate 100 is provided in the curved surface 106a. An angle of a portion connected to the backing member 106 of the holding member is the angle different from the angle of the normal of the curved surface 106a to which the holding member is connected.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】超音波探触子を用いた超音波診断において鮮明でかつ高画質な出力を可能にする。【解決手段】超音波診断装置は、超音波振動子101が配置され、長方形の面である第1の面および第2の面を備えた基板100と、上記第2の面に接続し、超音波振動子101の配置側に向かって凸となる曲面部106aおよび底面107を備えたバッキング部材106と、を備える超音波探触子120と、超音波探触子120に超音波の送受信を指示する制御部と、を有する。さらに、基板100は、上記第1の面の外周部に形成された貫通孔を備え、曲面部106aには上記貫通孔を貫通し、かつ基板100を保持する保持部材が設けられ、上記保持部材のうちバッキング部材106に接続される部分の角度は、上記保持部材が接続される曲面部106aの法線の角度とは異なる角度である。【選択図】図2
