PROBLEM TO BE SOLVED: To provide an ultrasound diagnostic device that can efficiently transport heat generated inside an ultrasound probe to an outer surface of the probe in order to radiate the heat.SOLUTION: In the ultrasound diagnostic device, an air current generator 34 is disposed in an outer part or inner part of the ultrasound probe so as to efficiently transport heat to a surface of the ultrasound probe from a heat source inside the ultrasound probe with a sealed structure.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2017,JPO&INPIT【課題】超音波探触子の内部で発生した熱を効率的に探触子の外部表面に輸送し、放熱できる超音波診断装置を提供する。【解決手段】密閉構造の超音波探触子の内部の熱源から超音波探触子の表面に効率的に熱を移動できるように、超音波探触子の外部又は内部に気流発生機34を配置する。【選択図】図7