Patent ID: 8517949

Claim:
An ultrasound transducer unit, comprising: an ultrasound element; a substrate having one end that is electrically connected to the ultrasound element; a signal transmission cable that is electrically connected to the other end of the substrate; a cylindrical metal shield member having a large-diameter portion, a small-diameter portion that has a smaller diameter than a diameter of the large-diameter portion, and a step portion that connects the large-diameter portion and the small-diameter portion, in which an opening portion is formed in the step portion or the small-diameter portion, and in which the large-diameter portion covers an outer circumference of the substrate; and ground wiring that electrically connects the substrate and an outer circumferential face of the metal shield member on an opposite side to an inner surface that faces the substrate; wherein, the ground wiring electrically connects the substrate and the outer circumferential face of the metal shield member by being extended to outside the metal shield member from inside the large-diameter portion of the metal shield member through the opening portion and electrically connected to the outer circumferential face of the small-diameter portion.