Abstract: In the present invention, an attachment which is attached to an ultrasound probe for clinical application is as follows. When the attachment is brought into contact with a skin surface of a body, the ultrasound probe radiates ultrasound beams toward the body which is scanned with ultrasound beams in a first plane. The attachment comprises a reservoir section for holding an acoustic medium, an attachment section for attaching the attachment to the ultrasound probe, and a contact membrane arranged opposite to the attachment section to be brought into contact with the skin surface. The dimension of the contact membrane is smaller than that of the attachment section when the reservoir section is cut at a plane perpendicular to the first plane. The reservoir section is formed without causing the reservoir section to shield the ultrasound beams which are converged by the convergence means.

Abstract: A mechanical type ultrasonic scanner has a housing which includes an insertion hole and a window member. The window member possesses ultrasonic transmission properties. The housing is filled with an acoustic liquid medium. A vibrator and a scanning mechanism are also accommodated in the housing. The vibrator generates ultrasonic waves. The scanning mechanism mechanically moves the vibrator, to scan the ultrasonic waves generated thereby. A rotating shaft is inserted in the housing, through the insertion hole. The rotating shaft transmits the driving force of a motor to a scanning mechanism. A seal member is inserted between the housing and the rotating shaft in the insertion hole. A partition wall is formed in the housing, to partition it into a first liquid medium chamber and an adjacent second liquid medium chamber. The first liquid medium chamber accommodates the vibrator and the scanning mechanism.

Abstract: An attachment to a diagnostic ultrasound probe having a beam radiating surface from which ultrasound beam is radiated in a first plane toward a skin surface of an organic body through the attachment which comprises a reservoir section containing acoustic medium. The reservoir section includes an auxiliary membrane, a contact membrane, and a first plane. The auxiliary membrane has an outer surface in contact with the beam radiating surface and is capable of transmitting an ultrasound beam. The contact membrane is arranged to face the auxiliary membrane, has an outer surface in contact with the skin surface of an organic body, and an inner surface, and is capable of transmitting an ultrasound beam. The first wall connects the auxiliary membrane with the contact membrane and has the inner surface crossing the first plane.

Abstract: A radiation detection element comprises an insulating base frame having a pair of leg portions with a spacing left therebetween, a pair of electroconductive members each disposed on one surface of the corresponding leg portions of the base frame, an electrode plate disposed on the rear surface of the base plate to cover the spacing between the leg portions, and a plurality of signal electrode wires spanned between the electroconductive members such that they confront the electrode plate, in which an insulating member is disposed between the base frame and the electroconductive member and/or between the base frame and the electrode plate such that its longitudinal edge portion is overhung into the spacing of the base frame.