An ultrasound Doppler applicator is used for determining the movement of internal body parts the position of which is variable relatively to the applicator, particularly fetal heart movement. The invention is particularly characterized by the provision of a plurality of ultra sound sending oscillators and a plurality of ultra sound receiving oscillators carried by a ring and distributed over the entire ring.

Acoustic imaging systems are provided. A preferred system includes a protective cover configured to mate with a transducer body. The transducer includes a two-dimensional transducer element matrix array formed by a plurality of individually controllable transducer elements. The protective cover is superposed above the two-dimensional matrix array and is transparent to incident acoustic energy. Preferably, the protective cover is shaped to reduce patient discomfort and repetitive motion injuries ...

The invention relates to an ultrasound horn comprising a fixing section (1a), a sealing section (1c) and a transfer section (1b) extending therebetween, one or more elongate recesses (3, 4) being formed at least in the transfer section (1b), and said recesses (3, 4) extending in a direction (A) between the fixing section (1a) and the sealing section (1c). Said recesses (3, 4) have a rounding-off encompassing, along the rounding-off, at least a first portion (5a, 7a) with a first radius of curvat...

Acoustic imaging systems are provided. A preferred system includes a protective cover configured to mate with a transducer body. The transducer includes a two-dimensional transducer element matrix array formed by a plurality of individually controllable transducer elements. The protective cover is superposed above the two-dimensional matrix array and is transparent to incident acoustic energy. Preferably, the protective cover is shaped to reduce patient discomfort and repetitive motion injuries ...

An ultrasound probe obtained by arranging, on a backing 10, a plurality of transducers each of which comprising a piezoelectric transducer 20, an acoustic lens 40, and an acoustic matching layer provided between the piezoelectric transducer 20 and the acoustic lens 40, the acoustic matching layer containing a fibrous material, and the direction of fibers in the fibrous material being perpendicular to the direction of sound waves.

A rigid tip end section which is connected to an angle section at the fore distal end of an insertion instrument of an ultrasound endoscope is housed in a casing which can be split into a main casing and a separable head block to facilitate maintenance and service of internal component parts of the rigid tip end section. An ultrasound transducer is accommodated in a front side portion of the main casing, while endoscopic observation means including an illumination means and an optical image pick...

An ultrasound system includes an ultrasound probe configured for sensing and transmitting ultrasound signals. The ultrasound system further includes an optical conduit configured for coupling a light source and an optical detector in an optical path. The optical conduit includes electro-optic modulators configured for modulating optical signals on the optical conduit with at least one of the electrical signals configured to generate corresponding optically modulated analog signals on the optical...

A base member formed of rubber or the like, which transmits ultrasound waves, includes a storage portion with a small width connected with a storage portion with a great width, wherein internal organ models, formed of animal internal organs or the like, such as an esophagus model, stomach model, and the like, are stored in these storage portions. A jelly-like member, which transmits ultrasound waves, is filled in around the internal organ models. An ultrasonic endoscope or the like can be insert...

An ultrasound sensor is used for measuring the sound pressure amplitude in the focal range of focused ultrasound shock waves. The sensor contains a polymer foil which is piezoelectrically activated in one region and is coupled to electrodes which are physically separated from the region. The polymer foil is arranged in a hollow plastic cylinder with its flat surface sides parallel to the central longitudinal axis of the hollow cylinder. By this measure, interfering diffraction effects are reduce...

An ultrasound phantom for use with an ultrasound scanner. The ultrasound phantom includes a container having a bottom and walls, margins of the walls remote from the bottom defining a window, which is closed by an ultrasound-transmitting window cover. A phantom body is contained within the container and includes a matrix made of a matrix material exhibiting a matrix ultrasonic speed, specific gravity, attenuation coefficient, and backscatter coefficient. The phantom body further includes a multi...