A method of estimating the volume flow in a vessel utilizing ultrasound techniques including the steps of imaging the vessel utilizing an ultrasonic transducer array so as to produce fluid velocity information for the vessel, the plane formed by the beams emitted by the transducers having a direction which is offset from an axis of the vessel such that the beam plane forms an elliptical section within the vessel, and utilizing the velocity information for points within the vessel and the ellipti...

Apparatus and method are disclosed for producing ultrasound readings of simulated blood flow through a model left ventricle or larger portion of the human heart, held inside a fluid filled chamber with membrane-covered windows, and through mitral and aortic valves cooperating therewith to provide a simulated human circulation flow free of reverberation artifacts and the like. Adjustable flow of a selected hydraulic fluid into and out of the chamber that also contains a plurality of ultrasound ab...

An ultrasound brain lesioning system with ultrasound, CT or MRI site localization includes a skull fixation apparatus, a position data translating fixture and a computer-controlled ultrasound transducer. The skull fixation apparatus is utilized in combination with ultrasound, CT or MRI scan transparencies and with a digitizing tablet in order to transfer transparency data both as to skull fixation benchmarks and tumor locations into a computer. The transducer is cooperatively arranged with the t...

An ultrasound generator and emitter suitable for use in ultrasound therapy has an electrical signal generator for charging an ultrasound resonator in an ultrasound head with electrical signals, which are converted into ultrasound energy to be emitted. The ultrasound head also includes an adapter element which electrically matches the particular ultrasound head being used to the electrical signal generator. The adapter is in the form of a removable adapter element which is electrically matched to...

An ultrasound resonant spectrometer determines the resonant frequency spectrum of a rectangular parallelepiped sample of a high dissipation material over an expected resonant response frequency range. A sample holder structure grips corners of the sample between piezoelectric drive and receive transducers. Each transducer is mounted on a membrane for only weakly coupling the transducer to the holder structure and operatively contacts a material effective to remove system resonant responses at th...

An ultrasound acoustical coupling pad comprising, a retaining member comprising a sheet having a front surface, a back surface, and a cut-out. The pad has a doppler transducer received in the cut-out, and a strip of acoustical gel covering at least a substantial portion of the front surface of the retaining member. The pad has a backing member comprising a sheet secured to the retaining member and having an edge portion extending outwardly from the retaining member and strip, with the edge porti...

An ultrasound liquid level detector system for automatically controlling the dispensing of a post-mix beverage, including microprocessor-controlled circuitry for monitoring and implementing the automatic dispensing process. The microprocessor is interfaced with an ultrasonic transducer which transmits ultrasonic wave energy towards the container to be filled and receives reflected ultrasonic wave energy, the characteristics of which are analyzed within the microprocessor to implement control fun...

An ultrasound diagnostic apparatus for displaying two-dimensional blood flow information superimposed over anatomical information. A transducer generates a series of ultrasound bursts which are directed towards the area of the body where blood flow and anatomical information are desired. The bursts are transmitted in several beam directions so as to form a sector scan. A receive interval follows each burst at which time the transducer detects ultrasound reflected from body structure and blood. A...

An ultrasound applicator designed for scanning tissues and organs located in cavities of the human body. A transducer head operated by an examining person is provided with a connection cable adapted to be connected to an image signal processing device. The transducer head is designed for firm placement of a guiding organ, especially the finger of an examining person. Preferably the top surface of the housing bears a recess forming a mold for the finger. Additionally, a flexible yoke may be arran...

An ultrasound hyperthermia apparatus has a tomographic ultrasound probe for obtaining a tomographic image and a heating applicator for heating a tumor portion. A position detector is provided to detect the positional relationship of the tomographic ultrasound probe and the heating applicator with respect to a living organism, and a hot spot detector detects the position of a focusing point, i.e., a hot spot of the ultrasound radiated from the heating applicator in accordance with position data f...