Abstract:
An ultrasonic intracranial sonothrombolysis pressure amplitude is pre-quantified by using an ultrasound-scanner control unit (110) having an increasing and/or decreasing mode and designed for: with respect to a current mode, interrogating a blockage site iteratively so as to progressively and respectively increase or decrease a pressure amplitude of ultrasound being emitted to the site at which bubbles (144) for oscillating that is caused by the emitted ultrasound are present; iteration to iteration, deriving, from echoes of the emitted ultrasound, a magnitude of an energy of a signal; and automatically identifying, for the quantifying, an iteration that, in comparison with a just-previous iteration, fails to increase the magnitude. The interrogating may span a region that contains or goes through: the obstruction; another part of the blood vessel; and bubble circulation within a neighboring vessel and a neighboring capillary (136). The deriving can be based on an ultraharmonic signal, with band-pass filtering being utilized to extract the ultraharmonic signal from returning signals differenced to remove stationary content.
Abstract:
Described herein are methods and apparatus for detecting stones by ultrasound, in which the ultrasound reflections from a stone are preferentially selected and accentuated relative to the ultrasound reflections from blood or tissue. Also described herein are methods and apparatus for applying pushing ultrasound to in vivo stones or other objects, to facilitate the removal of such in vivo objects.
Abstract:
A method is disclosed using a feedback loop for focused ultrasound application. The method includes the steps of determining a location of a target side within a body using ultrasound waves, applying focused ultrasound waves to the target site, determining a new location of the target site using further ultrasound waves, and adjusting the focused ultrasound waves in response to the new location of the target site.
Abstract:
Bei einem Verfahren zum Betreiben einer Lithotripsie- Einrichtung, bei dem an einen zu behandelnden Patienten (12) eine Stoßwellenquelle (2) angekoppelt wird, die eine in einem Fokus (S) fokussierte Stoßwelle erzeugt, wird eine beim Ankoppeln verursachte Verformung einer die Stoßwellenquelle (2) tragenden Tragkonstruktion (3) erfasst und ausgewertet.
Abstract:
Method and system disclosed herein include noninvasively detecting, separating and destroying multiple masses (tumors, cysts, etc.) through a plurality of iterations from tissue (e.g., breast tissue). The method and system may open new frontiers with the implication of noninvasive treatment of masses in the biomedical area along with the expanding technology of acoustic surgery.
Abstract:
The invention relates to a method and a device for visualizing the orientation of therapeutic sound waves in an area to be treated or manipulated, using a display unit having a screen on which the orientation of the therapeutic sound waves in relation to the area to be treated is represented symbolically. -he invention is characterized in that the sound wave source and the spatial area in which said sound waves propagate, as well as the area to be treated or manipulated (referred to below as treatment area) are represented in perspective by assignment to physical figures, and in that said perspective changes correctly in line with any change in the location or orientation of the sound wave source and/or the treatment area and/or the position or orientation of the screen.
Abstract:
The apparatus for the non-intrusive fragmentation of renal calculi according to the invention comprises at least one ultrasonic receiver-transmitter head (12) focused on the renal calculus (11) to be disintegrated, said head (12) being associated with low-power variable frequency transmitter means (16) and with receiver means (18) to perform a spectral analysis of the characteristic resonance frequencies of the calculus (11) to be disintegrated, and control means (Tx1, OSC1) to cause said transmitter means (16) to emit relatively high-power energy peaks at the characteristic resonance frequencies of said calculus (11) to promote its disintegration.
Abstract:
Described herein are apparatus for performing lithotripsy. The apparatus comprise a CT scanner and a shock wave tube for generating shock wave pulses for fragmenting kidney stones. The CT scanner includes a guidance system which is utilized to guide and control the position of the shock wave tube relative to a patient. The shock tube moves along an track which may be coupled to the CT scanner or which may be movable relative to the scanner. The track may be circular or semi- circular. The shock tube is movable about three orthogonal axes, which movement is controlled by the guidance system. A method for performing the lithotripsy using the apparatus is also described herein.
Abstract:
The invention relates to a combined shock wave therapy and X-ray apparatus having an oblique arrangement of a stand (5) of said apparatus relative to a patient berth (1).
Abstract:
Apparatus for treating medical conditions such as a gallstone or kidney stone in a patient, comprising a transmitter operable to focus sound waves on the medical condition within the patient to cause a reduction in the medical condition, a detector operable to receive a treatment sound signal generated in the process of the reduction of the medical condition, and a signal processor adapted to provide an output signal to an operator indicative of the advocacy of the treatment of the medical condition dependent on the treatment sound signal detected by the detector.