SYSTEM AND METHOD OF TREATING BY ULTRASONIC THERAPY Russian patent published in 2014 - IPC A61N7/02 A61B8/00 

FIELD: medicine.

SUBSTANCE: system for ultrasonic tissue therapy comprises an ultrasonic applicator accommodating one or more transducer elements operating in the imaging mode to image the tissue to be treated intermittently, a number of variable-focus lenses attached to one or more transducer elements; focal setting of each of the number of lenses is controlled by a voltage signal on the lens; the system also accommodates a motion controller of the ultrasonic applicator in any of a turning direction and an axial direction, and a therapeutic procedure controller for receiving the image signals as entries and for controlling the voltage signal supplied onto each of the number of variable-focus lenses. The therapeutic procedure controller is used for directing an ultrasonic therapeutic beam. At least three variable-focus lenses of the number of lenses are arranged side-by-side on each of the transducer elements for forming a primary beam on an optical axis of at least three lenses. Each of the three variable-focus lenses is configured to provide separate control of the therapeutic procedure controller for varying the primary beam aperture and to form divergent beams along both sides of the primary beam. A method for measuring the primary beam aperture involves the stages, which provide mounting the ultrasonic applicator with one or more ultrasonic transducer elements not far from the tissue of interest, exciting at least one transducer element by an excitation signal, controlling the effect of the excitation stage by means of the images, controlling the primary beam aperture, displacing or turning the ultrasonic applicator to enable the therapy covering substantially various tissue regions for treating various tissue regions.

EFFECT: using the invention enables the accurate adjustment of the therapeutic beam for conducting therapy of prostates of various sizes and shapes, avoiding the involvement of such critical structures, as the rectal wall and nerve ganglia.

18 cl, 7 dwg