ULTRASONIC TRANSDUCER Russian patent published in 2014 - IPC A61B8/00 G10K11/32 A61N7/00 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to ultrasound therapeutic apparatuses. An ultrasonic transducer contains at least one ultrasonic radiating element with ultrasonic wave front sets radiated by the element representing spherical surfaces of the same radius, while the ultrasonic radiating element performs a function of ultrasound reflection and forms a spherical resonant cavity. If using more than one ultrasonic radiating element, they are configured to form a combined spherical resonant cavity. An internal space of the spherical resonant cavity is shaped as a full spherical envelope or a truncated spherical envelope with a sphere centre inside, while the ultrasonic waves generated by at least one ultrasonic radiating element are focused in the area which comprises the sphere centre of the spherical resonant cavity.

EFFECT: using the invention provides an ultrasonic focus energy gain, as well as eliminated working frequency influence of an ultrasonic source.

15 cl, 11 dwg