Ultrasonic therapeutical apparatus

Details Ultrasonic therapeutical apparatus Ultrasonic therapeutical apparatus

1988-11-15

1990-09-11

Jaworski, Francis

Surgery

Truss

Perineal

128660030, G01N 2900, A61B 800

Patent

active

049553666

ABSTRACT:
A ultrasonic therapeutical apparatus comprises a plurality of ultrasonic vibrators which are disposed in a plurality of concentric circular rows and defining a ultrasonic shock wave generator. The apparatus also includes control means for independently controlling the frequency and the phase with which the ultrasonic vibrators in the respective raws are driven as well as the output levels thereof, thereby allowing only a positive pressure of the resultant ultrasonic wave to be increased while suppressing a negative pressure thereof to eliminate a cavitation effect.

REFERENCES:
patent: 4586512 (1982-05-01), Dohuu et al.
patent: 4757820 (1988-07-01), Itoh
patent: 4807627 (1989-02-01), Eisenmenger
patent: 4823773 (1989-04-01), Naser et al.
patent: 4836191 (1989-06-01), Noske et al.

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