Surgery – Truss – Perineal
Patent
1989-06-27
1992-10-27
Jaworski, Francis
Surgery
Truss
Perineal
12866003, A61B 1700
Patent
active
051580713
ABSTRACT:
An ultrasonic apparatus for thereapeutical use, especially for remedying a malignant tumor, through activation of a drug at a desired local portion inside of a living body by sequentially irradiating a plurality kinds of convergent ultrasonic waves having different focal positions of different acoustic pressure distribution shapes but having a mutually overlapping focal zone and by switching them within a short period. The drug is activated as a promotor for an ultrasonic therapeutical effect through continuous generation and rupture of cavitation caused by the irradiated and switched ultrasonic waves.
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Katakura Kageyoshi
Umemura Koshiro
Umemura Shin'ichiro
Yumita Nagahiko
Hitachi , Ltd.
Jaworski Francis
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