Ultraschallvorrichtung für therapeutischen Gebrauch
摘要
An ultrasonic apparatus for thereapeutical use, especially for remedying a malignant tumor, activates 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.
申请公布号
DE68928578(T2)
申请公布日期
1998.10.01
申请号
DE1989628578T
申请日期
1989.06.30
申请人
HITACHI, LTD., TOKIO/TOKYO, JP
发明人
UMEMURA, SHINICHIRO, HACHIOJI-SHI, TOKYO, JP;YUMITA, NAGAHIKO, TOKYO, JP;UMEMURA, KOSHIRO, FUJISAWA-SHI, KANAGAWA, JP;KATAKURA, KAGEYOSHI, TOKYO, JP