Medical noninvasive operations using focused modulated high powe

Details Medical noninvasive operations using focused modulated high powe Medical noninvasive operations using focused modulated high powe

1997-05-27

1998-10-27

Smith, Ruth S.

Surgery: kinesitherapy

Kinesitherapy

Ultrasonic

600427, 600439, 601 4, A61N 700

Patent

active

058272046

ABSTRACT:
Medical noninvasive operations using focused modulated high power ultrasound in accordance with the present invention generally includes a transmitter for exciting a multifrequency ultrasound wave for causing vaporous cavitation bubbles in a small focal zone of a medical target region. Focused ultrasound can be used for both dissolving tissues as well as causing clots in order to destroy cancerous growths. The multifrequency wave includes an underlying low frequency signal for enabling optimal growth of microbubbles and at least one high frequency signal for enabling a narrow zone of focus of the ultrasound. A cavitation monitor may be provided for sensing a level of cavitation as well as providing feedback to the transmitter. In addition, an imaging system is provided for enabling viewing of the medical target area during the therapy.

REFERENCES:
patent: 4905672 (1990-03-01), Schwarze et al.
patent: 5209221 (1993-05-01), Riedlinger

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