Ultrasonic ablation/dissolution transducer

Details Ultrasonic ablation/dissolution transducer Ultrasonic ablation/dissolution transducer

1992-09-14

1994-06-07

Smith, Ruth S.

Surgery: kinesitherapy

Kinesitherapy

Ultrasonic

604 22, 604 27, 604 28, A61B 1722

Patent

active

053180143

ABSTRACT:
Ultrasonic apparatus for clot dissolution includes a radiator for coupling ultrasonic waves and a piezoelectric crystal, connected with said radiator, for the intravascular generation of ultrasonic waves; said ultrasonic waves being propagated along a longitudinal axis of said piezoelectric crystal. A seed liquid is introduced proximate the radiator for promoting cavitation of intravascular fluid. In addition, enhancement of clot dissolution by chemical agents is shown to be significantly increased when combined with ultrasonic energy.

REFERENCES:
patent: 4917095 (1990-04-01), Fry et al.
patent: 4931038 (1990-06-01), Frigerio
patent: 5018508 (1991-05-01), Fry et al.
patent: 5040537 (1991-08-01), Katakura
"Enhancement of Fibrinolysis with Ultrasound Energy"; Katsuro Tachibana Journal of Vascular and Interventional Radiology May 1992.

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