Multiple transducer assembly and method for coupling ultrasound

Details Multiple transducer assembly and method for coupling ultrasound Multiple transducer assembly and method for coupling ultrasound

1998-09-17

2000-10-03

Smith, Ruth S.

Surgery: kinesitherapy

Kinesitherapy

Ultrasonic

A61B 1722

Patent

active

061266191

ABSTRACT:
A multiple transducer assembly and method for coupling ultrasonic energy to a body for thrombolysis of vascular thrombi is provided. The assembly includes a catalytic transducer apparatus including a plurality of transducers for transmitting ultrasound into a medical target transcutaneously. Each transducer includes a front mass having structure which optimizes the transmission of ultrasound into the body. The transducers may share a common front mass. A reservoir for containing a cooling conductive medium between the front mass and the body surface is provided, and is contained within the housing. In addition, the catalytic transducer includes an irrigation manifold, disposed through a center of the front mass, for directing the medium into the reservoir generally along a perimeter thereof. The front mass includes an apex for accumulating expelled gasses. A sloped surface of the front mass functions to direct expelled gasses toward the apex and through an outlet provided by the irrigation manifold. The medium may be circulated from a degassing tank as well as a heat exchange unit in order to maintain a desired reservoir temperature at the body surface. In the multiple transducer arrangement, the transducers may share a common cooling reservoir. A flexible blanket may be provided for collectively housing a desired number and arrangement of transducers.

REFERENCES:
patent: 4840166 (1989-06-01), Naser et al.
patent: 4858597 (1989-08-01), Kurtze et al.
patent: 5879314 (1999-03-01), Peterson et al.

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