Acoustic intensity monitor

Details Acoustic intensity monitor Acoustic intensity monitor

1980-03-12

1982-04-06

Michell, Robert W.

Surgery

Truss

Pad

128736, A61B 1000

Patent

active

043230776

ABSTRACT:
A system and method are disclosed for monitoring the acoustic intensity of ultrasonic energy applied to a body by an ultrasonic probe for the purpose of diagnosing an internal target. The probe contacts a limited area of the body skin and a coupling medium, such as a coupling gel, is interposed to enhance acoustic coupling between the probe and the skin. A thermally sensitive agent in the coupling medium imparts color to the latter indicative of the heat dissipated on the skin area under the probe. Whenever a predetermined color change of the coupling medium indicates that the heat dissipation on this area exceeds a predetermined limit, the acoustic intensity of the ultrasonic energy beamed to the target is reduced.

REFERENCES:
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patent: 3533399 (1970-10-01), Goldberg et al.
patent: 3578844 (1971-05-01), Churchill et al.
patent: 3585381 (1971-06-01), Hodson
patent: 3697297 (1972-10-01), Churchill et al.
patent: 3732119 (1973-05-01), Churchill et al.
patent: 4002221 (1977-01-01), Buchalter
patent: 4080959 (1978-03-01), LeVeen
patent: 4190058 (1980-02-01), Sagi
patent: 4211949 (1980-07-01), Brishen

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