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Apparatus for ultrasonic therapeutic treatment

  • US 6,565,520 B1
  • Filed: 02/23/1999
  • Issued: 05/20/2003
  • Est. Priority Date: 08/23/1996
  • Status: Expired due to Fees
First Claim
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1. A non-invasive dual-frequency body-applicator therapeutic device, comprising first and second ultrasonic piezoelectric transducers on a single axis of longitudinal acoustic propagation, the first transducer including at one longitudinal end a generally cylindrically annular body-application head having a cylindrical bore on said axis, said first transducer having means for independent connection to a first source of ultrasonic acoustic-signal excitation at a first frequency within the range 10 kHz and 4 MHz;

  • said second transducer having means for independent connection to a second source of ultrasonic acoustic-signal excitation at a second frequency within said range and being mounted in said bore with at least some acoustic isolation from said first transducer, and having at said longitudinal end a body-application head;

    said first frequency being lower than said second frequency, and said annular body-application head having a body surface-active engagement face of a material having impedance-matching properties with respect to engaged regions of a body-tissue area contacted by the impedance-matching active-engagement face of said annular body-application head.

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