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Apparatus for deposition of ultrasound energy in body tissue

  • US 6,135,971 A
  • Filed: 11/08/1996
  • Issued: 10/24/2000
  • Est. Priority Date: 11/09/1995
  • Status: Expired due to Fees
First Claim
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1. An apparatus for ultrasonic energy deposition in body tissue comprising:

  • an array of elements having at least two different sizes, at least one element being aperiodically spaced with the respect to other elements; and

    an excitation means coupled to said plurality of elements for providing said elements with electrical excitations, whereby excitation of said elements produces a beam of ultrasonic energy having reduced grating lobes in said body tissue.

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