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Apparatus and method for acoustic/mechanical treatment of early stage acne

  • US 8,740,917 B2
  • Filed: 12/21/2007
  • Issued: 06/03/2014
  • Est. Priority Date: 01/15/2003
  • Status: Active Grant
First Claim
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1. A method for cleansing of skin, comprising the steps of:

  • a first step of deforming the skin from a neutral position to a first deformed position at which point the skin is within its elastic limit;

    a second step permitting the skin to return to said neutral position; and

    repeating the first and second steps within a frequency range of 20 Hz to 1 KHz, to produce an action on the skin which results in the cleansing of the skin, wherein the step of deforming the skin is accomplished by bristles arranged into a plurality of bristle tufts, and wherein the peak amplitude of motion at the base of one bristle tuft with respect to that of an adjacent bristle tuft is in the range of 10%-125% of the center-to-center distance between adjacent bristle tufts moving with respect to each other.

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