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Piezo element stethoscope

  • US 9,185,496 B1
  • Filed: 02/11/2013
  • Issued: 11/10/2015
  • Est. Priority Date: 11/06/2009
  • Status: Active Grant
First Claim
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1. An active stethoscope chest piece, comprising:

  • a chest piece housing containing;

    a piezoelectric (piezo) element situated so as to pick up body sounds and provide an electrical representation of the body sounds to electrical connections;

    a circuit board carrying electronic components and connected to the electrical connections which processes the electrical representation of the body sounds;

    a universal serial bus (USB) interface receiving a digitized version of the electrical representation of the body sounds and configured to pass the digitized version of the processed electrical representation outside of the housing; and

    where the circuit board includes a backstop protruding toward a central area of the piezo element, and where the back stop is situated so as to prevent the piezo element from flexing beyond a point that would damage the piezo element.

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