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Acoustic sensor assembly

  • US 9,795,358 B2
  • Filed: 08/06/2015
  • Issued: 10/24/2017
  • Est. Priority Date: 12/30/2008
  • Status: Active Grant
First Claim
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1. An acoustic sensor assembly comprising:

  • a sensor sub-assembly comprising;

    a frame,a sensing element stretched in tension across an open cavity of the frame and configured to generate a signal responsive to acoustic vibrations, wherein the sensing element comprises a piezoelectric material, andan acoustic coupler supported by the frame, wherein the acoustic coupler extends into the open cavity and is positioned to apply pressure to the sensing element to push at least a section of the sensing element into the open cavity; and

    a patient attachment portion attached to a top portion of the sensor sub-assembly that is opposite a portion of the sensor sub-assembly configured to be placed against a tissue site of a medical patient, wherein the patient attachment portion comprises;

    an elastic portion; and

    an attachment layer comprising a first side including an adhesive surface and a second side opposite the first side, wherein;

    the attachment layer extends between an inner periphery of the attachment layer proximate the sensor sub-assembly and an outer periphery of the attachment layer distal the sensor sub-assembly,the elastic portion attaches to the top portion of the sensor sub-assembly and extends to the second side of the attachment layer,the elastic portion is attached to the attachment layer on the second side of the attachment layer and at a point between the inner periphery and the outer periphery of the attachment layer,the patient attachment portion is configured to enable attachment of the acoustic sensor assembly to the medical patient via user attachment of the adhesive surface to the tissue site of the medical patient, andthe frame, the adhesive surface, and the elastic portion are arranged with respect to one another such that attachment of the adhesive surface to the tissue site of the medical patient causes deformation of the elastic portion and a resulting force to press the sensor sub-assembly against the tissue site of the medical patient.

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