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Vented emergency wound dressings

  • US 9,452,088 B2
  • Filed: 04/08/2014
  • Issued: 09/27/2016
  • Est. Priority Date: 03/26/2009
  • Status: Active Grant
First Claim
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1. A wound dressing, comprising:

  • a backing layer having a periphery, a front surface with an adhesive layer adapted for patient contact and a back surface facing away from the patient;

    a preformed hydrogel pad having a periphery attached to the front surface of the backing layer, the hydrogel pad and backing layer both further including aligned central apertures;

    the periphery of the hydrogel pad being less than that of the backing layer such that a ring of the adhesive layer remains exposed around the hydrogel pad;

    a cover peripherally bonded directly to the back surface of the backing layer so as to create an expandable pocket between the cover and the back surface of the backing layer;

    wherein the cover includes at least one vent hole through the cover such that pressure from the wound temporarily expands the pocket, enabling liquids or gasses from the wound to be vented through the apertures, through the pocket, and out the at least one vent hole to atmosphere; and

    after the pressure is relieved or with negative pressure, the cover falls back onto the backing layer, thereby eliminating the pocket between the cover and the back surface of the backing layer and maintaining a seal around the wound.

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