Underpad with wetness indicator
AssigneeMedline Industries, Inc.
InventorsAlyssa Kurt, Cole Fuerste, Morgan Uridil, Jessica Iacullo, Danielle Calverley, Kushal Basnet, Jacob Sessions
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Abstract
An underpad for covering a patient support structure includes an upper, patient facing surface and a lower, support structure facing surface. The underpad includes a liquid permeable patient facing layer and a liquid impermeable base layer. An absorbent layer is positioned above the base layer and below the patient facing layer, and a tissue layer is positioned above the absorbent layer and below the patient facing layer. An ink is deposited on the tissue layer. The ink is more readily visible through the patient facing layer than through the base layer.
Claims20
An underpad for covering a patient support structure, the underpad comprising an upper, patient facing surface and a lower, support structure facing surface, the underpad further comprising:
- a patient facing layer comprising a liquid permeable material, wherein the patient facing layer forms at least a portion of the underpad upper surface;
- an upper tissue layer comprising a liquid permeable material, the upper tissue layer being disposed adjacent to and below a lower surface of the patient facing layer;
- an absorbent layer comprising a liquid absorbing material, the absorbent layer being disposed adjacent to and below a lower surface of the tissue layer;
- a base layer comprising a liquid impermeable material, the base layer being disposed below a lower surface of the absorbent layer and forming at least a portion of the underpad lower surface;
- and
- a dye deposited on a surface of the upper tissue layer;
- wherein the dye is visible through the patient facing layer from the underpad upper surface prior to the dye being exposed to a liquid;
- wherein the dye is less visible from the underpad lower surface;
- and
- wherein a change in the dye is visually perceptible through the patient facing layer from the underpad upper surface subsequent to the dye being exposed to a liquid and without lifting the underpad from the patient support structure.
An underpad for covering a patient support structure, the underpad comprising an upper, patient facing surface and a lower, support structure facing surface, the underpad further comprising:
- a patient facing layer comprising a liquid permeable material, wherein the patient facing layer forms at least a portion of the underpad upper surface;
- an upper tissue layer comprising a liquid permeable material, the upper tissue layer being disposed adjacent to and below a lower surface of the patient facing layer;
- an absorbent layer comprising a liquid absorbing material, the absorbent layer being disposed adjacent to and below a lower surface of the tissue layer;
- a lower tissue layer comprising a liquid permeable material, the lower tissue layer being disposed adjacent to and below a lower surface of the absorbent layer
- a base layer comprising a liquid impermeable material, the base layer being disposed below a lower surface of the absorbent layer and forming at least a portion of the underpad lower surface;
- and
- a wetness indicator ink deposited on a surface of the upper tissue layer;
- wherein the patient facing layer has an opacity of less than 0.80 using a diffuse opacity method (R0/R∞);
- and
- wherein the absorbent layer has an opacity of greater than 0.80 using a diffuse opacity method (R0/R∞).
An underpad for covering a patient support structure, the underpad comprising an upper, patient facing surface and a lower, support structure facing surface, the underpad further comprising:
- a patient facing layer comprising a liquid permeable material, wherein the patient facing layer forms at least a portion of the underpad upper surface;
- an upper tissue layer comprising a liquid permeable material, the upper tissue layer being disposed adjacent to and below a lower surface of the patient facing layer;
- an absorbent layer comprising a liquid absorbing material, the absorbent layer being disposed adjacent to and below a lower surface of the tissue layer;
- a base layer comprising a liquid impermeable material, the base layer being disposed below a lower surface of the absorbent layer and forming at least a portion of the underpad lower surface;
- and
- a dye deposited on a surface of the upper tissue layer;
- wherein the dye is not visible through the patient facing layer from the underpad upper surface prior to the dye being exposed to a liquid;
- wherein the dye is visible through the patient facing layer from the underpad upper surface subsequent to the dye being exposed to a liquid;
- wherein the dye is less visible from the underpad lower surface;
- and
- wherein a change in the dye is visually perceptible through the patient facing layer from the underpad upper surface subsequent to the dye being exposed to a liquid and without lifting the underpad from the patient support structure.
Dependencies are inferred from the claim text.