See through absorbent dressing

• US 5,018,515 A
• Filed: 12/14/1987
• Issued: 05/28/1991
• Est. Priority Date: 12/14/1987
• Status: Expired due to Term

• Current Assignee: Kendall Company The Walpole Massachusetts
• Original Assignee: The Kendall Company (Colgate-Palmolive Company)
• Inventors: Gilman, Thomas
• Primary Examiner(s): Isabella, David J.
• Assistant Examiner(s): PREBILIC, PAUL B
• Application Number:
  US07/132,435
• Time in Patent Office: 1,261 Days
• Field of Search: 128/155, 128/156, 604/304, 604/307, 604/375, 604/370, 604/372, 604/364, 604/378, 604/383, 604/358, 604/360, 5/485, 5/502
• US Class Current: 602/52
• CPC Class Codes: A61F 13/023 wound covering film layers without a fluid retention layer
• CPC Class Codes: A61F 13/0276 Apparatus or processes for manufacturing adhesive dressings or bandages
• CPC Class Codes: A61F 13/1565 by depositing continuous layers of fibrous material between webs, e.g. wrapping layers of fibrous material
• CPC Class Codes: A61F 2013/00553 with detachable parts
• CPC Class Codes: A61F 2013/00604 Multilayer
• CPC Class Codes: A61F 2013/00744 containing non-woven
• CPC Class Codes: A61F 2013/00761 with permeable adhesive layers
• CPC Class Codes: A61F 2013/00846 with transparent or translucent part
• CPC Class Codes: A61F 2013/00868 thin film

Abstract

An absorbent dressing comprising, a transparent backing sheet having a relatively high water vapor permeability, a front sheet having a pressure sensitive adhesive on a front surface thereof for facing a wound with the front sheet and adhesive having a plurality of apertures extending therethrough, and an absorbent layer intermediate the front sheet and backing sheet having a plurality of openings in register with the apertures of the front sheet, with the openings of the layer being at least as large as the apertures of the front sheet.

Claims

1. An absorbent dressing comprising:

a transparent backing sheet having a relatively high water vapor permeability;

a front sheet having a pressure sensitive adhesive on a front surface thereof for facing a wound, said front sheet and adhesive having a plurality of apertures in register extending therethrough; and

an absorbent layer intermediate the front sheet and backing sheet having a plurality of openings in register with the apertures of the front sheet, with the openings of the layer being at least as large as the apertures of the front sheet.

2. The dressing of claim 1 wherein the openings of the layer are larger than the apertures of the front sheet.

3. The dressing of claim 1 wherein the front sheet and backing sheet are sealed together around their periphery with the layer located inside the seal.

4. The dressing of claim 1 wherein the backing sheet and front sheet are heat sealed to the layer.

5. The dressing of claim 1 wherein the front sheet comprises an elastomer film highly permeable to water vapor.

6. The dressing of claim 1 wherein the backing sheet comprises an elastomer film.

7. The dressing of claim 1 wherein the layer comprises a nonwoven material.

8. The dressing of claim 1 wherein the layer comprises a needle punched fabric.

9. The dressing of claim 1 wherein the lateral dimensions of the dressing are greater than the wound on which it is placed.

10. The dressing of claim 1 including strips of tape having a nonporous highly water vapor permeable backing with an adhesive coating on a front surface thereof, said tape strips securing an edge of the backing sheet to the patient'"'"'s skin around the periphery of the dressing.

11. The dressing of claim 1 including a release sheet releasably attached on a front surface of the front sheet adhesive.