Wound care article for extraction and control of wound fluids

• US 8,672,905 B2
• Filed: 09/28/2007
• Issued: 03/18/2014
• Est. Priority Date: 10/02/2006
• Status: Active Grant

• Current Assignee: BSN Medical GmbH (Essity AB)
• Original Assignee: Birgit Riesinger
• Inventors: Riesinger, Birgit
• Primary Examiner(s): SU, SUSAN SHAN
• Application Number:
  US12/443,989
• Publication Number:
  US 20100262090A1
• Time in Patent Office: 2,363 Days
• Field of Search: 604/304, 424/445, 424/447, 602/54
• US Class Current: 604/304
• CPC Class Codes: A61F 13/00063 comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic drug delivery dressings A61K9/70; chemical aspect of the additives A61L15/00
• CPC Class Codes: A61F 13/01017 synthetic, e.g. polymer based
• CPC Class Codes: A61F 13/01038 Flexibility, stretchability or elasticity
• CPC Class Codes: A61F 13/01042 Absorbency
• CPC Class Codes: A61F 13/01046 Air-vapor permeability
• CPC Class Codes: A61F 13/069 Decubitus ulcer bandages
• CPC Class Codes: A61F 13/08 Elastic stockings; for contracting aneurisms
• CPC Class Codes: A61F 13/45 characterised by the shape cup-shaped type tampons A61F13/2045
• CPC Class Codes: A61F 13/538 characterised by specific fibre orientation or weave
• CPC Class Codes: A61F 15/00 Auxiliary appliances for wound dressings; Dispensing containers for dressings or bandages packaging of absorbent articles such as diapers, feminine hygiene absorbing pads or tampons A61F13/551; packaging of wound dressings A61F13/00072
• CPC Class Codes: A61F 2013/00136 anisotropy
• CPC Class Codes: A61F 2013/00153 coloured or with decoration pattern or printing
• CPC Class Codes: A61F 2013/00157 for burns or skin transplants A61F2013/00187 takes precedence; not adhering to the wound A61F2013/00217
• CPC Class Codes: A61F 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00229 with alginate
• CPC Class Codes: A61F 2013/00246 in a special way pervious to air or vapours
• CPC Class Codes: A61F 2013/00519 for treating burn bandages for burns or skin transplants A61F2013/00157
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/0054 for deep wounds
• CPC Class Codes: A61F 2013/00617 with different hardness
• CPC Class Codes: A61F 2013/00731 : with absorbing pads
• CPC Class Codes: A61F 2013/0074 : containing foams
• CPC Class Codes: A61F 2013/00748 : with hydrocolloids or superabsorbers wound bandages with alginate A61F2013/00229; plasters with cyano-acrylic adhesive A61F2013/00459; plasters for treating burn with hydrogel A61F2013/00523; adhesive for plasters, with hydrogel A61F2013/00676; water-based A61F2013/00689; for use on mucosae A61F2013/00714; for use on wounds A61F2013/00719; with absorbent adhesives A61F2013/00757; with fumed silica A61F2013/00787; with viscoelastic oil-elastomer gel A61F2013/00893
• CPC Class Codes: A61F 2013/00855 : pervious to air or vapours wound bandages in a special way pervious to air or vapour A61F2013/00246
• CPC Class Codes: A61F 2013/00914 : with deodorising or perfuming means
• CPC Class Codes: A61F 2013/00927 : with biological activity, e.g. enzymes for debriding wounds or others, collagen or growth factors
• CPC Class Codes: A61F 2013/00936 : metal wound bandages with a metallic layer A61F2013/00234
• CPC Class Codes: A61F 2013/4518 : formed from two separated panels
• CPC Class Codes: A61F 2013/530802 : characterized by the foam or sponge other than superabsorbent A61F2013/530649 takes precedence

Abstract

The subject of the invention is a wound care article for extraction and control of wound fluids, comprising at least one first fluid-absorbing structure (1; 10; 36), which is surrounded by a liquid-permeable, first enclosure (2),

and a liquid-permeable, second enclosure (3) comprising two enclosing surfaces (13.1, 13.2). The wound care article is thus characterized in that the first enclosure (2) is covered or supported on at least one of its flat sides (4.1, 4.2) by at least one fluid-absorbing material layer (6.1, 6.2; 6.3), which is arranged (FIG. 1a) between the first enclosure (2) and one of the enclosing surfaces (13.1, 13.2) of the second enclosure (3).

Claims

1. A wound care article for extraction and control of wound fluids, comprising:

at least one first fluid-absorbing structure, which is surrounded by a liquid-permeable first enclosure, and

a second enclosure comprising two enclosing surfaces, wherein the first enclosure is covered or supported on at least one of its flat sides by at least one fluid-absorbing material layer arranged between the first enclosure and one of the enclosing surfaces of the second enclosure, the first fluid-absorbing structure is a fleece-like pad, and the fluid-absorbing material layer consists of foam material and is affixed to the enclosing sheet of the first enclosure by means of at least one adhesive point or an adhesive line.

2. The wound care article of claim 1, wherein the foam material contains a silver compound.

3. A wound care article for extraction and control of wound fluids, comprising:

at least one first fluid-absorbing structure, which is surrounded by a liquid-permeable first enclosure, and

a second enclosure comprising two enclosing surfaces, wherein the first enclosure is covered or supported on at least one of its flat sides by at least one fluid-absorbing material layer arranged between the first enclosure and one of the enclosing surfaces of the second enclosure, the first fluid-absorbing structure is a fleece-like pad, the fluid-absorbing material layer consists of foam material, and the first fluid-absorbing structure is freely movable within the first enclosure.

4. The wound care article of claim 3, wherein the foam material contains a silver compound.

5. A wound care article for extraction and control of wound fluids, comprising:

at least one first fluid-absorbing structure, which is surrounded by a liquid-permeable first enclosure, and

a second enclosure comprising two enclosing surfaces, wherein the first enclosure is covered or supported on at least one of its flat sides by at least one fluid-absorbing material layer arranged between the first enclosure and one of the enclosing surfaces of the second enclosure, the first fluid-absorbing structure is a fleece-like pad, the fluid-absorbing material layer consists of foam material, and the enclosing surfaces of the second enclosure comprise in each case peripheral adhesive strips on both of its flat sides.

6. The wound care article according to claim 5, characterized in that the adhesive strips are in each case provided with a removable, sheet-like protective strip.

7. A wound care article for extraction and control of wound fluids, comprising:

at least one first fluid-absorbing structure, which is surrounded by a liquid-permeable first enclosure, and

a second enclosure comprising two enclosing surfaces, wherein the first enclosure is covered or supported on at least one of its flat sides by at least one fluid-absorbing material layer arranged between the first enclosure and one of the enclosing surfaces of the second enclosure, the first fluid-absorbing structure is a fleece-like pad, and the fluid-absorbing material layer consists of integral skin foam.

8. A wound care article for extraction and control of wound fluids, comprising:

at least one first fluid-absorbing structure, which is surrounded by a liquid-permeable first enclosure, and

a second enclosure comprising two enclosing surfaces, wherein the first enclosure is covered or supported on at least one of its flat sides by at least one fluid-absorbing material layer arranged between the first enclosure and one of the enclosing surfaces of the second enclosure, the first fluid-absorbing structure is a fleece-like pad, the fluid-absorbing material layer consists of foam material, at least one of the enclosing surfaces of the second enclosure is covered by a covering sheet, and the covering sheet extends beyond the periphery of the wound care article and is attachable to the skin surrounding the wound.

9. A wound care article for extraction and control of wound fluids, comprising:

at least one first fluid-absorbing structure, which is surrounded by a liquid-permeable first enclosure, and

a second enclosure comprising two enclosing surfaces, wherein the first enclosure is covered or supported on at least one of its flat sides by at least one fluid-absorbing material layer arranged between the first enclosure and one of the enclosing surfaces of the second enclosure, the first fluid-absorbing structure is a fleece-like pad, the fluid-absorbing material layer consists of foam material, at least one of the enclosing surfaces of the second enclosure is covered by a covering sheet, and the covering sheet is 5% to 300% larger in surface area than the enclosing surface of the second enclosure.

10. A wound care article for extraction and control of wound fluids, comprising:

at least one first fluid-absorbing structure, which is surrounded by a liquid-permeable first enclosure, and

a second enclosure comprising two enclosing surfaces, wherein the first enclosure is covered or supported on at least one of its flat sides by at least one fluid-absorbing material layer arranged between the first enclosure and one of the enclosing surfaces of the second enclosure, the first fluid-absorbing structure is a fleece-like pad, the fluid-absorbing material layer consists of foam material, at least one of the enclosing surfaces of the second enclosure is covered by a covering sheet, and the covering sheet is elastically and/or plastically stretchable and/or deformable, such that the respective maximum volume increase of the wound care article during the absorption process is fundamentally not inhibited.

11. A wound care article for extraction and control of wound fluids, comprising:

at least one first fluid-absorbing structure, which is surrounded by a liquid-permeable first enclosure, and

a second enclosure comprising two enclosing surfaces, wherein the first enclosure is covered or supported on at least one of its flat sides by at least one fluid-absorbing material layer arranged between the first enclosure and one of the enclosing surfaces of the second enclosure, the first fluid-absorbing structure is a fleece-like pad, the fluid-absorbing material layer consists of foam material, at least one of the enclosing surfaces of the second enclosure is covered by a covering sheet, and the article is substantially white or naturally coloured, characterized in that after application to a wound and direct moistening with the wound fluid, the wound care article marks the respective wound areas and the exterior contour of the wound in colour through the retention of the wound covering'"'"'s originally-coloured surface areas, whereby the wound covering reaches past the respective wound edge in the applied condition of the absorbing structure, and covers healthy skin areas all around the wound, and that the wound covering changes in thickness in such a manner, in that the thickness increases proportionally corresponding to the local absorption conditions, through osmotic or atmospheric pressure conditions;

whereas the original thickness of the pad remains unchanged for the mentioned adjoining surface areas.