GB2466931A - Wound dressing for topical negative pressure therapy - Google Patents
Wound dressing for topical negative pressure therapy Download PDFInfo
- Publication number
- GB2466931A GB2466931A GB0900380A GB0900380A GB2466931A GB 2466931 A GB2466931 A GB 2466931A GB 0900380 A GB0900380 A GB 0900380A GB 0900380 A GB0900380 A GB 0900380A GB 2466931 A GB2466931 A GB 2466931A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wound
- pouches
- wound dressing
- pouch
- negative pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000002560 therapeutic procedure Methods 0.000 title description 4
- 230000000699 topical effect Effects 0.000 title description 4
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000004599 antimicrobial Substances 0.000 claims abstract description 4
- 239000003814 drug Substances 0.000 claims abstract description 4
- 210000000416 exudates and transudate Anatomy 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 206010052428 Wound Diseases 0.000 abstract description 52
- 208000027418 Wounds and injury Diseases 0.000 abstract description 52
- 230000001464 adherent effect Effects 0.000 abstract description 4
- 230000029663 wound healing Effects 0.000 abstract description 2
- 206010053692 Wound complication Diseases 0.000 abstract 1
- 230000000845 anti-microbial effect Effects 0.000 abstract 1
- 239000003610 charcoal Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000035876 healing Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000003102 growth factor Substances 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229940100890 silver compound Drugs 0.000 description 1
- 150000003379 silver compounds Chemical class 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/05—Bandages or dressings; Absorbent pads specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
- A61M1/91—Suction aspects of the dressing
- A61M1/916—Suction aspects of the dressing specially adapted for deep wounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/44—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with radio-opaque material or signalling means for residual material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00089—Wound bandages
- A61F2013/00217—Wound bandages not adhering to the wound
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
- A61F2013/15544—Permeability
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
- A61M1/91—Suction aspects of the dressing
- A61M1/912—Connectors between dressing and drainage tube
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Otolaryngology (AREA)
- Vascular Medicine (AREA)
- Materials For Medical Uses (AREA)
Abstract
The dressing comprises a pouch 10 consisting of fluid permeable outer layers 12, 14 enclosing a volume of permeable material 16, for example gauze. A plurality of these pouches 10 are placed within a wound cavity 20 to fill and conform to the shape of the wound cavity 20 and sealed within the wound cavity with a conduit 22 for supplying reduced pressure to the wound or provision for negative pressure may be provided on the wound cover 23. The outer layers 12, 14 of the pouches are non- adherent for ease of dressing changes and may be impregnated or coated with anti-microbials or medicaments to promote wound healing or with active charcoal to reduce wound odour. The pouches 10 can be manufactured in various sizes, shapes and in a sheet or a roll.
Description
The present invention relates to a dressing, in particular a wound dressing, for use in topical negative pressure therapy.
Wound dressings have been used in the medical field to facilitate the healing of chronic wounds. One technique has been to use topical negative pressure therapy, which was developed to allow excess wound fluids to be removed from the wound site while at the same time protecting the wound.
Various wound dressings exist to promote the healing of such chronic wounds. One such dressing is the application of a wound liner to the wound site and then applying layers of gauze to fill the wound cavity, a drain to apply negative pressure to the wound cavity and forming an air-tight seal over the gauze layers and drain.
The present invention seeks to make improvements.
Accordingly, the present invention comprises a wound dressing including a fluid permeable pouch enclosing a volume of fluid permeable material. Typically, the fluid permeable material can be gauze. The fluid permeable material can be in layers or separate, loose pieces.
Preferably, the pouch is made of non-adherent material on its uppermost and lower surfaces, sealed at the edges, and containing the volume of permeable material, such as gauze.
Conveniently, a plurality of pouches are placed within a wound cavity, a conduit for supplying reduced pressure to the wound cavity and a seal for positioning over the wound to substantially cover the pouches. Advantageously, the pouch(es) simplify the current layering construction used to fill a wound cavity. Instead of lining the wound with a non-adherent layer, then using individual layers of gauze along with a drain wrapped in gauze, the new system simply requires the insertion of enough pouches to fill the wound cavity, within which the conduit for supplying negative pressure can be placed between pouches, or alternatively, a connection for the supply of negative pressure can be provided on the seal covering the pouches.
More preferably, a radio-opaque marking is incorporated within the construction of the pouch to verify removal by X-Ray or to make the wound extent visible on X-Ray.
Advantageously, the pouches are formed in many different sizes, and even on a sheet or a roll. More preferably, the pouches are formed into different 3-D shapes, for example tetrahedrons or spheres or similar.
The pouches permit exudates from the wound to pass therethrough. The pouches have sufficient rigidity to substantially maintain respective shapes thereof to thereby facilitate passage of the exudates through spaces or passages defined between and through the adjacent pouches. The pouches contain gauze or a similar porous material. Some of the pouches can incorporate a medicament, anti-microbial agent or odour reducing agent.
The pouch enclosure material can be a fabric or polymeric material.
A negative pressure source is in fluid communication with the conduit. The negative pressure source can be any conventional vacuum pump.
In a preferred embodiment, the wound dressing includes a plurality of fluid permeable pouches disposed within a wound and adapted to permit exudates from the wound to pass therethrough, a seal to cover the pouches and negative pressure means for supplying reduced pressure to the wound.
An embodiment of the present invention is described below, by way of example only, with reference to the accompanying drawings, in which: Figures la and lb are schematic diagrams of wound dressings according to the present invention; Figure 2 is a schematic diagram of the wound dressing with the connection to negative pressure within on the wound cavity; Figure 3 is a schematic diagram of the wound dressing with the access to negative pressure on the seal; Referring to Figures la and ib, the wound dressing comprises a pouch 10 including an upper layer 12 and a lower layer 14 sealed together sufficient to enclose a volume of fluid permeable material 16, for example gauze. The upper 12 and lower layers may be sealed partially or completely to enclose a volume of fluid permeable material 16. A plurality of such pouches 10 are used to fill and conform to the shape of a wound cavity. The upper and lower layers 12, 14 of each pouch 10 are porous to permit exudates to pass from the wound cavity through the pouch 10. The upper and lower layers 12, 14 can also be non-adherent so that the pouches do not stick to the wound site.
Antimicrobial agents, antibiotics, hydrogels, silver compounds, growth factors, and similar medicaments can be added to the pouch or coated to the upper and lower layers 12, 14 to promote healing. Additionally, the pouches can have activated charcoal impregnated materials to reduce odour from the wound and can also incorporate compounds associated with wound healing requiring slow release and not direct contact with wound bed.
The pouches may be constructed with a radio-opaque marking or stripe to verify removal by X-Ray or to make the wound extent visible on X-Ray.
Pouches 10 can be provided in a sheet or a roll to allow the wound dressing to be sized to wounds of different shapes and sizes. The sheets or rolls can have perforations surrounding each pouches so that the pouches can be detached from the sheets or rolls as required.
In use, a plurality of pouches 10 are placed within a wound cavity 20 to fill and conform to the shape of the cavity 20. A wound cover 21 is then placed in contact with the skin around the perimeter of the wound and secured by adhesives or similar to provide an air-tight seal. A conduit 22 is arranged within the cavity 20 to supply negative pressure or an access 23 to a negative pressure is provided on the wound cover 21. The wound cover 21 may be any conventional wound cover known in the art.
The wound dressing of the invention is simpler to apply than gauze layers, for all sizes of wounds, and allows the skin and tissue to be stapled to the pouches for temporary surgical closure as can sometimes be necessary with topical negative therapy. Additionally, the pouches 10 eliminate any possibilities of fragments of gauze being left behind in wound bed, which can cause inflammation and abscesses.
Claims (7)
- CLAIMS1. A wound dressing comprising a fluid permeable pouch enclosing a volume of fluid permeable material.
- 2. A wound dressing as claimed in claim 1 wherein the pouch comprises upper and lower layers of non -adherent material, the layers being sealed at their edges, and containing the volume of permeable material within.
- 3. A wound dressing as claimed in claims 1 or 2 wherein a radio-opaque mark is incorporated within the construction of the pouch to verify removal by X-Ray or to make the wound extent visible on X-Ray
- 4. A wound dressing as claimed in claims 1 to 3 wherein the pouch is formed in a sheet or a roll.
- 5. A wound dressing as claimed in claims ito 4 wherein the pouches are of different sizes and shapes.
- 6. A wound dressing as claimed in claims 1 to 3 wherein at least some of the pouches include a medicament, or anti-microbial agent or odour reducing agent.
- 7. A wound dressing as claimed in claim 1 wherein there are a plurality of pouches disposed within a wound and adapted to permit exudates from the wound to pass therethrough, a seal to cover the pouches and negative pressure means for supplying reduced pressure to the wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0900380A GB2466931A (en) | 2009-01-12 | 2009-01-12 | Wound dressing for topical negative pressure therapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0900380A GB2466931A (en) | 2009-01-12 | 2009-01-12 | Wound dressing for topical negative pressure therapy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0900380D0 GB0900380D0 (en) | 2009-02-11 |
| GB2466931A true GB2466931A (en) | 2010-07-14 |
Family
ID=40379408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0900380A Withdrawn GB2466931A (en) | 2009-01-12 | 2009-01-12 | Wound dressing for topical negative pressure therapy |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2466931A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014113249A3 (en) * | 2013-01-16 | 2015-04-30 | Kci Licensing, Inc. | Ion exchange enhanced absorbent systems |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2877765A (en) * | 1956-07-13 | 1959-03-17 | Bunyan John | Surgical dressings, bandages and the like |
| US3703897A (en) * | 1969-10-09 | 1972-11-28 | Kendall & Co | Hydrophobic non-adherent wound dressing |
| US5632731A (en) * | 1994-11-25 | 1997-05-27 | The Kendall Company | Non-adherent wound dressing |
| WO1999053879A1 (en) * | 1998-04-21 | 1999-10-28 | Shippert Ronald D | Medical absorbent pack substantially free of unwanted adhesion properties |
| US20040054338A1 (en) * | 2002-09-13 | 2004-03-18 | Farhad Bybordi | Closed wound drainage system |
| US20040138601A1 (en) * | 2001-05-16 | 2004-07-15 | Chalmers Susanna Elizabeth | Wound dressings and wound treatment compositions |
| US20070185463A1 (en) * | 2006-02-07 | 2007-08-09 | Tyco Heal Thcare Group Lp | Surgical wound dressing |
| US20070265586A1 (en) * | 2006-05-11 | 2007-11-15 | Joshi Ashok V | Device and method for wound therapy |
| WO2008131894A1 (en) * | 2007-04-29 | 2008-11-06 | Iskia Gmbh & Co. Kg | Drainage means for carrying out vacuum-assisted wound treatment |
-
2009
- 2009-01-12 GB GB0900380A patent/GB2466931A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2877765A (en) * | 1956-07-13 | 1959-03-17 | Bunyan John | Surgical dressings, bandages and the like |
| US3703897A (en) * | 1969-10-09 | 1972-11-28 | Kendall & Co | Hydrophobic non-adherent wound dressing |
| US5632731A (en) * | 1994-11-25 | 1997-05-27 | The Kendall Company | Non-adherent wound dressing |
| WO1999053879A1 (en) * | 1998-04-21 | 1999-10-28 | Shippert Ronald D | Medical absorbent pack substantially free of unwanted adhesion properties |
| US20040138601A1 (en) * | 2001-05-16 | 2004-07-15 | Chalmers Susanna Elizabeth | Wound dressings and wound treatment compositions |
| US20040054338A1 (en) * | 2002-09-13 | 2004-03-18 | Farhad Bybordi | Closed wound drainage system |
| US20070185463A1 (en) * | 2006-02-07 | 2007-08-09 | Tyco Heal Thcare Group Lp | Surgical wound dressing |
| US20070265586A1 (en) * | 2006-05-11 | 2007-11-15 | Joshi Ashok V | Device and method for wound therapy |
| WO2008131894A1 (en) * | 2007-04-29 | 2008-11-06 | Iskia Gmbh & Co. Kg | Drainage means for carrying out vacuum-assisted wound treatment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014113249A3 (en) * | 2013-01-16 | 2015-04-30 | Kci Licensing, Inc. | Ion exchange enhanced absorbent systems |
| EP3607977A1 (en) * | 2013-01-16 | 2020-02-12 | KCI Licensing, Inc. | Ion exchange enhanced absorbent systems |
| US10973962B2 (en) | 2013-01-16 | 2021-04-13 | Kci Licensing, Inc. | Ion exchange enhanced absorbent systems |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0900380D0 (en) | 2009-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |