WO2008062176A1 - Wound dressing with a perforated non-adhesive skin-contacting layer and adhesive on the non-skin contacting surface of said layer - Google Patents
Wound dressing with a perforated non-adhesive skin-contacting layer and adhesive on the non-skin contacting surface of said layer Download PDFInfo
- Publication number
- WO2008062176A1 WO2008062176A1 PCT/GB2007/004442 GB2007004442W WO2008062176A1 WO 2008062176 A1 WO2008062176 A1 WO 2008062176A1 GB 2007004442 W GB2007004442 W GB 2007004442W WO 2008062176 A1 WO2008062176 A1 WO 2008062176A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adhesive
- layer
- dressing
- skin
- layers
- Prior art date
Links
- 239000000853 adhesive Substances 0.000 title claims description 54
- 230000001070 adhesive effect Effects 0.000 title claims description 53
- 230000002745 absorbent Effects 0.000 claims description 9
- 239000002250 absorbent Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 229920006264 polyurethane film Polymers 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 229920001661 Chitosan Polymers 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 229940072056 alginate Drugs 0.000 claims description 2
- 235000010443 alginic acid Nutrition 0.000 claims description 2
- 229920000615 alginic acid Polymers 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 2
- 239000000416 hydrocolloid Substances 0.000 claims description 2
- 239000000017 hydrogel Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 62
- 208000027418 Wounds and injury Diseases 0.000 description 14
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000001266 bandaging Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Classifications
-
- 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
- A61F13/02—Adhesive bandages or dressings
- A61F13/0203—Adhesive bandages or dressings with fluid retention members
Definitions
- This invention generally relates to medical dressings, including wound dressings.
- 25 bandaging is a complex two-handed process and there is a risk that during application the dressing could slip from the wound site or fall off altogether.
- a wound dressing that is temporarily adhesive when it is first applied to a wound site, being capable of reverting to a non-adhesive 30 dressing post-application is particularly desirable.
- a wound dressing 35 comprising at least two layers, the first layer being perforated and having a non-adhesive skin contacting surface, wherein an adhesive is provided between the two layers such that upon application of pressure to the second layer the adhesive is caused to temporarily exude through the perforations of the first layer, thereby providing temporary adhesion of the dressing to the skin.
- the adhesive can be provided as a continuous or non-continuous film between the first and second layers.
- the adhesive can be pattern spread onto a surface of at least one of the first or second layers.
- the adhesive can be provided at or near the periphery of the dressing. It is however important that any continuous film of adhesive is provided with an adequate number of perforations to ensure that the adhesive itself is vapour-permeable.
- the adhesive desirably displays low tack characteristics.
- Suitable adhesive include acrylic-, rubber- or silicone-based adhesives which can be formulated to have minimal adhesion to the human skin.
- the invention is not limited to the use of low tack adhesives, because the dressing is designed such that the adhesive will only temporarily contact the skin.
- the first layer is a polyurethane film which is applied directly to the skin.
- the second layer is an absorbent layer.
- This absorbent layer can comprise polyurethane foam (such as ALLEVYN®, TJ Smith & Nephew Limited), chitosan, alginate, hydrocolloid, hydrogel or carboxymethyl cellulose.
- the first and second layers can be adjacent layers. Pressure can be applied to the second layer either directly or indirectly.
- the dressing consists of two layers: a first layer having a skin-contacting surface and a second layer.
- This second layer can be an absorbent layer, for example polyurethane foam.
- the dressing comprises further layers.
- a moisture vapour permeable layer can form a third and upper layer.
- the second layer forms a middle layer.
- Application of pressure to the second layer is therefore indirect, via pressure applied and transmitted through the third layer.
- the second layer is not necessarily adjacent to the first layer.
- the dressings can consist of three or more layers.
- the second layer can be located several layers apart from the first layer. If the adhesive is provided on the lower surface of the second layer, as long as the intermediate layers are sufficiently porous to allow transport of the adhesive, then application of the pressure to the second layer will force the adhesive through the porous intermediate layers and exude through the porous first layer. In these circumstances the adhesive may not necessarily return completely to its original position.
- the pressure applied can be homogenous across the dressing, for example, by the user applying pressure with the palm of his hand.
- the pressure can be applied focally to at least one part of the dressing, for example, by the user applying pressure with a single digit, such as the index finger.
- a method of manufacturing a dressing capable of temporary adhesion to a site comprising the step of providing an adhesive between two layers of the dressing, wherein the first layer is perforated and has a non- adhesive skin contacting surface, the adhesive being provided such that, in use, application of pressure to the second layer causes the adhesive to temporarily exude through the perforations of the first layer onto the skin layer.
- a method of applying a temporarily adhesive dressing to a site comprising the steps of; i) providing a dressing comprising at least two layers, the first layer being perforated and having a non-adhesive skin contacting surface, wherein an adhesive is provided between the two layers; ii) placing the dressing on the skin; and, iii) . applying pressure to the second layer so as to cause the adhesive to temporarily exude through the perforated first layer.
- a dressing according to the invention is shown as a schematic in Figure 1.
- the dressing 1 consists of an absorbent layer 2 made of polyurethane, cut into slices of about 3mm or 6mm.
- a moisture vapour permeable layer 3 made of polyurethane film is heat laminated to the absorbent layer.
- An adhesive layer 4 consisting of an acrylic adhesive is transfer coated onto the lower surface of the absorbent layer.
- a wound contact layer 5 made of non-adhesive; perforated polyurethane film is applied to the adhesive layer.
- the dressing can be cut to an appropriate size and the edges can be sealed.
- the first layer is the wound contact layer 5 and the second layer is the absorbent layer 2.
- Application of pressure by a user to the upper surface of the dressing, in the direction illustrated by the Arrow "A" causes the adhesive to temporarily exude through the perforations of the wound contact layer 5, thus allowing temporary adhesion of the dressing to the skin. Release of pressure causes the adhesive to return along its path to its original position.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Materials For Medical Uses (AREA)
Abstract
A packaging device is disclosed. The device has a body with a first end and a second end. The device also has a first closure member defining a first aperture and that is rotatably mounted to the first end. The device further has a first flexible tubular member mounted to the first closure member and to the second end of the body so as to receive an object via the first aperture. There is also a second flexible member mounted to the first closure member and to the first end of the body. Rotation of the first closure member relative to the body causes twisting of the second flexible member and results in opening and closing of the first aperture.
Description
WOUND DRESSING WITH A PERFORATED NON-ADHESIVE SKIN- CONTACTING LAYER AND ADHESIVE ON THE NON-SKIN CONTACTING SURFACE OF SAID LAYER
5 This application claims priority from provisional application no. GB0623196.3 filed' on 21 November 2006, which is herein incorporated by reference.
FIELD OF THE INVENTION 10
This invention generally relates to medical dressings, including wound dressings.
BACKGROUND TO THE INVENTION
15
Manufacturers of wound dressings are increasingly recognising the need to provide "atraumatic" products which minimise trauma to the wound and the surrounding wound margin and also prevent pain and trauma both peri- and post-application. This has led to the development of non-adhesive
20 wound dressings, the lack of adhesive allowing the use of the most suitable retention methods, for example, tape onto intact skin, appropriate bandaging or a film dressing.
However, the fastening of a non-adhesive dressing to a wound site by
25 bandaging is a complex two-handed process and there is a risk that during application the dressing could slip from the wound site or fall off altogether.
Therefore a wound dressing that is temporarily adhesive when it is first applied to a wound site, being capable of reverting to a non-adhesive 30 dressing post-application is particularly desirable.
SUMMARY OF THE INVENTION
According to an aspect of the invention there is provided a wound dressing 35 comprising at least two layers, the first layer being perforated and having a non-adhesive skin contacting surface, wherein an adhesive is provided
between the two layers such that upon application of pressure to the second layer the adhesive is caused to temporarily exude through the perforations of the first layer, thereby providing temporary adhesion of the dressing to the skin.
The adhesive can be provided as a continuous or non-continuous film between the first and second layers. For example, the adhesive can be pattern spread onto a surface of at least one of the first or second layers. Alternatively the adhesive can be provided at or near the periphery of the dressing. It is however important that any continuous film of adhesive is provided with an adequate number of perforations to ensure that the adhesive itself is vapour-permeable.
The adhesive, utilised desirably displays low tack characteristics. Suitable adhesive include acrylic-, rubber- or silicone-based adhesives which can be formulated to have minimal adhesion to the human skin.
The invention is not limited to the use of low tack adhesives, because the dressing is designed such that the adhesive will only temporarily contact the skin.
In embodiments of the invention the first layer is a polyurethane film which is applied directly to the skin.
In embodiments of the invention the second layer is an absorbent layer. This absorbent layer can comprise polyurethane foam (such as ALLEVYN®, TJ Smith & Nephew Limited), chitosan, alginate, hydrocolloid, hydrogel or carboxymethyl cellulose.
The first and second layers can be adjacent layers. Pressure can be applied to the second layer either directly or indirectly.
In embodiments of the invention the dressing consists of two layers: a first layer having a skin-contacting surface and a second layer. This second layer can be an absorbent layer, for example polyurethane foam.
Application of pressure directly to the upper surface of the second layer
causes the adhesive provided between the second and first layers to exude through the perforations of the first layer and to temporarily contact the skin.
In alternative embodiments of the invention the dressing comprises further layers. For example a moisture vapour permeable layer can form a third and upper layer. The second layer forms a middle layer. Application of pressure to the second layer is therefore indirect, via pressure applied and transmitted through the third layer.
There is no limit to the number of layers which form the dressing.
It is also envisaged that the second layer is not necessarily adjacent to the first layer. For example the dressings can consist of three or more layers. The second layer can be located several layers apart from the first layer. If the adhesive is provided on the lower surface of the second layer, as long as the intermediate layers are sufficiently porous to allow transport of the adhesive, then application of the pressure to the second layer will force the adhesive through the porous intermediate layers and exude through the porous first layer. In these circumstances the adhesive may not necessarily return completely to its original position.
The pressure applied can be homogenous across the dressing, for example, by the user applying pressure with the palm of his hand. Alternatively the pressure can be applied focally to at least one part of the dressing, for example, by the user applying pressure with a single digit, such as the index finger.
According to a further aspect of the invention there is provided a method of manufacturing a dressing capable of temporary adhesion to a site, the method comprising the step of providing an adhesive between two layers of the dressing, wherein the first layer is perforated and has a non- adhesive skin contacting surface, the adhesive being provided such that, in use, application of pressure to the second layer causes the adhesive to temporarily exude through the perforations of the first layer onto the skin layer.
According to a further aspect of the invention there is provided a method of applying a temporarily adhesive dressing to a site comprising the steps of; i) providing a dressing comprising at least two layers, the first layer being perforated and having a non-adhesive skin contacting surface, wherein an adhesive is provided between the two layers; ii) placing the dressing on the skin; and, iii) . applying pressure to the second layer so as to cause the adhesive to temporarily exude through the perforated first layer.
The following examples are illustrative of the principles and practice of the invention. Numerous additional embodiments within the scope and spirit of the invention will become apparent to those skilled in the art.
Example 1
A dressing according to the invention is shown as a schematic in Figure 1. The dressing 1 consists of an absorbent layer 2 made of polyurethane, cut into slices of about 3mm or 6mm. A moisture vapour permeable layer 3 made of polyurethane film is heat laminated to the absorbent layer. An adhesive layer 4 consisting of an acrylic adhesive is transfer coated onto the lower surface of the absorbent layer. A wound contact layer 5 made of non-adhesive; perforated polyurethane film is applied to the adhesive layer. The dressing can be cut to an appropriate size and the edges can be sealed.
In this embodiment the first layer is the wound contact layer 5 and the second layer is the absorbent layer 2. Application of pressure by a user to the upper surface of the dressing, in the direction illustrated by the Arrow "A", causes the adhesive to temporarily exude through the perforations of the wound contact layer 5, thus allowing temporary adhesion of the dressing to the skin. Release of pressure causes the adhesive to return along its path to its original position.
Claims
1. A dressing comprising at least two layers, the first layer being perforated and having a non-adhesive skin contacting surface, wherein an adhesive is provided between the two layers such that upon application of pressure to the second layer the adhesive is caused to temporarily exude through the perforations of the first layer, thereby providing temporary adhesion of the dressing to the skin.
2. A dressing according to claim 1 , wherein the adhesive is provided as a non-continuous layer.
3. A dressing according to claim 1 or 2, wherein the adhesive is provided is pattern-spread onto a surface of at least one of layers.
4. A dressing according to claim 1 or 2, wherein the adhesive is provided at or near the periphery of the dressing.
5. A dressing according to any preceding claim, wherein the adhesive is an acrylic-, rubber- or silicone-based adhesive.
6. A dressing according to any preceding claim, wherein the first layer is a polyurethane film.
7. A dressing according to any preceding claim, wherein the second layer is an absorbent layer.
8. A dressing according to claim 7, wherein the absorbent layer is selected from polyurethane foam, chitosan, alginate, hydrocolloid, hydrogel or carboxymethyl cellulose.
9. A method of manufacturing a dressing capable of temporary adhesion to a site, the method comprising the step of providing an adhesive between two layers of the dressing, wherein the first layer is perforated and has a non-adhesive skin contacting surface, the adhesive being provided such that, in use, application of pressure to the second layer causes the adhesive to temporarily exude through the perforations of the first layer.
10. A method of applying a temporarily adhesive dressing to a site comprising the steps of; i) providing a dressing comprising at least two layers, the first layer being perforated and having a non-adhesive skin contacting surface, wherein an adhesive is provided between the two layers; ii) placing the dressing on the skin; and, iii) applying pressure to the second layer so as to cause the adhesive to temporarily exude through the perforated first layer.
11. A dressing as substantially herein described with reference to the accompanying Examples and Figure 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0623196.3 | 2006-11-21 | ||
| GB0623196A GB0623196D0 (en) | 2006-11-21 | 2006-11-21 | Dressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008062176A1 true WO2008062176A1 (en) | 2008-05-29 |
Family
ID=37605661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/GB2007/004442 WO2008062176A1 (en) | 2006-11-21 | 2007-11-21 | Wound dressing with a perforated non-adhesive skin-contacting layer and adhesive on the non-skin contacting surface of said layer |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB0623196D0 (en) |
| WO (1) | WO2008062176A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2922516B1 (en) | 2012-12-18 | 2016-06-15 | Systagenix Wound Management IP Co. BV. | Wound dressing with adhesive margin |
| EP2968012B1 (en) | 2013-03-14 | 2017-04-26 | KCI Licensing, Inc. | Absorbent dressing with hybrid drape |
| US9956121B2 (en) | 2007-11-21 | 2018-05-01 | Smith & Nephew Plc | Wound dressing |
| CN113577370A (en) * | 2021-07-28 | 2021-11-02 | 华南理工大学 | Janus hydrogel adhesive and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2736833A1 (en) * | 1995-07-18 | 1997-01-24 | Roux Georges | Hydrocolloid compsn., used in wound dressings remaining coherent for longer periods - contg. CMC, binder and super-absorbent crosslinked polyacrylate |
| US5681579A (en) * | 1993-03-22 | 1997-10-28 | E.R. Squibb & Sons, Inc. | Polymeric support wound dressing |
| US5695777A (en) * | 1994-05-10 | 1997-12-09 | Medtronic, Inc. | Absorptive wound dressing for wound healing promotion |
| US20050080372A1 (en) * | 2001-11-23 | 2005-04-14 | Nielsen John Stern | Wound dressing |
| US20060195054A1 (en) * | 2005-02-26 | 2006-08-31 | Xennovate Medical Lll | Adhesive attachment and removal device |
| EP1852097A2 (en) * | 2006-05-03 | 2007-11-07 | Johnson & Johnson Industrial Ltda. | An adhesive bandage |
-
2006
- 2006-11-21 GB GB0623196A patent/GB0623196D0/en not_active Ceased
-
2007
- 2007-11-21 WO PCT/GB2007/004442 patent/WO2008062176A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5681579A (en) * | 1993-03-22 | 1997-10-28 | E.R. Squibb & Sons, Inc. | Polymeric support wound dressing |
| US5695777A (en) * | 1994-05-10 | 1997-12-09 | Medtronic, Inc. | Absorptive wound dressing for wound healing promotion |
| FR2736833A1 (en) * | 1995-07-18 | 1997-01-24 | Roux Georges | Hydrocolloid compsn., used in wound dressings remaining coherent for longer periods - contg. CMC, binder and super-absorbent crosslinked polyacrylate |
| US20050080372A1 (en) * | 2001-11-23 | 2005-04-14 | Nielsen John Stern | Wound dressing |
| US20060195054A1 (en) * | 2005-02-26 | 2006-08-31 | Xennovate Medical Lll | Adhesive attachment and removal device |
| EP1852097A2 (en) * | 2006-05-03 | 2007-11-07 | Johnson & Johnson Industrial Ltda. | An adhesive bandage |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11179276B2 (en) | 2007-11-21 | 2021-11-23 | Smith & Nephew Plc | Wound dressing |
| US11129751B2 (en) | 2007-11-21 | 2021-09-28 | Smith & Nephew Plc | Wound dressing |
| US9956121B2 (en) | 2007-11-21 | 2018-05-01 | Smith & Nephew Plc | Wound dressing |
| US10016309B2 (en) | 2007-11-21 | 2018-07-10 | Smith & Nephew Plc | Wound dressing |
| US10744041B2 (en) | 2007-11-21 | 2020-08-18 | Smith & Nephew Plc | Wound dressing |
| US10231875B2 (en) | 2007-11-21 | 2019-03-19 | Smith & Nephew Plc | Wound dressing |
| US11364151B2 (en) | 2007-11-21 | 2022-06-21 | Smith & Nephew Plc | Wound dressing |
| US10555839B2 (en) | 2007-11-21 | 2020-02-11 | Smith & Nephew Plc | Wound dressing |
| US11351064B2 (en) | 2007-11-21 | 2022-06-07 | Smith & Nephew Plc | Wound dressing |
| US10271995B2 (en) | 2012-12-18 | 2019-04-30 | Kci Usa, Inc. | Wound dressing with adhesive margin |
| US11141318B2 (en) | 2012-12-18 | 2021-10-12 | KCl USA, INC. | Wound dressing with adhesive margin |
| EP2922516B1 (en) | 2012-12-18 | 2016-06-15 | Systagenix Wound Management IP Co. BV. | Wound dressing with adhesive margin |
| EP3434236B1 (en) | 2013-03-14 | 2021-12-29 | 3M Innovative Properties Company | Absorbent dressing with hybrid drape |
| EP3238674B1 (en) | 2013-03-14 | 2019-01-30 | KCI Licensing, Inc. | Absorbent dressing with hybrid drape |
| EP2968012B1 (en) | 2013-03-14 | 2017-04-26 | KCI Licensing, Inc. | Absorbent dressing with hybrid drape |
| CN113577370A (en) * | 2021-07-28 | 2021-11-02 | 华南理工大学 | Janus hydrogel adhesive and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0623196D0 (en) | 2006-12-27 |
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