EP2694001A1 - Wasserdichte, schnelltrocknende und wasserdampfdurchlässige gewebepflaster - Google Patents
Wasserdichte, schnelltrocknende und wasserdampfdurchlässige gewebepflasterInfo
- Publication number
- EP2694001A1 EP2694001A1 EP12712125.9A EP12712125A EP2694001A1 EP 2694001 A1 EP2694001 A1 EP 2694001A1 EP 12712125 A EP12712125 A EP 12712125A EP 2694001 A1 EP2694001 A1 EP 2694001A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- liquid
- adhesive
- skin
- tissue
- 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- Withdrawn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
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
- A61F13/00051—Accessories for dressings
- A61F13/00063—Accessories for dressings comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic
-
- 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
- A61F13/023—Adhesive bandages or dressings wound covering film layers without a fluid retention layer
- A61F13/0243—Adhesive bandages or dressings wound covering film layers without a fluid retention layer characterised by the properties of the skin contacting layer, e.g. air-vapor permeability
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/58—Adhesives
-
- 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
- A61F2013/00246—Wound bandages in a special way pervious to air or vapours
- A61F2013/00268—Wound bandages in a special way pervious to air or vapours impervious, i.e. occlusive bandage
-
- 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
- A61F2013/00314—Wound bandages with surface treatments
- A61F2013/00319—Wound bandages with surface treatments to make surface hydrophobic
-
- 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
- A61F2013/00314—Wound bandages with surface treatments
- A61F2013/00323—Wound bandages with surface treatments to make surface hydrophilic
-
- 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
- A61F2013/00361—Plasters
- A61F2013/00544—Plasters form or structure
- A61F2013/00604—Multilayer
-
- 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
- A61F2013/00361—Plasters
- A61F2013/00544—Plasters form or structure
- A61F2013/00646—Medication patches, e.g. transcutaneous
-
- 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
- A61F2013/00361—Plasters
- A61F2013/00855—Plasters pervious to air or vapours
- A61F2013/00885—Plasters pervious to air or vapours impervious, i.e. occlusive bandage
Definitions
- the invention discloses self-adhesive skin coverings with a special layer structure of hydrophobic and / or oleophobic fabric, a liquid-tight and gas-permeable layer and a water-vapor-permeable adhesive.
- the skin layer offers the user an advantageous tissue feel with moisture-regulating properties.
- the different materials from fabric to films to laminates, serve different purposes and applications.
- So classic fabric patches are not waterproof, so do not protect the wound from water. In addition, they become wet when washing hands, whereby the adhesion is reduced, the wearing comfort is deteriorated and the appearance is deteriorated.
- foil tape If water resistance is required, it is necessary to use foil tape. However, these films have the disadvantage that they have no pleasant to the consumer feel.
- Textile dressings based e.g. on cotton, viscose, PE or PP, can produce a moist wound healing environment in combination with occlusive support materials.
- occlusive support materials there is a risk of maceration of the skin if too much moisture is accumulated under the occlusive carrier material.
- maceration is meant a fluid-based softening of the sore-skin, which may result in a softened skin barrier and / or loss of adhesion.
- a softened skin barrier can lead to wound healing complications, such as wound healing complications. Infections, lead.
- EP 826083 A2 describes fabrics that are rendered liquid-tight and gas-permeable by being treated with a curable thixotropic polymer composition having biologically active molecules therein.
- the fabrics can be used in protective clothing and wound care products. It is the state of the art to coat fibers of a fabric with hydrophilic polymer (eg acrylic resin) or to treat the fabric with fluorochemicals or silicones to make it water repellent and gas permeable.
- hydrophilic polymer eg acrylic resin
- US 4454191 discloses a waterproof and moisture wicking fabric. It describes a coating with polyorganosiloxanes to make the fabrics waterproof but permeable to water vapor. The feeling when touching the fabric does not change.
- Polyurethane film waterproof and breathable can be designed.
- Wound dressings are known in the trade, such as BandAid® Tough Strips Waterproof or Nexcare® Heavy Duty Clear & Tough, which represent film plasters with an integrated fabric structure.
- wound dressings which have a liquid-tightness, are permeable to water vapor, show no maceration and yet one
- EP 673657 describes an adhesive dressing, wherein on the skin-facing side
- Nonwoven fabric is provided with an adhesive layer and on the opposite side a film with water vapor permeability and water impermeability is laminated to the textile composite.
- the textile composite is composed of elastomeric threads.
- Patches where the tissue faces the skin, can wick liquid under a waterproof film over the open edges by capillary action. Due to these capillary effects, moisture can penetrate from the edge of the support into the wound dressing and lead to the problems described, for example maceration.
- waterproof textiles wound dressings, tapes
- the invention is a self-adhesive skin layer comprising a layer of hydrophobic and / or oleophobic tissue (2), wherein the hydrophobic or oleophobic
- Tissue layer (2) is provided to the skin-facing side with a liquid-tight layer (3), which in turn is coated to the skin-facing side with a preferably water vapor-permeable adhesive (4).
- the liquid-tight and preferably water-vapor-permeable layer (3) can be used, for example, in this case. as a dispersion or as a melt applied directly to the fabric (2) or laminated in the form of a film on the fabric.
- the fabric (2) is designed by appropriate equipment (1) hydrophobic and / or oleophobic (water and / or oil repellent).
- the hydrophobization or oleophobization (1) of the fabric can be carried out, for example, by finishing with fluorocarbon or by using 100% synthetic yarn. That The tissue can be oleophobic or hydrophobic per se
- hydrophobic and / or oleophobic equipment (1) are all known and suitable for use in wound care products and tapes or bandages chemicals such as paraffins, aluminum and / or zirconium salts of organic acids, fluorocarbons, alkylsilanes, dimethylpolysiloxanes, waxes and / or mixtures thereof.
- suitable materials (1) for example, by
- hydrophobing and oleophobing with paraffin-based chemicals such as Phobol APK
- fluorocarbons such as Phobol APK
- the water repellency and / or oleophobization is carried out in complete absence of such paraffin-based chemicals, e.g. by simple oleophobization with the help of
- Skin layers according to the invention are wound dressings, tapes, bandages, patches, plasters, pads and dressings.
- the requirements may be designed drug-free as well as containing active ingredient.
- Self-adhesive means that the skin layer will adhere to the skin for a certain period of time without any additional fixative.
- the period and the bond strength can be individually adapted to the required conditions. That's one
- Adhesive plaster is to be provided with a higher bond strength and duration of adhesion than a cosmetic pad. Self-adhesive bonding is achieved by the adhesive layer (4).
- the adhesive may be selected from different materials such as (poly) acrylates, rubber (natural or synthetic), polyurethane, silicone or hydrocolloids.
- the coating with advantageously water vapor permeable adhesive (4) can be any coating with advantageously water vapor permeable adhesive (4).
- a full-surface coating with a water-vapor-permeable adhesive e.g. made of polyacrylate, silicone or polyurethane.
- the adhesive application can also be only partial (for example screen printing, strip coating) in order to achieve good or better water vapor permeability.
- occlusive adhesives may also be used, e.g. based on natural and / or synthetic rubber.
- the adhesives may e.g. also be added a hydrocolloid, e.g.
- Carboxymethylcellulose, Na salts of polyacrylic acid Suitable adhesives include hotmelt compositions as well as solvents, including water, based adhesives. Also, the adhesive may contain medical, dermatological or cosmetic agents that are delivered to the skin over time.
- the adhesive (4) is preferably selected from polyacrylates, silicones, polyurethanes, natural and / or synthetic rubber and / or hydrocolloids.
- the adhesive (4) is applied over the entire surface or partially on the liquid-tight layer (3).
- the application as well as the type of adhesive can, in turn, be adapted individually to the required conditions, depending on the requirements.
- the adhesive (4) may consist of one or more different adhesives
- the liquid-tight layer (3) is applied to the tissue facing the skin, for example by lamination.
- a layer obtained from acrylate dispersion is preferred.
- silicone, polyurethane (PU) dispersion, PU film or a direct coating with PU or acrylate is preferred.
- PU polyurethane
- PU film or a direct coating with PU or acrylate is preferred.
- the layer (3) according to the invention can be advantageously by means of a laminated
- water vapor permeable film e.g. made of polyurethane, copolyester or one
- microporous film e.g. made of PE, PP, polyamide, polyester, polyether-ester or PTFE, or a flowable, e.g. from the melt, from a dispersion or a solution applied polymer layer, e.g. made of silicone, polyurethane or polyacrylate.
- the liquid-tight layer (3) may also consist of two or more layers and possibly also different layer materials.
- the liquid-tight layer (3) may advantageously consist of a microporous film of polyolefin, in particular polyethylene.
- the order of the u.U. flexible film can be done by casting, extruding, laminating or laminating.
- Suppliers of known films are established film manufacturers, such as the companies SNEF (Smith & Nephew Extruded Films) or Epurex.
- a film having a water vapor transmission rate (WVTR) of more than 300 g / m 2 in 24 hours is considered to be permeable to water vapor.
- the layer (3) after the referred to in Example 1, Method a breathability and water vapor permeability of> 350 g / m 2 / 24h.
- the layer (3) has a thickness of about 10 to 100 ⁇ m and / or a weight per unit area of 10 to 100 g / m 2 .
- the fabric layer (2) is directed outwards and can be perceived by the user as such.
- Another advantage of the structure according to the invention is that the fabric can dry faster if it is even wetted or wet with liquid.
- the hydrophobing and / or Oleophobi für stains prevents the fabric threads themselves can be saturated with liquid. Liquid can thus penetrate only in or through the spaces between the threads of the tissue.
- the waterproof layer underneath the fabric ensures that the liquid does not penetrate deeper, but remains on the surface, where it can evaporate quickly.
- Another decisive advantage is that, in contrast to plaster structures in which the tissue points to the skin, no capillary effects can occur, which can draw moisture from the edge of the support into the wound dressing.
- the product structure according to the invention thus does not have the serious disadvantages of the loss of textile feel and the lateral absorption of liquid under an outwardly facing waterproof layer.
- tissue are any form of textiles, such as fabrics, knitted fabrics, knitted fabrics, nonwovens, etc. to understand.
- all suitable for self-adhesive wound care products, tapes and bandages and patches and pads suitable primarily textile carrier materials in question.
- the underlying fibers or yarns are usually made of cotton, viscose, cellulose acetate, polyester, PE, PP, polyamide and mixtures thereof - but other materials are conceivable.
- the basis weight of the fabric layer (2) is advantageously selected in the range from 50 to 250 g / m 2 , particularly advantageously in the range from 70 to 180 g / m 2 .
- the liquid-tight layer (3) and / or the adhesive (4) are advantageous
- WVTR water vapor transmission rate
- water vapor permeable are preferred because they prevent maceration.
- a further advantage of this water-vapor-permeable embodiment is that it counteracts a reduction in the adhesive force on the skin, which can be caused by a build-up of moisture at the boundary layer between the skin and the adhesive.
- the bond between the fabric (2) and the liquid-tight and preferably water vapor-permeable layer (3) and the composite of the liquid-tight layer (3) and the adhesive (4) is significantly stronger than the bonding of the product (eg plaster, tapes, etc.).
- the product eg plaster, tapes, etc.
- the adhesive forces in the composite of the layers (2) and (3) and (3) and (4) are ideally about the same to avoid delamination. This difference in adhesion between the various layers of the overlay and their adhesion to the skin and / or to itself will prevent destruction and tearing of the skin patch upon redetachment of the skin.
- Common patches, tapes, etc. have an adhesive force on the skin in the range of 20 to 200 cN / cm. Preferably, they have an adhesive force on the skin in the range of 40 to 160 cN / cm. However, regardless of the specific adhesion of the pads according to the invention on the skin, the adhesion between the layers (2) and (3) and (3) and (4) according to the invention is preferably greater to choose.
- the composite of the layers (2), (3) and (4) is sufficient enough to meet the necessary application properties as a self-adhesive pad when glued to the skin and to withdraw after application without residue from the application site again.
- the adhesion between the layers (2) and (3) can be e.g. determine as follows: a 20 cm long strip of waterproof fabric, consisting of layers (2) and (3), is glued with double-sided adhesive tape on a steel plate so that the layer (3) forms the still freely accessible surface. A second, longer strip of the same waterproof
- Fabric is glued with superglue on the first strip so that between the two layers (3) of the two strips creates a firm connection.
- the steel plate is then clamped vertically in a tensile testing machine and the longer of the two Strip is peeled off at an angle of 180 ° using the tensile tester
- the adhesion force (composite) thus determined between the layers (2) and (3) should be greater than 3 N / cm, preferably greater than 5 N / cm and particularly preferably greater than 7 N / cm.
- the adhesion between the layers (3) and (4) can be e.g. determine as follows: a 20 cm long strip of the adhesive-coated waterproof fabric, consisting of layers (2), (3) and (4) is glued with double-sided tape on a steel plate so that the layer (4) the still freely accessible Surface forms. A longer strip of adhesive tape (tesa 4651) is glued onto the first strip in such a way that a firm bond is formed between the adhesive of the tesa 4651 adhesive tape and the layer (4) of the strip fixed to the steel plate.
- the steel plate is then clamped vertically in a tensile testing machine and the strip of adhesive tape tesa 4651 is removed in a roll of 180 ° with the aid of the tensile testing machine (withdrawal speed 300 mm / min, Vormessweg 20 mm).
- the strips fixed on the steel plate a separation of the two layers (3) and (4) can occur. Over a measuring distance of 200 mm, the required force (separation force) is measured and the mean value is formed.
- the adhesion force (composite) thus determined between the layers (3) and (4) should be greater than 3 N / cm, preferably greater than 4 N / cm and particularly preferably greater than 6 N / cm.
- the bond between the layers (2), (3) and (4) can be adjusted by appropriate choice of the layer materials and / or their pretreatment as well as the process control and adjustment of the process parameters in the preferred adhesion force ranges.
- the pads of the invention particularly as wound care products, i.
- wound care products i.
- the consumer perceives as a textile patch and signal and ensure stability and robustness as well as “naturalness” and breathability.
- prior art film plasters act rather than dimensionally stable and "labbrig”, “chemical” (such as plastic) and airtight ,
- Textile patches of the prior art are soaked in contact with water and lose their shape and become unsightly. These disadvantages do not have the requirements of the invention.
- both the textile patch properties e.g., appearance and haptics
- the film patch properties e.g., waterproofness
- the plaster according to the invention is therefore preferred by the user.
- Figure 1 or 1a shows a schematic structure of the invention
- the fabric (2) with hydrophobic and / or oleophobic finish (1) is provided on the skin-facing side with a waterproof, preferably breathable, layer (3), e.g. a laminated PU film or an applied acrylate layer. On this layer (3), in turn, an adhesive layer (4) is applied, which ensures the adhesion of the patch on the skin.
- a waterproof, preferably breathable, layer (3) e.g. a laminated PU film or an applied acrylate layer.
- an adhesive layer (4) is applied, which ensures the adhesion of the patch on the skin.
- the support according to the invention is designed as a wound care product, one or more wound dressings (5) can be applied to the adhesive layer (4).
- the dressings are preferably made of textile (e.g., nonwoven fabric, knit, etc.) or consist of hydrocolloids, alginates, hydrogels, or polyurethanes (e.g., foams).
- the support according to the invention may comprise active substances and function as a transdermal system.
- the fields of application of pain therapy and / or rheumatic diseases are particularly preferred in accordance with the selection of active substances, since a longer residence time of the pads on the skin can be present here.
- the active ingredient (s) are preferably selected from the group coenzyme Q10, 3- (menthoxy) propane-1,2-diol, ((1R, 2S, 5R) -N- (2- (2-pyridinyl) ethyl) -2 -ispropyl-5-methylcyclohexanecarboxamides), AGR (alpha-glucosyl-rutin), glycerylglucose, ibuprofen and its salts, etofenamate, indomethacin, diclofenac and its salts, acetylsalicylic acid, licochalcone A, bakuchiol, acyclovir, decanediol, carnitine, ⁇ -4- Butyl-resorcinol, magnolol, honokiol, paeonol, salicylic acid and capsinoids such as capsa
- the active ingredient or agents are advantageously present in a proportion of 0.001-10% by weight, preferably 0.01-5% by weight, particularly preferably 0.05-1% by weight, preferably 0.01-0.5% by weight, based on the total mass of the layer they contain included in the edition.
- the active substances may be incorporated on the one hand in the adhesive (4) and / or in the liquid-tight layer (3).
- the adhesive (4) and / or in the liquid-tight layer (3) For example, grid-like adhesive application so
- an optional additional overlay (5) may contain one or more active ingredients.
- liquid-tight layer (3) in the adhesive (4) and / or in the overlay (5) can be contained in each case or in all simultaneously one or more active ingredients.
- transdermal therapeutic conditions can thus be produced.
- tissue layer (2) By means of a layer of hydrophobic and / or oleophobic tissue (2) and / or tissue (2) with hydrophobic and / or oleophobic finish (1), the tissue layer (2) being provided with a liquid-tight layer (3) to the skin-facing side, which in turn is coated to the skin-facing side with an adhesive (4) and in the liquid-tight layer (3) and / or the adhesive (4) contains one or more pharmaceutical active ingredients, transdermal therapeutic skin conditions can be produced.
- one or more optional pads (5) may contain the active ingredient (s).
- Fixing compresses, bandages etc. u.a. especially in wound care supporting and fixing (immobilizing) joints
- the oleophobic and hydrophobic finish of the outward-facing layer (2) and the liquid-tight layer (3) protect the skin and wounds from external influences, such as dirt and water. In particular, so that users are protected in eg rain or snow.
- moisture-sensitive components can be protected in the erfindunsglusteren edition from water.
- the pads may thus comprise, on the one hand, active ingredients which may be sensitive to moisture and, on the other hand, comprise constituents which must be protected from motinity.
- moisture-sensitive Besstander in particular sensors for measuring physiological parameters.
- the hydrophobic / oleophobic equipment is made with 1-3% Phobol APK (paraffin with aluminum salt) and 0.5-1.5% fluorocarbon (eg Rucostar EEE6 or EEW6, Ruco-Guard AFC6 or AFR6, from Rudolf Chemie).
- the liquid-tight layer was obtained by applying directly to the fabric a polyacrylate layer (eg Ruco-Coat AC 3330 and Ruco-Coat AC 7510 from Rudolf Chemie) with a basis weight of 50-80 g / m 2 .
- a polyacrylate layer eg Ruco-Coat AC 3330 and Ruco-Coat AC 7510 from Rudolf Chemie
- This laminate was then treated with a UV-crosslinkable acrylate adhesive (eg Sanicare UV 4450-21, Henkel) with a
- the water vapor permeability was determined to be approximately 400 g / m 2 / 24h.
- the water vapor permeability is determined according to ASTM E 96 (WVTR, water method), with the following data:
- the opening of the test vessel is 804 mm 2
- the product was liquid tight according to the test method described below for determining liquid tightness.
- Hand soaps e.g., Nivea Creme Soft
- 1mL sodium hydroxide solution 45%.
- the patch to be tested is glued to a glass plate (5cm x 20cm), taking under the
- Wound pad is placed a piece of pH indicator paper that turns to blue in the alkaline range.
- the plaster stuck in this way is dipped into the solution prepared in the beaker.
- the liquid-tight layer was obtained by applying directly to the fabric a polyacrylate layer (eg Ruco-Coat AC 3330 and Ruco-Coat AC 7510) having a basis weight of 50-80 g / m 2 .
- This laminate was coated with a UV-curable acrylate adhesive (eg Sanicare UV 4450-21, Henkel), coat application 65 g / m 2 and UV dose 75 mJ / cm 2 .
- plasters were punched out and a fleece wound pad made of polypropylene was placed in the middle in the form of an Iceland dressing.
- the water vapor permeability was determined to be approximately 400 g / m 2 / 24h.
- Fabric 100% cotton, basis weight 170 g / m 2 , warp threads: 170 / 10cm, 60x1 tex,
- Polyurethane film laminated This laminate was coated with a UV-curable acrylate adhesive (eg Sanicare UV 4450-21, Henkel), coat application 65 g / m 2 and UV dose 75 mJ / cm 2 .
- a UV-curable acrylate adhesive eg Sanicare UV 4450-21, Henkel
- the water vapor permeability was determined to be approximately 600 g / m 2 / 24h.
- the hydrophobic / oleophobic equipment is made with 1 - 3% Phobol APK (paraffin with aluminum salt) and 0.5 -1, 5% fluorocarbon (eg Rucostar EEE6 from Rudolf Chemie).
- the liquid-tight layer was obtained by applying a polyurethane layer (eg obtained from the Impranil series of Bayer AG, eg Impranil DLH, Impranil DLN, Impranil DLV / 1) () with a basis weight of 40-70 g / m 2 directly onto the fabric was applied.
- a polyurethane layer eg obtained from the Impranil series of Bayer AG, eg Impranil DLH, Impranil DLN, Impranil DLV / 1
- This laminate was coated with a UV-crosslinkable acrylate adhesive (eg Sanicare UV 4450-21, Henkel), coat application 65 g / m 2 and UV dose 75 mJ / cm 2 . Subsequently, plasters were punched out and a fleece wound pad made of polypropylene was placed in the middle in the form of an Iceland dressing.
- a UV-crosslinkable acrylate adhesive eg Sanicare UV 4450-21, Henkel
- the water vapor permeability was determined to be about 450 g / m 2 / 24h.
- a waterproof and water vapor permeable fabric was used (KOB).
- UV-crosslinkable acrylate adhesive eg Sanicare UV 4450-21, Henkel
- the water vapor permeability was determined to be about 450 g / m 2 / 24h.
- Pads according to the previous examples can also be advantageously produced with a fabric layer (2) comprising a hydrophobic finish without paraffin.
- the hydrophobic / oleophobic equipment is made with 0.5-1.5% fluorocarbon (eg Rucostar EEE6).
- the liquid-tight layer was obtained by applying directly to the fabric a polyacrylate layer (eg Ruco-Coat AC 3330 and Ruco-Coat AC 7510 from Rudolf Chemie) with a basis weight of 40-70 g / m 2 .
- a polyacrylate layer eg Ruco-Coat AC 3330 and Ruco-Coat AC 7510 from Rudolf Chemie
- This laminate was then treated with a UV-crosslinkable acrylate adhesive (eg Sanicare UV 4450-21, Henkel) with a
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- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Dermatology (AREA)
- Materials For Medical Uses (AREA)
- Medicinal Preparation (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110007060 DE102011007060A1 (de) | 2011-04-08 | 2011-04-08 | Wasserdichte, schnelltrocknende und wasserdampfdurchlässige Gewebepflaster |
| PCT/EP2012/056278 WO2012136764A1 (de) | 2011-04-08 | 2012-04-05 | Wasserdichte, schnelltrocknende und wasserdampfdurchlässige gewebepflaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2694001A1 true EP2694001A1 (de) | 2014-02-12 |
Family
ID=45929532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12712125.9A Withdrawn EP2694001A1 (de) | 2011-04-08 | 2012-04-05 | Wasserdichte, schnelltrocknende und wasserdampfdurchlässige gewebepflaster |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2694001A1 (de) |
| AU (1) | AU2012238668B2 (de) |
| DE (1) | DE102011007060A1 (de) |
| WO (1) | WO2012136764A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013008965A1 (de) | 2013-05-22 | 2014-11-27 | Gmbu E.V., Fachsektion Dresden | Vorrichtung zum Schutz der Umgebung von Wunden |
| DE202018005661U1 (de) | 2018-12-06 | 2019-01-14 | Norbert Neubauer | Abdichtungspflaster für Wunden |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3132324A1 (de) | 1981-08-17 | 1983-03-03 | Hasso von 4000 Düsseldorf Blücher | "wasser- und luftdichtes feuchtigkeitsleitendes textilmaterial" |
| JPS59158252A (ja) | 1983-03-01 | 1984-09-07 | ジヤパンゴアテツクス株式会社 | 透湿性の優れた防水材料 |
| JPS63230337A (ja) | 1987-03-19 | 1988-09-26 | ユニチカ株式会社 | 透湿性防水布帛およびその製造方法 |
| US5061258A (en) * | 1987-08-07 | 1991-10-29 | Martz Joel D | Vapor permeable dressing with releasable medication |
| US5846604A (en) | 1988-03-14 | 1998-12-08 | Nextec Applications, Inc. | Controlling the porosity and permeation of a web |
| DE3835016A1 (de) | 1988-10-14 | 1990-04-19 | Ploucquet C F Gmbh | Verwendung eines textilmateriales und verfahren zu dessen herstellung |
| JPH02249645A (ja) | 1989-03-24 | 1990-10-05 | Toagosei Chem Ind Co Ltd | 複合膜の製造方法 |
| EP0673657B1 (de) | 1994-03-14 | 2000-07-05 | JOHNSON & JOHNSON CONSUMER PRODUCTS, INC. | Klebefilm für einen Klebeverband sowie Klebeverband diesen Film verwendend |
| DE60210161T2 (de) | 2001-05-11 | 2007-01-04 | Nitto Denko Corp., Ibaraki | Druckempfindliches Klebeband zum Fixieren einer Gelenkpartie und Anwendungsverfahren |
| US20040002676A1 (en) * | 2002-06-28 | 2004-01-01 | Siegwart Kathleen Ann | Adhesive bandage having a selectively placed layer |
| DE10330971B4 (de) * | 2003-07-08 | 2007-03-29 | Beiersdorf Ag | Verfahren zur Herstellung von Haut- oder Wundauflagen mit verkapselten, wundheilungsfördernden und/oder hautpflegenden Substanzen |
| JPWO2009044875A1 (ja) | 2007-10-05 | 2011-02-10 | 東レ株式会社 | 植物由来成分からなる防水加工布帛 |
-
2011
- 2011-04-08 DE DE201110007060 patent/DE102011007060A1/de not_active Withdrawn
-
2012
- 2012-04-05 AU AU2012238668A patent/AU2012238668B2/en active Active
- 2012-04-05 WO PCT/EP2012/056278 patent/WO2012136764A1/de not_active Ceased
- 2012-04-05 EP EP12712125.9A patent/EP2694001A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012136764A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012136764A1 (de) | 2012-10-11 |
| AU2012238668A1 (en) | 2013-10-10 |
| DE102011007060A1 (de) | 2012-10-11 |
| AU2012238668B2 (en) | 2016-03-03 |
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