EP2825218A1 - Antibakterielles, als wundauflage verwendbares flächengebilde und verfahren zu dessen herstellung - Google Patents
Antibakterielles, als wundauflage verwendbares flächengebilde und verfahren zu dessen herstellungInfo
- Publication number
- EP2825218A1 EP2825218A1 EP13706010.9A EP13706010A EP2825218A1 EP 2825218 A1 EP2825218 A1 EP 2825218A1 EP 13706010 A EP13706010 A EP 13706010A EP 2825218 A1 EP2825218 A1 EP 2825218A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wound dressing
- fabric
- suspension
- sheet
- usable
- 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- Withdrawn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
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 title abstract description 23
- 230000000844 anti-bacterial effect Effects 0.000 title description 5
- 239000002923 metal particle Substances 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims description 23
- 239000000725 suspension Substances 0.000 claims description 21
- 108010035532 Collagen Proteins 0.000 claims description 14
- 102000008186 Collagen Human genes 0.000 claims description 14
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 14
- 229920001436 collagen Polymers 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 11
- 229910052709 silver Inorganic materials 0.000 claims description 11
- 239000004332 silver Substances 0.000 claims description 11
- 239000007858 starting material Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 208000027418 Wounds and injury Diseases 0.000 description 15
- 206010052428 Wound Diseases 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007900 aqueous suspension Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 150000003378 silver Chemical class 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 241000124008 Mammalia Species 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 229940088710 antibiotic agent Drugs 0.000 description 2
- 230000002439 hemostatic effect Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WCDDVEOXEIYWFB-VXORFPGASA-N (2s,3s,4r,5r,6r)-3-[(2s,3r,5s,6r)-3-acetamido-5-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4,5,6-trihydroxyoxane-2-carboxylic acid Chemical compound CC(=O)N[C@@H]1C[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](C(O)=O)O[C@@H](O)[C@H](O)[C@H]1O WCDDVEOXEIYWFB-VXORFPGASA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 108010045569 atelocollagen Proteins 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 229940014041 hyaluronate Drugs 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 239000012705 liquid precursor Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 235000015277 pork Nutrition 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 231100000816 toxic dose Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/043—Proteins; Polypeptides; Degradation products thereof
- A61L31/044—Collagen
-
- 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
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0009—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials
- A61L26/0028—Polypeptides; Proteins; Degradation products thereof
- A61L26/0033—Collagen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K33/00—Medicinal preparations containing inorganic active ingredients
- A61K33/24—Heavy metals; Compounds thereof
- A61K33/38—Silver; Compounds 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
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/32—Proteins, polypeptides; Degradation products or derivatives thereof, e.g. albumin, collagen, fibrin, gelatin
- A61L15/325—Collagen
-
- 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
- A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/16—Biologically active materials, e.g. therapeutic substances
-
- 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
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
- A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
- A61L2300/104—Silver, e.g. silver sulfadiazine
-
- 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
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
Definitions
- the invention relates to a usable as a wound dressing sheet with antibacterial properties.
- the invention relates to a metal-containing collagen material.
- the silver salts used have the disadvantage that in many cases immediately after the application of the fabric to the wound, rapid release of almost all the silver occurs, resulting in undesirably high toxic concentrations in the vicinity of the wound dressing and, secondly, the Effect does not last long.
- the object of the invention is to produce a fabric which can be used as a wound dressing, in which the aforementioned disadvantages of the prior art are reduced. In particular, the release of the metal atoms should be improved.
- the object of the invention is already achieved by a method for producing a wound dressing
- the invention relates to a method for producing a fabric usable as a wound dressing.
- Such material is characterized in that it is applied to a wound and has a hemostatic effect.
- films, sponges or fleece-like materials can be used.
- the fabric is made of a liquid
- Starting material which means that in the manufacture of the fabric in at least one
- the starting material or precursor is liquid. It can be a suspension or a solution.
- EP 2 089 255 A2 (AAP Biomaterials GmbH) describes a process for producing a porous collagen material.
- a suspension is prepared from the wet-chemically processed and mechanically comminuted skin of mammals.
- This suspension forms the liquid starting material in the context of the invention.
- collagen materials from atelocollagen which are first dissolved in water. By drying the solution, a collagen-containing sheet can be produced.
- the invention also relates, however, also to alternative materials produced by polymerization.
- a suspension containing elemental metal particles ie metal particles in non-ionic form, is added to the liquid outer material.
- these metal particles are incorporated into the fabric in elemental form.
- the metals are present as ions. Due to a small particle size can be a big effective
- Particularly suitable metals are silver, gold, zinc and / or copper.
- silver is used.
- suspension with metal particles having an average particle size between 10 nm and 10 microns is used.
- nanoparticles having an average particle size of less than 50 nm are used.
- the metal particle-containing suspension is preferably stabilized with a stabilizer such that the metal particles remain suspended over a sufficiently long period of time.
- these particles can at least partially be present as agglomerates.
- the sheet is dried by drying the starting material at a temperature above the freezing point of the
- a material with a closed porosity of less than 50%, preferably less than 20%, has the advantage of that the metal particles are kept better in this, which slows down the delivery.
- Collagen material can be used. This material is highly porous and very flexible and is preferable to a low porosity material, depending on the application. In one embodiment of the invention that is
- the sheet may have a thickness between 0.05 and 2.00 mm, preferably between 0.1 and 1.00 mm.
- the metal particle-containing suspension is metered in such a way that a sheet with a proportion of metal particles between 10 and 100,000 ppm, preferably between 100 and 10,000 ppm is provided.
- Fig. 1 shows a flowchart of a method for
- pork skin becomes alkaline and oxidative
- the starting material is alternately immersed and then washed out.
- the wet-chemical purified pig skin is acidified.
- phosphoric acid is preferably used, or another acid such as e.g. Hydrochloric or acetic acid.
- the pig skin is first mechanically comminuted by means of grinding and then an aqueous suspension is prepared from the slurry formed by further comminution steps.
- this suspension has a solids content of between 0.5 and 5%.
- the aqueous suspension is then adjusted to a neutral to slightly basic pH of 6.5 to 8.5 by addition of a phosphate buffer.
- a nanosilver-containing aqueous suspension is added.
- a suspension should be used which is stable over a longer period of time.
- the metal is not called salt, but as
- the addition of the suspension containing nanosilver can be carried out with the aid of suitable dispersing aids, for example in an ultrasonic bath or a mill according to the rotor-stator principle.
- the suspension is dried in trays at a temperature of over 20 ° Celsius under vacuum.
- the collagen settles predominantly as a foil-like structure on the shell bottom, wherein a large part of the silver particles are fixed in the resulting material.
- the dried fabric can be packaged and sterilized.
- the sterilization can be carried out, for example, with ethylene oxide, in addition cross-linking can be brought about that increase the stability of the resulting material.
- the produced material rehydrates very quickly, has a good hemostatic effect and is also foldable in the dry state, rollable and easy to cut.
- the material is at least so translucent that the applied material, the underlying tissue lets recognize. Under the fabric forming complications such as inflammation can be well recognized.
- the material is less prone to sticking and can be removed more easily.
- Fig. 2 shows a scanning electron micrograph of a usable as a wound dressing sheet containing about 1000 ppm of nanosilver.
- Emulsifier is stabilized, so that the silver particles in the liquid precursor evenly distributed.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Vascular Medicine (AREA)
- Surgery (AREA)
- Inorganic Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201210004841 DE102012004841A1 (de) | 2012-03-13 | 2012-03-13 | Antibakterielles, als Wundauflage verwendbares Flächengebilde und Verfahren zu dessen Herstellung |
| PCT/EP2013/053764 WO2013135478A1 (de) | 2012-03-13 | 2013-02-26 | Antibakterielles, als wundauflage verwendbares flächengebilde und verfahren zu dessen herstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2825218A1 true EP2825218A1 (de) | 2015-01-21 |
Family
ID=47749842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13706010.9A Withdrawn EP2825218A1 (de) | 2012-03-13 | 2013-02-26 | Antibakterielles, als wundauflage verwendbares flächengebilde und verfahren zu dessen herstellung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10478521B2 (de) |
| EP (1) | EP2825218A1 (de) |
| DE (1) | DE102012004841A1 (de) |
| WO (1) | WO2013135478A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101804953B1 (ko) * | 2015-12-29 | 2017-12-06 | 영남대학교 산학협력단 | 바이오 패치 및 그 제조방법 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3800792A (en) * | 1972-04-17 | 1974-04-02 | Johnson & Johnson | Laminated collagen film dressing |
| US4294241A (en) * | 1977-06-09 | 1981-10-13 | Teruo Miyata | Collagen skin dressing |
| US5110604A (en) * | 1988-06-30 | 1992-05-05 | Collagen Corporation | Processes for producing collagen matrixes and methods of using same |
| US5785983A (en) * | 1991-05-23 | 1998-07-28 | Euroresearch Srl | Non-porous collagen sheet for therapeutic use, and the method and apparatus for preparing it |
| US5331092A (en) | 1992-11-06 | 1994-07-19 | Coletica | Process of preparation of collagen containing in major proportion insoluble collagen and collagen having high mechanical resistance and thermal stability obtained thereby |
| US20030035786A1 (en) * | 1999-11-04 | 2003-02-20 | Medtronic, Inc. | Biological tissue adhesives, articles, and methods |
| WO2002015698A1 (en) * | 2000-08-22 | 2002-02-28 | Alan John Taylor | Preparation of articles having a contact biocidal property |
| EP1635850B1 (de) * | 2003-06-20 | 2008-08-13 | Johnson & Johnson Medical Ltd. | Antimikrobielle zusammensetzung enthaltend silber |
| DE102004031955A1 (de) * | 2004-06-24 | 2006-01-12 | Paul Hartmann Ag | Wundauflage |
| DE102005044360A1 (de) * | 2005-09-09 | 2007-03-15 | Aesculap Ag & Co. Kg | Antimikrobielles medizintechnisches Produkt, Verfahren zu seiner Herstellung und Verwendung |
| GB0712287D0 (en) * | 2007-06-22 | 2007-08-01 | Ucl Business Plc | Antimicrobial Conjugates |
| ATE464916T1 (de) * | 2006-11-06 | 2010-05-15 | Lohmann & Rauscher Gmbh & Co Kg | Produkt zur versorgung von entzündungen, druckstellen und/oder aphten im oralbereich sowie verwendung eines solchen produkts |
| DE102006053563B4 (de) | 2006-11-14 | 2022-05-12 | Mercedes-Benz Group AG | Gurtstraffer für ein Sicherheitsgurtsystem |
| DE202008008627U1 (de) * | 2008-03-07 | 2009-07-23 | Aap Biomaterials Gmbh & Co. Kg | Implantat zur Wundabdeckung |
| DE102008062824A1 (de) * | 2008-12-23 | 2010-07-01 | Paul Hartmann Ag | Wundauflage |
| DE102009053305A1 (de) * | 2009-11-12 | 2011-08-18 | medichema GmbH, 09112 | Verfahren zur Herstellung einer schichtförmigen Wundauflage |
| DE102009059276A1 (de) | 2009-12-22 | 2011-06-30 | Rent-a-Scientist GmbH, 93059 | Formulierung mit Metallnanopartikel |
| EP2654429B1 (de) * | 2010-12-21 | 2018-07-25 | aap Implantate AG | Verfahren zur herstellung einer silbernanopartikelhaltigen dispersion sowie verwendung einer silbernanopartikelhaltigen mischung als beschichtungsmittel |
| DE102012004842A1 (de) * | 2012-03-13 | 2013-09-19 | Aap Biomaterials Gmbh | Kollagenhaltiges Flächengebilde |
-
2012
- 2012-03-13 DE DE201210004841 patent/DE102012004841A1/de not_active Withdrawn
-
2013
- 2013-02-26 EP EP13706010.9A patent/EP2825218A1/de not_active Withdrawn
- 2013-02-26 US US14/383,802 patent/US10478521B2/en not_active Expired - Fee Related
- 2013-02-26 WO PCT/EP2013/053764 patent/WO2013135478A1/de not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2013135478A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013135478A1 (de) | 2013-09-19 |
| US10478521B2 (en) | 2019-11-19 |
| DE102012004841A1 (de) | 2013-09-19 |
| US20150125512A1 (en) | 2015-05-07 |
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