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1. (WO2018082721) METHOD FOR PRODUCING A NANOFIBER LAYER AND A TEXTILE COMPOSITE COMPRISING THE NANOFIBER LAYER
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Pub. No.: WO/2018/082721 International Application No.: PCT/CZ2017/000070
Publication Date: 11.05.2018 International Filing Date: 02.11.2017
IPC:
A61L 15/26 (2006.01) ,A61L 15/28 (2006.01) ,A61L 15/44 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
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
15
Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16
Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
22
containing macromolecular materials
26
Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
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
15
Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16
Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
22
containing macromolecular materials
28
Polysaccharides or their derivatives
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
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
15
Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16
Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42
Use of materials characterised by their function or physical properties
44
Medicaments
Applicants: NANO MEDICAL, S.R.O.[CZ/CZ]; 5. května 1640/65 140 00 Praha 4, CZ
UNIVERZITA JANA EVANGELISTY PURKYNĚ V ÚSTÍ NAD LABEM[CZ/CZ]; CZ
Inventors: MUNZAROVÁ, Marcela; CZ
MALÝ, Jan; CZ
HOCELÍKOVÁ, Lucie; CZ
POUSTKA, David; CZ
Agent: MARKES, Libor; Grohova 54 602 00 Brno, CZ
Priority Data:
PV 2016-68803.11.2016CZ
Title (EN) METHOD FOR PRODUCING A NANOFIBER LAYER AND A TEXTILE COMPOSITE COMPRISING THE NANOFIBER LAYER
(FR) PROCÉDÉ DE FABRICATION D'UNE COUCHE DE NANOFIBRES ET COMPOSITE TEXTILE COMPRENANT LA COUCHE DE NANOFIBRES
Abstract:
(EN) A method for producing a nanofiber layer based on chitosan in a solution with polyethylene oxide (PEO), designed for a textile composite for wound dressing, consists of the following steps: - mixing the chitosan monomer with a methacrylate-containing agent in an aqueous medium, - subjecting the mixture to filtration, washing it with H20 and drying it without access to light, - crushing the resulting product into powder, soluble solid phase modified chitosan, - subsequently preparing a spinning mixture by dissolving the modified chitosan and polyethylene oxide (PEO) in an aqueous acetic acid solution, - applying the spinning solution prepared in this way on a suitably selected substrate, - crosslinking the nanofiber layer material.
(FR) L'invention porte sur un procédé de fabrication d'une couche de nanofibres à base de chitosane dans une solution contenant également de l'oxyde de polyéthylène (PEO), conçue pour un composite textile pour pansement. Ledit procédé comprend les étapes suivantes : - mélange du monomère de chitosane avec un agent contenant du méthacrylate dans un milieu aqueux, - filtration du mélange, lavage de celui-ci avec de l'H2O et séchage en l'absence de lumière, - broyage du produit résultant pour obtenir une poudre soluble de chitosane modifié en phase solide, - préparation d'un mélange de filage par dissolution du chitosane modifié et de l'oxyde de polyéthylène (PEO) dans une solution aqueuse d'acide acétique, - application de la solution de filage ainsi préparée sur un substrat sélectionné de manière appropriée, - réticulation du matériau formant la couche de nanofibres.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)