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1. WO2020197955 - NASAL DRESSINGS AND STENTS

Publication Number WO/2020/197955
Publication Date 01.10.2020
International Application No. PCT/US2020/023749
International Filing Date 20.03.2020
IPC
A61L 27/24 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for prostheses or for coating prostheses
14Macromolecular materials
22Polypeptides or derivatives thereof
24Collagen
A61L 27/34 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for prostheses or for coating prostheses
28Materials for coating prostheses
34Macromolecular materials
A61L 27/50 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for prostheses or for coating prostheses
50Materials characterised by their function or physical properties
A61L 27/54 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for prostheses or for coating prostheses
50Materials characterised by their function or physical properties
54Biologically active materials, e.g. therapeutic substances
A61L 27/58 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for prostheses or for coating prostheses
50Materials characterised by their function or physical properties
58Materials at least partially resorbable by the body
A61L 31/04 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
31Materials for other surgical articles
04Macromolecular materials
CPC
A61L 2300/222
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
2300Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
20containing or releasing organic materials
22Lipids, fatty acids, e.g. prostaglandins, oils, fats, waxes
222Steroids, e.g. corticosteroids
A61L 2300/41
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
2300Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
40characterised by a specific therapeutic activity or mode of action
41Anti-inflammatory agents, e.g. NSAIDs
A61L 2300/43
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
2300Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
40characterised by a specific therapeutic activity or mode of action
43Hormones, e.g. dexamethasone
A61L 31/041
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
31Materials 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
04Macromolecular materials
041Mixtures of macromolecular compounds
A61L 31/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
31Materials 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
08Materials for coatings
10Macromolecular materials
A61L 31/14
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
31Materials 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
14Materials characterised by their function or physical properties ; , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
Applicants
  • DSM IP ASSETS B.V. [NL]/[NL]
Inventors
  • RINGEISEN, Timothy
Agents
  • BULL, Kevin, M.
Priority Data
62/822,15422.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) NASAL DRESSINGS AND STENTS
(FR) PANSEMENTS NASAUX ET ENDOPROTHÈSES NASALES
Abstract
(EN)
Disclosed are nasal dressings and nasal stents comprising a collagen foam. Also disclosed are methods of making and using such nasal dressings and nasal stents. In an embodiment, a nasal dressing or nasal stent is formed by a method comprising the steps of: forming an aqueous mixture of from 5 to 25 wt% of acid-soluble collagen and from 75 to 95 wt% of collagen fibers, both based on the total solids content of the aqueous mixture, placing the aqueous mixture into a mold, freeze-drying the aqueous mixture while in the mold, thereby forming a collagen foam, and cross-linking the collagen foam.
(FR)
L'invention concerne des pansements nasaux et des endoprothèses nasales comprenant une mousse de collagène. La présente invention concerne également des procédés de fabrication et d'utilisation de ces pansements nasaux et endoprothèses nasales. Dans un mode de réalisation, un pansement nasal ou une endoprothèse nasale est formé par un procédé comprenant les étapes consistant à : former un mélange aqueux de 5 à 25 % en poids de collagène soluble dans l'acide et de 75 à 95 % en poids de fibres de collagène, à la fois sur la base de la teneur totale en solides du mélange aqueux, à placer le mélange aqueux dans un moule, à lyophiliser le mélange aqueux pendant qu'il se trouve dans le moule, formant ainsi une mousse de collagène, et à réticuler la mousse de collagène.
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