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1. CN108025110 - Injectable macroporous hydrogels

Office
China
Application Number 201680051583.8
Application Date 08.09.2016
Publication Number 108025110
Publication Date 11.05.2018
Grant Number 108025110
Grant Date 20.08.2021
Publication Kind B
IPC
C12N 5/07
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
5Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
07Animal cells or tissues
A61L 27/18
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
18obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A61L 27/20
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
20Polysaccharides
A61L 27/22
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
A61L 27/26
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
26Mixtures of macromolecular materials
A61L 27/38
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
36containing ingredients of undetermined constitution or reaction products thereof
38Animal cells
CPC
A61L 27/18
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 ; grafts or; prostheses or for coating ; grafts or; prostheses
14Macromolecular materials
18obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A61L 27/20
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 ; grafts or; prostheses or for coating ; grafts or; prostheses
14Macromolecular materials
20Polysaccharides
A61L 27/227
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 ; grafts or; prostheses or for coating ; grafts or; prostheses
14Macromolecular materials
22Polypeptides or derivatives thereof ; , e.g. degradation products
227Other specific proteins or polypeptides not covered by A61L27/222, A61L27/225 or A61L27/24
A61L 27/26
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 ; grafts or; prostheses or for coating ; grafts or; prostheses
14Macromolecular materials
26Mixtures of macromolecular compounds
A61L 27/3804
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 ; grafts or; prostheses or for coating ; grafts or; prostheses
36containing ingredients of undetermined constitution or reaction products thereof ; , e.g. transplant tissue, natural bone, extracellular matrix
38containing added animal cells
3804characterised by specific cells or progenitors thereof, e.g. fibroblasts, connective tissue cells, kidney cells
A61L 27/56
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 ; grafts or; prostheses or for coating ; grafts or; prostheses
50Materials characterised by their function or physical properties ; , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
56Porous materials, ; e.g. foams or sponges
Applicants ETH ZUERICH
苏黎世联邦理工学院
Inventors BROGUIERE NICOLAS
N·布洛克里
ZENOBI WONG MARCY
M·泽诺比-黄
Agents 北京三友知识产权代理有限公司 11127
北京三友知识产权代理有限公司 11127
Priority Data 15184552.6 09.09.2015 EP
Title
(EN) Injectable macroporous hydrogels
(ZH) 可注射大孔水凝胶
Abstract
(EN) The inventions relates to a method for generating a macroporous hydrogel. In a first step, an aqueous solution of two solutes is produced. The first solute is a polymer that can be cross-linked and isa derivative of polyethylene glycol (PEG) or polyoxazoline (POx) and the second solute is a kosmotropic agent. In a second step, a cross-linking agent is added to the solution. This simultaneously initiates gelation of the polymer and phase-separation, thus creating a macroporous hydrogel. The invention further relates to a macroporous hydrogel, which can be obtained by the inventive method. Thismacroporous hydrogel is comprised of a cross-linked polymer, which is a derivative of polyethylene glycol (PEG) or polyoxazoline (POx). The hydrogel exhibits interconnected macropores with a size of200 nm to 1000 [mu]m, particularly 500 nm to 100 [mu]m and is characterized by a pH of 7,0 to 8,0, particularly approx. 7,4.
(ZH) 本发明涉及生成大孔水凝胶的方法。在第一步,产生两种溶质的水性溶液。所述第一溶质是可以交联的聚合物,并且是聚乙二醇(PEG)或聚噁唑啉(POx)的衍生物,所述第二溶质是有序构造性试剂。在第二步,向溶液添加交联剂。这同时引发所述聚合物的胶凝和相分离,由此生成大孔水凝胶。本发明还涉及大孔水凝胶,其能够通过本发明方法获得。该大孔水凝胶由交联聚合物组成,交联聚合物是聚乙二醇(PEG)或聚噁唑啉(POx)的衍生物。所述水凝胶展现出尺寸为200nm至1000μm、特别是500nm至100μm的互连大孔,并且特征在于pH是7.0至8.0,特别是约7.4。