CO4930285A1 - Metodos para preparar esponjas de polisacaridos. la esponja obtenida mediante dichos metodos y venda para heridas que la comprende - Google Patents

Metodos para preparar esponjas de polisacaridos. la esponja obtenida mediante dichos metodos y venda para heridas que la comprende

Info

Publication number
CO4930285A1
CO4930285A1 CO97062920A CO97062920A CO4930285A1 CO 4930285 A1 CO4930285 A1 CO 4930285A1 CO 97062920 A CO97062920 A CO 97062920A CO 97062920 A CO97062920 A CO 97062920A CO 4930285 A1 CO4930285 A1 CO 4930285A1
Authority
CO
Colombia
Prior art keywords
polysaccharide
water
methods
solution
salts
Prior art date
Application number
CO97062920A
Other languages
English (en)
Inventor
Carla Anne Haynes
Elaine Lorimer
Original Assignee
Johnson And Johnson Medical Lt
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10802055&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CO4930285(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Johnson And Johnson Medical Lt filed Critical Johnson And Johnson Medical Lt
Publication of CO4930285A1 publication Critical patent/CO4930285A1/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • 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
    • A61L15/425—Porous materials, e.g. foams or sponges
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • Materials For Medical Uses (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Medicinal Preparation (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

La presente invención se relaciona con métodos para prepararuna esponja de polisacárido, que comprende los pasos de: (a) proveer una solución de polisacárido soluble en agua; (b) congelar la solución para formar una solución congelada; (c) sumergir la solución congelada en un solvente orgánico miscible con agua que contiene un agente entrelazador para intercambiar por lo menos una parte del agua de la solución congelada por dicho solvente mientras entrelaza el polisacarido para hacerlo insoluble en agua; y (d) secar el material de polisacarido resultante entrelazado y sometido a intercambio de solvente. El polisacárido soluble puede seleccionarse del grupo que consiste de alginatos solubles, goma de xantano, goma guar, goma de algarrobo, quitosán, sales de carboximetilcelulosa, hidroxietilcelulosa, ácido hialurónico, pectina y mezclas de los mismos. El agente entrelazador puede seleccionarse del grupo que consiste de glutaraldehído, diciclohexilcarbodiimida, diisocianato de hexametileno, sales de cationes multivalentes, sales de aniones multivalentes. Una esponja de polisacárido substancialmente insoluble en agua obtenible por un método de esta invención. Una venda para heridas o implante que comprende una esponja de polisacárido substancialmente insoluble en agua de conformidad con lo descrito.
CO97062920A 1996-10-28 1997-10-27 Metodos para preparar esponjas de polisacaridos. la esponja obtenida mediante dichos metodos y venda para heridas que la comprende CO4930285A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9622394A GB2318577B (en) 1996-10-28 1996-10-28 Solvent dried polysaccharide sponges

Publications (1)

Publication Number Publication Date
CO4930285A1 true CO4930285A1 (es) 2000-06-27

Family

ID=10802055

Family Applications (1)

Application Number Title Priority Date Filing Date
CO97062920A CO4930285A1 (es) 1996-10-28 1997-10-27 Metodos para preparar esponjas de polisacaridos. la esponja obtenida mediante dichos metodos y venda para heridas que la comprende

Country Status (17)

Country Link
US (1) US5888987A (es)
EP (1) EP0838491B2 (es)
JP (1) JP3819567B2 (es)
KR (1) KR19980033188A (es)
CN (1) CN1182753A (es)
AR (1) AR013861A1 (es)
AT (1) ATE215583T1 (es)
AU (1) AU721333B2 (es)
BR (1) BR9704460A (es)
CO (1) CO4930285A1 (es)
DE (1) DE69711540T3 (es)
GB (1) GB2318577B (es)
HK (1) HK1011212A1 (es)
ID (1) ID18642A (es)
MY (1) MY118913A (es)
SG (1) SG63766A1 (es)
TW (1) TW480182B (es)

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Also Published As

Publication number Publication date
EP0838491A2 (en) 1998-04-29
DE69711540T3 (de) 2007-02-01
MY118913A (en) 2005-02-28
MX9708277A (es) 1998-08-30
GB2318577B (en) 2000-02-02
HK1011212A1 (en) 1999-07-09
GB2318577A (en) 1998-04-29
EP0838491B1 (en) 2002-04-03
EP0838491A3 (en) 1999-01-13
BR9704460A (pt) 1999-01-12
DE69711540D1 (de) 2002-05-08
KR19980033188A (ko) 1998-07-25
JPH10226732A (ja) 1998-08-25
AR013861A1 (es) 2001-01-31
CN1182753A (zh) 1998-05-27
AU4287097A (en) 1998-04-30
AU721333B2 (en) 2000-06-29
SG63766A1 (en) 1999-03-30
JP3819567B2 (ja) 2006-09-13
DE69711540T2 (de) 2002-09-19
EP0838491B2 (en) 2006-06-28
GB9622394D0 (en) 1997-01-08
ID18642A (id) 1998-04-30
TW480182B (en) 2002-03-21
ATE215583T1 (de) 2002-04-15
US5888987A (en) 1999-03-30

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