WO2008096334A3 - A collagen/hydroxyapatite composite scaffold, and process for the production thereof - Google Patents

A collagen/hydroxyapatite composite scaffold, and process for the production thereof Download PDF

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Publication number
WO2008096334A3
WO2008096334A3 PCT/IE2008/000010 IE2008000010W WO2008096334A3 WO 2008096334 A3 WO2008096334 A3 WO 2008096334A3 IE 2008000010 W IE2008000010 W IE 2008000010W WO 2008096334 A3 WO2008096334 A3 WO 2008096334A3
Authority
WO
WIPO (PCT)
Prior art keywords
collagen
composite scaffold
hydroxyapatite
composite
ratio
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.)
Ceased
Application number
PCT/IE2008/000010
Other languages
French (fr)
Other versions
WO2008096334A2 (en
WO2008096334B1 (en
Inventor
Fergal O'brien
John Glesson
Niamh Plunkett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Royal College of Surgeons in Ireland
Original Assignee
Royal College of Surgeons in Ireland
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
Priority to CA2677992A priority Critical patent/CA2677992C/en
Priority to ES08710143T priority patent/ES2435192T3/en
Priority to PL08710143T priority patent/PL2117617T3/en
Priority to JP2009548796A priority patent/JP5527760B2/en
Priority to EP20080710143 priority patent/EP2117617B1/en
Priority to AU2008212526A priority patent/AU2008212526B2/en
Priority to US12/526,353 priority patent/US8435552B2/en
Priority to DK08710143T priority patent/DK2117617T3/en
Priority to NZ57946608A priority patent/NZ579466A/en
Application filed by Royal College of Surgeons in Ireland filed Critical Royal College of Surgeons in Ireland
Publication of WO2008096334A2 publication Critical patent/WO2008096334A2/en
Publication of WO2008096334A3 publication Critical patent/WO2008096334A3/en
Publication of WO2008096334B1 publication Critical patent/WO2008096334B1/en
Priority to IL200295A priority patent/IL200295A/en
Anticipated expiration legal-status Critical
Priority to US13/786,891 priority patent/US9138483B2/en
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/42—Proteins; Polypeptides; Degradation products thereof; Derivatives thereof, e.g. albumin, gelatin or zein
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/02—Inorganic compounds
    • 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
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
    • A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
    • A61L27/46—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with phosphorus-containing inorganic fillers
    • 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
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56—Porous materials, e.g. foams or sponges
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P19/00—Drugs for skeletal disorders
    • 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
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Inorganic Chemistry (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dermatology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Organic Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)
  • Dental Preparations (AREA)

Abstract

A process for producing a collagen/hydroxyapatite (HA) composite scaffold comprises the steps of forming a homogenous suspension of collagen and HA in an acidic solution, lyophilising the suspension at a constant cooling rate until a desired final freezing temperature is reached to produce the composite scaffold, wherein the ratio of HA to collagen is at least 1 : 10 (w/w). Also provided is a collagen/hydroxyapatite (HA) composite scaffold comprising a homogenous distribution of hydroxyapatite within a porous, collagen matrix, wherein the ratio of HA to collagen is at least 1 : 10 (w/w). Suitably, the composite scaffold has a porosity of at least 99% (v/v), and a compressive stiffness of at least 0.3KPa. Composite scaffolds of the invention may be used to provide osteoconductive bone implants, tissue engineering implants, maxillofacial bone graft substitute, dental bone graft substitute, cartilage defect repair implant and osteochondral defect repair implant.
PCT/IE2008/000010 2007-02-09 2008-02-11 A collagen/hydroxyapatite composite scaffold, and process for the production thereof Ceased WO2008096334A2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
NZ57946608A NZ579466A (en) 2007-02-09 2008-02-11 A collagen/hydroxyapatite composite scaffold, and process for the production thereof
PL08710143T PL2117617T3 (en) 2007-02-09 2008-02-11 A collagen/hydroxyapatite composite scaffold, and process for the production thereof
JP2009548796A JP5527760B2 (en) 2007-02-09 2008-02-11 Collagen / hydroxyapatite composite skeleton and method for producing the same
EP20080710143 EP2117617B1 (en) 2007-02-09 2008-02-11 A collagen/hydroxyapatite composite scaffold, and process for the production thereof
AU2008212526A AU2008212526B2 (en) 2007-02-09 2008-02-11 A collagen/hydroxyapatite composite scaffold, and process for the production thereof
US12/526,353 US8435552B2 (en) 2007-02-09 2008-02-11 Collagen/hydroxyapatite composite scaffold, and process for the production thereof
DK08710143T DK2117617T3 (en) 2007-02-09 2008-02-11 THE COLLAGEN / HYDROXYAPATITE COMPOSITION SCAFFOLD, AND PROCEDURE FOR PREPARING THEREOF
CA2677992A CA2677992C (en) 2007-02-09 2008-02-11 A collagen/hydroxyapatite composite scaffold, and process for the production thereof
ES08710143T ES2435192T3 (en) 2007-02-09 2008-02-11 Collagen / Hydroxyapatite Composite Scaffolding, and procedure for the production thereof
IL200295A IL200295A (en) 2007-02-09 2009-08-09 Collagen/hydroxyapatite composite scaffold and process for the production thereof
US13/786,891 US9138483B2 (en) 2007-02-09 2013-03-06 Collagen/hydroxyapatite composite scaffold, and process for the production thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20070394001 EP1964583A1 (en) 2007-02-09 2007-02-09 Process for producing a collagen/hydroxyapatite composite scaffold
EP07394001.7 2007-02-09

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/526,353 A-371-Of-International US8435552B2 (en) 2007-02-09 2008-02-11 Collagen/hydroxyapatite composite scaffold, and process for the production thereof
US13/786,891 Continuation US9138483B2 (en) 2007-02-09 2013-03-06 Collagen/hydroxyapatite composite scaffold, and process for the production thereof

Publications (3)

Publication Number Publication Date
WO2008096334A2 WO2008096334A2 (en) 2008-08-14
WO2008096334A3 true WO2008096334A3 (en) 2008-10-30
WO2008096334B1 WO2008096334B1 (en) 2008-12-18

Family

ID=38196643

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IE2008/000010 Ceased WO2008096334A2 (en) 2007-02-09 2008-02-11 A collagen/hydroxyapatite composite scaffold, and process for the production thereof

Country Status (13)

Country Link
US (2) US8435552B2 (en)
EP (3) EP1964583A1 (en)
JP (2) JP5527760B2 (en)
AU (1) AU2008212526B2 (en)
CA (1) CA2677992C (en)
DK (2) DK2117617T3 (en)
ES (2) ES2649091T3 (en)
IL (1) IL200295A (en)
NO (1) NO2517738T3 (en)
NZ (1) NZ579466A (en)
PL (2) PL2517738T3 (en)
PT (2) PT2517738T (en)
WO (1) WO2008096334A2 (en)

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CN112601545A (en) * 2018-08-07 2021-04-02 葛兰素史密丝克莱恩生物有限公司 Process and vaccine
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Title
DATABASE WPI Week 200480, Derwent World Patents Index; AN 2004-805630, XP002440997 *
O'BRIEN F J ET AL: "Influence of freezing rate on pore structure in freeze-dried collagen-GAG scaffolds", BIOMATERIALS, ELSEVIER SCIENCE PUBLISHERS BV., BARKING, GB, vol. 25, no. 6, 1 March 2004 (2004-03-01), pages 1077 - 1086, XP004472570, ISSN: 0142-9612 *

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