Title:
POROUS BIOGLASS AND PREPARATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO2006018531
Kind Code:
A3
Abstract:
The invention relates to porous bioglass and to the preparation method thereof. More specifically, the invention relates to a solid, porous crystalline or partially-crystalline composition containing at least SiO2, CaO , NA2O, and P2O5, comprising micropores and macropores. The invention is characterised in that: the pore ratio varies between 50 % and 80 %, preferably between 60 and 75 %, and is measured using the geometric method; the average diameter of the macropores varies between 100 and 1250 micrometers, preferably between 150 and 300 micrometers; the average diameter of the micropores is less than or equal to 5 micrometers; and the compression strength varies between 7 MPa and 70 MPa. The invention also relates to the method of preparing one such composition and to such a composition treated with a physiological liquid having an ionic composition similar to that of human plasma. The invention also relates to an implant which is made from one such composition.
Inventors:
ZENATI RACHID (FR)
FANTOZZI GILBERT (FR)
CHEVALIER JEROME (FR)
ARIOUA MOURAD (FR)
FANTOZZI GILBERT (FR)
CHEVALIER JEROME (FR)
ARIOUA MOURAD (FR)
Application Number:
PCT/FR2005/001921
Publication Date:
August 31, 2006
Filing Date:
July 25, 2005
Export Citation:
Assignee:
INST NAT SCIENCES APPLIQ (FR)
ZENATI RACHID (FR)
FANTOZZI GILBERT (FR)
CHEVALIER JEROME (FR)
ARIOUA MOURAD (FR)
ZENATI RACHID (FR)
FANTOZZI GILBERT (FR)
CHEVALIER JEROME (FR)
ARIOUA MOURAD (FR)
International Classes:
A61L27/10; A61F2/28; A61L27/56
Domestic Patent References:
| WO2002096391A1 | 2002-12-05 |
Foreign References:
| US20030138473A1 | 2003-07-24 | |||
| US20010014355A1 | 2001-08-16 | |||
| EP0401793A1 | 1990-12-12 |
Other References:
LIN F-H ET AL: "FABRICATION AND BIOCOMPATIBILITY OF A POROUS BIOGLASS CERAMIC IN A SODIUM MONOXIDE CALCIUM OXIDE SILICON DIOXIDE PYROPHOSPHATE SYSTEM", JOURNAL OF BIOMEDICAL ENGINEERING, vol. 13, no. 4, 1991, pages 328 - 334, XP009046069, ISSN: 0141-5425
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