The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2010
Filed:
Jul. 25, 2005
Rachid Zenati, Neuville sur Saone, FR;
Gilbert Fantozzi, Meyzieu, FR;
Jerome Chevalier, Rillieux-la-Pape, FR;
Mourad Arioua, Lyons, FR;
Rachid Zenati, Neuville sur Saone, FR;
Gilbert Fantozzi, Meyzieu, FR;
Jerome Chevalier, Rillieux-la-Pape, FR;
Mourad Arioua, Lyons, FR;
Institut National des Sciences Appliques (INSA), Villeurbanne, FR;
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 SiO, Ca<SB>O</SB>, NaO, and PO, 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.