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:
Jun. 16, 2009
Filed:
Oct. 20, 2003
Georg Berger, Zepernick, DE;
Andrea Spitzer, Berlin, DE;
Christian Jäger, Berlin, DE;
Jutta Pauli, Berlin, DE;
Renate Gildenhaar, Berlin, DE;
Georg Berger, Zepernick, DE;
Andrea Spitzer, Berlin, DE;
Christian Jäger, Berlin, DE;
Jutta Pauli, Berlin, DE;
Renate Gildenhaar, Berlin, DE;
Abstract
The present invention relates to an X-ray amorphous-crystalline material with high solubility which can be used as a bioactive bone replacement material and as a substrate material in biotechnology. The new material comprising crystalline and X-ray amorphous phases is characterized in that according toP-NMR measurements, it contains Q-groups of orthophosphate and Q-groups of diphosphate, the ortho-phosphates or Q-groups making up 70 to 99.9% by weight relative to the total phosphorus content of the finished material and the diphosphates or Q-groups making up 0.1 to 30% by weight relative to the total phosphorus content of the finished material, and that according to X-ray diffractometric measurements and relative to the total weight of the finished material, 30 to 99.9% by weight of a main crystal phase consisting of CaKNa(PO), where x=0.1 to 0.9, is contained in the bone replacement material and 0.1 to 20% by weight of a substance selected from the group consisting of NaCaPO, KCaPO, CaPOand mixtures thereof is contained as a secondary crystal phase, the X-ray amorphous phases contained besides the main crystal phase jointly making up 0.1 to 70% by weight relative to the total weight of the finished material.