Inorganic-organic compound substances for biomedical purposes

US4731394A · kind A · utility

Assignee

• Friedrich-Schiller-Universitat Jena · DE

Inventors

• Werner Vogel · Jena, DE
• Guenther Heublein · Jena, DE
• Wolfram Hoeland · Jena, DE
• Manfred Boese · Jena, DE
• Karin Naumann · Jena, DE
• Gunter Carl · Jena, DE
• Juergen Vogel · Jena, DE
• Peter Wange · Jena, DE
• Jens Gummel · Berlin, DE
• Peter Zinner · Jena, DE
• Eggert Beleites · Maua, KE
• Thomas Schubert · Soest, DE

Key dates

• Filing date: Jun 12, 1986
• Grant date: Mar 15, 1988
• Expiry date: Jun 12, 2006

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/833
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to inorganic-organic compound substances useful for biomedical purposes. The object of the invention is to develop inorganic-organic compound materials which overcome the disadvantages of the state of art, wherein inorganic-organic compound substances for biomedical purposes possess to a large extent specifically adjustable characteristics. Inorganic initial substances form a new solid chemical compound with organic initial substances. The inorganic initial component consists of a biocompatible silicate glass and/or a silicate glass ceramic of the system SiO.sub.2 -Al.sub.2 O.sub.3 -MgO-Na.sub.2 O/K.sub.2 O-F.sup.-, and/or a bioactive phosphate silicate glass and/or a phosphate silicate glass ceramic of the system SiO.sub.2 -Al.sub.2 O.sub.3 -MgO-Na.sub.2 O/K.sub.2 O-CaO-P.sub.2 O.sub.5 F.sup.- and/or of the system SiO.sub.2 -MgO-K.sub.2 O-F.sup.- -CaO-P.sub.2 O.sub.5, and/or a bioactive phosphate glass and/or a phosphate glass ceramic of the system P.sub.2 O.sub.5 -Al.sub.2 O.sub.3 -CaO-Na.sub.2 O/K.sub.2 O, and/or a sintred ceramic based upon tricalcium phosphate and/or apatite. The organic initial component consists of a biocompatible, monomer-free, epoxidi…