Method for coating a substrate with calcium phosphate

US7344749B2 · kind B2 · utility

Assignee

• DOT INCORPORATION · US

Inventors

• Petra Becker · Neunburg vorm Wald, DE
• Mischa Buhrmeister · Papendorf, DE
• Hans-Georg Neumann · Rostock, DE
• Marianne Teller · Mistorf, DE

Key dates

• Filing date: Dec 6, 2002
• Grant date: Mar 18, 2008
• Expiry date: Jan 20, 2024

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L2430/02
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for coating substrates with calcium phosphate. The aim of the method is to be able to carry out a simple coating for all materials as well as for particles. To this end, the substrate to be coated is placed in a calcium phosphate gel, whereupon this substrate that is coated with the gel is dried. Afterwards, the calcium phosphate particles not adhering to the substrate are removed. The substrate can also be placed inside a colloidal solution of SiO2 containing a calcium phosphate, whereupon the mixture is constantly set in motion, the solvent is removed, and the substrate is provided with a calcium phosphate layer by condensing the colloidal SiO2 on the surface of the substrate. The coated substrates can, particularly when it concerns coated particles, be used as a bone substitute material.