Process for producing a gradient coating made of calcium phosphate phases and metal oxide phase on metallic implants

US5723038A · kind A · utility

Assignee

• Jürgen Hofinger · DE

Inventors

• Dieter Scharnweber · Dresden, DE
• Henrike Bersch · Dresden, DE
• Hartmut Worch · Dresden, DE
• Jurgen Hofinger · Dresden, DE
• Curt Kranz · Berlin, DE
• Wolfgang Pompe · Rabenau, DE

Key dates

• Filing date: Dec 2, 1996
• Grant date: Mar 3, 1998
• Expiry date: Dec 2, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S623/901
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention concerns a process for producing a gradient coating of calcium phosphat phases and metal oxide phases on metallic implants, in particular made of titanium or titanium alloys, for use as dental, jaw or joint implants. A solution containing calcium ions and phosphate ions is used as electrolyte of which the pH is slightly acidic to approximately neutral. The substrate electrodes are alternately polarized cathodically and anodically. The layer deposited in a gratuated manner is adherent, has a fine structure and is distinguished by a high degree of biocompatibility.