Method of producing implantable bone replacement materials

US4702930A · kind A · utility

Assignee

• Battelle Institute e.V. · DE

Inventors

• Helmut Heide · Kelkheim, DE
• Heinz-Werner Etzkorn · Neu-Anspach, DE
• Eva Poeschel · Bad Soden, DE
• Helmut Steininger · Neu-Anspach, DE

Key dates

• Filing date: Jul 18, 1986
• Grant date: Oct 27, 1987
• Expiry date: Jul 18, 2006

Classification

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

Abstract

Metallic implants with a coating of hydroxyl apatite are described. Hot isostatic pressing permits pore-free compaction of the hydroxyl apatite layer and results in firm bonding of the layer on the metallic core. The surface of the layer is partially dehydrated by means of ion bombardment, and a bioactive layer for osteogenesis is produced.