Method for fabricating artificial bone implant green parts

US5639402A · kind A · utility

Inventors

• Joel W. Barlow · Austin, US
• Goonhee Lee · Austin, US
• Richard H. Crawford · Austin, US
• Joseph J. Beaman · Austin, US
• Harris L. Marcus · Austin, US
• Richard J. Lagow · Austin, US

Key dates

• Filing date: Aug 8, 1994
• Grant date: Jun 17, 1997
• Expiry date: Aug 8, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9615
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Bone implants are made from calcium phosphate powders by selectively fusing layers of calcium powders that have been coated or mixed with polymer binders. The calcium powder mixture may be formed into layers and the polymer fused with a laser. Complex three-dimensional geometrical shapes can be automatically replicated or modified using this approach.