Resorbable bone implant material and method for producing the same

US6689375B1 · kind B1 · utility

Assignee

• Coripharm Medizinprodukte GmbH & Co. KG · DE

Inventors

• Helmut Wahlig · Darmstadt, DE
• Elvira Dingeldein · Darmstadt, DE
• Edgar Wüst · Groß-Umstadt, DE
• Christoph Sattig · Dieburg, DE

Key dates

• Filing date: Jun 5, 2002
• Grant date: Feb 10, 2004
• Expiry date: Aug 21, 2022

Classification

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

Abstract

The powdery component of the implant material consists essentially of a mixture of hydroxyl apatite powder and calcium sulfate powder, wherein the hydroxyl apatite powder consists of synthetically prepared, precipitated crystalline nanoparticles of high purity, which have a crystal size of 10-20 nm width and 50-60 nm length.The specific absorbing BET surface area of the nanocrystals is preferably 100-150 m2/g.