Bone replacement part made of glass ionomer cement

US5314474A · kind A · utility

Assignee

• Thera Patent GmbH & Co KG Gesellschaft fur Industrielle Schutzrechte · DE

Inventors

• Jan-Hinnerk Helms · Hamburg, DE
• Gotz Geyer · Würzburg, DE
• Erich Wanek · Kaufering, DE
• Werner Zollner · Eitting, DE
• Oswald Gasser · Hanerau-Hademarschen, DE

Key dates

• Filing date: Apr 2, 1992
• Grant date: May 24, 1994
• Expiry date: Apr 2, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S623/923
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Bone replacement parts consisting of glass ionomer cement are superior to those made of ceramics especially since they may easily be produced and machined using common grinding and milling tools. The required prosthesis part may therefore be formed of freshly mixed glass ionomer cement during the respective operation, or an industrially prefabricated formed body approximating the idealized shape of the bone part to be replaced may be adapted to the anatomic conditions given.