Production of semifinished goods for implants based on plastic

US10603411B2 · kind B2 · utility

Assignee

• R + K CAD/CAM TECHNOLOGIE GMBH & CO. KG · DE

Inventors

• Daniel Ellmann · Neuenhagen bei Berlin, DE
• Andreas Klar · Meiningen, DE
• Wolf-Dieter Muller
• Andreas Schwitalla · Illerkirchberg, DE
• Justus Lackmann · Wolfsburg, DE
• Tobias Spintig · Berlin, DE
• Mohamed Abou-Emara · Berlin, DE
• Ilona Kallage · Berlin, DE

Key dates

• Filing date: Jun 16, 2014
• Grant date: Mar 31, 2020
• Expiry date: Jun 16, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L2430/12
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to an implant preform made of plastic, which comprises an assembly of at least one biocompatible—being intended for contact with a biological material—thermoplastic plastics unit (A) having an elasticity modulus EA and at least one thermoplastic plastics unit (B) having an elasticity modulus EB, where for the elasticity moduli of these plastics units EA<EB, and the plastics units in their assembly zone are seamlessly connected thermally to one another. The invention also relates to the production of the implant preform made of plastic and also to the use of the implant preform as an implant or for fabrication of an implant therefrom, more particularly to the use thereof as a dental implant or for fabrication of a dental implant. The invention can also be applied to other bone implants.