Artificial intervertebral disc

US4946378A · kind A · utility

Assignee

• Asahi Kogaku Kogyo Kabushiki Kaisha · JP

Inventors

• Yasuhiko Hirayama · Tokyo, JP
• Haruko Ikata · Tokyo, JP
• Satoshi Ojima · Tokyo, JP
• Hiromi Matsuzaki · Tokyo, JP

Key dates

• Filing date: Nov 22, 1988
• Grant date: Aug 7, 1990
• Expiry date: Nov 22, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S606/91
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An artificial intervertebral disc comprises a pair of end bodies which are provided, on their outer surfaces, with apatite layers. The disc includes a medical synthetic polymeric intermediate which is held between the end bodies through connecting members.