Controlled artificial intervertebral disc implant

US7563286B2 · kind B2 · utility

Assignee

• Synthes USA, LLC · US

Inventors

• David Gerber · Exton, US
• Justin Coppes · Raynham, US
• Christopher Angelucci · Schwenksville, US
• David C. Paul · Phoenixville, US
• Pascal Stihl · West Chester, US
• Michael L. Boyer, II · Paoli, US

Key dates

• Filing date: Feb 11, 2005
• Grant date: Jul 21, 2009
• Expiry date: Apr 29, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2310/0088
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to an artificial intervertebral disc for placement between adjacent vertebrae. The artificial intervertebral disc is preferably designed to restore disc height and natural disc curvature, allow for a natural range of motion, absorb shock and provide resistance to motion and axial compression. Furthermore, the intervertebral disc may be used in the cervical, the thoracic, or the lumbar regions of the spine. The artificial intervertebral disc may include either singularly or in combination: an interior including at least one spring member preferably incorporating a arcuate surface member, a flexible core, the flexible core preferably being a slotted core, a ring spring, a winged leaf spring, or a leaf spring, or The articulating member preferably being attached to one of the endplate by an intermediate shock absorbing element.