Bone cement compositions having fiber-reinforcement and/or increased flowability

US7628851B2 · kind B2 · utility

Assignee

• Synthes USA, LLC · US

Inventors

• Bryan Monro Armitage · Minneapolis, US
• Ira C. Ison · San Jose, US
• Mark Fulmer · Glenmoore, US
• Sean Kerr · Oreland, US
• Michael Lehmicke · West Chester, US
• Patrick Leamy · Dublin, IE
• William Schiffer · York, US

Key dates

• Filing date: May 30, 2008
• Grant date: Dec 8, 2009
• Expiry date: May 30, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L27/50
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates in general to implantable compositions, and method for preparing same, containing a calcium salt-containing component, optionally demineralized bone, a plurality of discrete fibers, optionally a flow additive, and optionally continuous reinforcing fibers or an array of organized fibers in the form of mesh. Advantageously, the discrete fibers have a specific aspect ratio (length/diameter) from about 50:1 to about 1000:1. The addition of a small amount of discrete fibers and/or the continuous reinforcing fibers or fiber mesh can cause drastic increases in certain mechanical properties including flexural strength, flexural toughness, and/or screw pullout strength.