Spinal motion preservation assemblies

US7776068B2 · kind B2 · utility

Assignee

• TranS1 Inc. · US

Inventors

• Stephen D. Ainsworth · Los Gatos, US
• Brandon Arthurs · Wilmington, US
• Robert L. Assell · Windom, US
• Eugene A. Dickhudt · Windom, US
• Bradley J. Wessman · Wilmington, US

Key dates

• Filing date: Oct 24, 2006
• Grant date: Aug 17, 2010
• Expiry date: Jan 16, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0039
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Spinal motion preservation assemblies adapted for use in a spinal motion segment are disclosed including the process for delivering and assembling the spinal motion preservation assemblies in the spinal motion segment via an axial channel created with a trans-sacral approach. Many of the spinal motion preservation assemblies make use of a dual pivot. A number of different embodiments of spinal motion preservation assemblies are disclosed which include at least one component adapted for elastic deformation under compressive loads. The disclosed mobility preservation assemblies provide for dynamic stabilization of the spinal motion segment. Other variations and implementations of the teachings are disclosed, including the sheathed delivery of membranes in order to protect the membranes before and during deployment.