Expanding spinal fusion cage

US11944553B2 · kind B2 · utility

Assignees

• DePuy Synthes Products, Inc. · US
• Stratasys Ltd. · US

Inventors

• Peyton Hopson · Jacksonville, US
• Hassan Serhan · Easton, US
• Eric Buehlmann · Duxbury, US
• Robert E. Sommerich · Norton, US
• Thomas Gamache · Raynham, US
• Cynthia Star · Dresher, US
• Philip Reeves · Wirksworth, GB
• Oliver Smith · Stratham, US
• David Hayden · Newburg, US
• Loic Le Merlus · Nottingham, GB

Key dates

• Filing date: Jan 8, 2021
• Grant date: Apr 2, 2024
• Expiry date: Feb 26, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B33Y50/02
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Disclosed herein are expanding spinal fusion cage embodiments including an expandable cage assembly configured to expand from a collapsed state to an expanded state in an intervertebral space when inflated with a material. The assembly can include an inflatable section defining an interior volume configured to receive the material and expand the interior volume in response to a pressure from the received material to cause the expandable cage assembly to transition from the collapsed state to the expanded state, and a stabilization section configured to restrain the inflatable section during inflation.