Expandable spinal implants

US11291552B2 · kind B2 · utility

Assignee

• K2M, Inc. · US

Inventors

• Steven Ludwig · Baltimore, US
• Scott Dhupar · Windsor, US
• Sabatino Bianco · Arlington, US
• Khalid Abbed · New Haven, US
• Egon Doppenberg · Lake Bluff, US
• Jennifer Moore · Leesburg, US
• John Donohoe · Sterling, US
• Scott A. Jones · Carmel, US

Key dates

• Filing date: Sep 20, 2019
• Grant date: Apr 5, 2022
• Expiry date: May 14, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/4627
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A spinal implant has proximal and distal regions, and includes upper and lower bodies. A proximal adjustment assembly is disposed between the upper and lower bodies in the proximal region of the spinal implant and is adjustably coupled to the upper and lower bodies, and a distal adjustment assembly is disposed between the upper and lower bodies in the distal region of the spinal implant and is adjustably coupled to the upper and lower bodies. The proximal and distal adjustment assemblies are independently movable with respect to each other, both concurrently and alternately, to change a vertical height of at least one of the proximal or distal regions of the spinal implant. A set screw is removably disposed within the proximal region of the spinal implant to lock the vertical height of the proximal and distal regions of the spinal implant.