Devices for inserting and expanding spinal implants

US11337829B2 · 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
• Todd Wallenstein · Ashburn, US
• Brad Vinckier · Leesburg, US
• Jordan Floyd · Westlake, US
• Gregory Lanford · Nashville, US
• Brian A. O'Shaughnessy · Nashville, US
• Thomas Morrison · Atlanta, US

Key dates

• Filing date: Mar 8, 2019
• Grant date: May 24, 2022
• Expiry date: Sep 24, 2040

Classification

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

Abstract

A driving instrument for adjusting a spinal implant includes an outer shaft having a distal end configured to actuate a proximal adjustment assembly of a spinal implant, and an inner shaft having a distal end configured to actuate a distal adjustment assembly of the spinal implant. The inner shaft is disposed within the outer shaft, with a proximal end of the inner shaft extending proximally from the outer shaft. The proximal end is configured to be rotated such that rotation of the inner shaft results in simultaneous rotation of the inner and outer shafts, with rotation of the outer shaft ceasing at a first value of resistance associated with the proximal adjustment assembly and rotation of the inner shaft ceasing at a second value of resistance associated with the distal adjustment assembly such that cessation of rotation of the inner shaft is independent from cessation of rotation of the outer shaft.