Screw inserter instruments and methods

US11224472B2 · kind B2 · utility

Assignee

• Medos International Sarl · CH

Inventors

• Joshua Rodriguez · Providence, US
• Daniel J. Moreno · El Paso, US
• Nicholas Pavento · Attleboro, US
• Keanan R. Smith · Quincy, US
• James W. Murray · Durham, US
• Eric Biester · Raynham, US

Key dates

• Filing date: Jun 13, 2019
• Grant date: Jan 18, 2022
• Expiry date: Dec 9, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/00477
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Screw inserter instruments and methods for implanting a bone screw are disclosed herein. In one exemplary embodiment, a screw inserter instrument can include a screw drive assembly having a first handle and a driver shaft coupled to the first handle, and a stylet assembly having a second handle and a stylet extending through the driver shaft. The first handle can have a locked configuration, in which the first handle and the driver shaft are coupled such that the first handle can maintain the driver shaft in a fixed position while the second handle is rotated relative to the first handle, and an unlocked configuration, in which the first handle and the driver shaft can rotate simultaneously in a first direction and the first handle can rotate independent of the driver shaft in a second opposite direction.