Screw fixation device, fixation kit and fixation method

US11291487B2 · kind B2 · utility

Assignee

• AZURMEDS INC. · US

Inventors

• Jean-Marie Berger · Eden Prairie, US
• Pierric Deransart · Le Belin, FR
• Christopher R. Chuinard · Traverse City, US
• Thomas Bradley Edwards · Houston, US
• Grant Edward Garrigues · Hinsdale, US
• Armodios M. Hatzidakis · Denver, US
• Gregory Nicholson · Western Springs, US
• Felix Savoie · Sherbrooke, CA

Key dates

• Filing date: Dec 23, 2019
• Grant date: Apr 5, 2022
• Expiry date: May 24, 2040

Classification

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

Abstract

Disclosed is a bone screw fixation device including two screws and only two. The bone screw includes: a first screw provided at its proximal end with a head for compressing the bone by an end-abutment; and a second screw provided at its distal end with a bone threading having a first helix pitch and at its proximal end with a bone threading having a helix with a pitch smaller than the first helix pitch.