Bone fastener and method of manufacturing the same

US9198701B2 · kind B2 · utility

Assignee

• Stryker Trauma GmbH · CH

Inventors

• Ole Prien · Kiel, DE
• Stefan Voelzow · Troisdorf, DE

Key dates

• Filing date: Dec 17, 2010
• Grant date: Dec 1, 2015
• Expiry date: Dec 17, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B17/72
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A bone fastener for use in orthopaedic surgery for anchoring an intramedullary nail to bone has a shaft with a front region and a rear region adjacent to the front region. The rear region has one or more explantation grooves helically arranged for facilitating the explantation of the bone fastener. Two axially spaced apart grooves or groove sections are separated by a flat shaft portion defining an outside diameter of the rear region, wherein the rear region has a core diameter greater than a core diameter of the front region.