Bone screws and surgical sets comprising bone screws

US10751100B2 · kind B2 · utility

Assignee

• MEDARTIS AG · CH

Inventors

• Dirk Thiel · Staufen, DE
• Andreas MULLIS · Hemmiken, CH
• Juergen Schonhardt · Rheinfelden (Baden), DE
• Hermann Zeuner · Glückstadt, DE
• Simon Martin Schaetzle · Gottenheim, DE

Key dates

• Filing date: Nov 22, 2017
• Grant date: Aug 25, 2020
• Expiry date: Apr 5, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B17/8061
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A bone screw comprising a first end having an engagement contour for engaging with a tool to facilitate insertion or removal of the bone screw, and a blocking element is arranged at a second end thereof. The blocking element is provided with a circumferential outside surface which comprises at least one clamping surface which—when viewed in an azimuth plane perpendicular to a longitudinal axis of the bone screw—widens outwardly in a wedge-shaped manner away from the longitudinal axis. The bone plate includes at least one opening which is at least partially delimited by an inside wall having an inner contour for receiving and fixing the blocking element of the bone screw. At least one bone screw and at least one bone plate together form a surgical set.