The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2026
Filed:
Mar. 10, 2021
Medartis Holding Ag, Basel, CH;
Andreas Mullis, Hemmiken, CH;
Dirk Thiel, Staufen, DE;
Patrick Mark Sesiani, Schwörstadt, DE;
Stefan Olivier Würger, Lausen, CH;
Jürgen Schonhardt, Rheinfelden, DE;
Hermann Zeuner, Freiburg, DE;
MEDARTIS HOLDING AG, Basel, CH;
Abstract
The invention relates to a screw (), preferably a bone screw, comprising a shaft () with a tip (), a head () and a thread (). The shaft further comprises a longitudinal axis (A). An array of radial cross-sectional surfaces (Q) of the head () extend through the longitudinal axis (A) of the screw (), the location of each radial cross-sectional surface (Q) being defined by an azimuth angle () in a plane (E) perpendicular to the longitudinal axis (A). Each radial cross-sectional area (Q) has an area defined by the longitudinal axis (A) and the outer surface of the screw (). The thread () extends into the head () in such a way that the surface areas of the radial cross-sectional surfaces (Q') in a first azimuth angle range () are constant and the surface areas of the radial cross-sectional surfaces (Q″) in a second azimuth angle range (), which is different from the first, have a different, preferably smaller, value than the surface areas in the first azimuth angle range (). The first azimuth angle range () is at most 350°, preferably at most 345°.