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:
May. 18, 2004
Filed:
Nov. 09, 2001
Lutz Biedermann, VS-Villingen, DE;
Jürgen Harms, Karlsruhe, DE;
Biedermann Motech GmbH, Schwenningen, DE;
Abstract
A bone screw having a screw member ( ) possessing a threaded section ( ) and a head ( ) and a receiving part ( ) at the head end for receiving a rod to be connected to the bone screw is provided. The receiving part ( ) has on open first bore ( ) and a substantially U-shaped cross-section having two free legs provided with a thread. Furthermore, the receiving part has a second bore ( ) on the end opposite to the first bore ( ) whose diameter is greater than that of the threaded section ( ) and smaller than that of the head ( ). On the bottom of the first bore a seat for the head ( ) is provided. In order that the screw member can be pivoted to at least one side by an enlarged angle, the edge bounding the free end of the second bore ( ) viewed relative to the axis of the first bore ( ) is of asymmetric construction.