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:
Dec. 09, 2025
Filed:
Apr. 24, 2020
Waldemar Link Gmbh & Co. KG, Hamburg, DE;
Klaus Dmuschewsky, Hamburg, DE;
Emel Altan, Düsseldorf, DE;
WALDEMAR LINK GmbH & Co. KG, Hamburg, DE;
Abstract
A trial neck piece for a joint endoprosthesis is designed for temporary arrangement on a separate shaft body () that is insertable into a tubular bone (). It comprises a fastening region () which can be plugged temporarily onto a head part () of the shaft body () by means of a plug connection (l l), and a neck region (IO) for receiving a joint element () of the joint endoprosthesis. The trial neck piece (I) is designed as a separate, plug-on attachment piece which, with its fastening region (), can be plugged with form-fit engagement onto the head part () and locked. A latching device () is provided which comprises a plurality of latching stages for different height stages of the trial neck piece (I). The invention thus makes available an easily attachable trial neck piece which can be arranged in a defined manner in different height positions in order, on the one hand, to obtain a secure and defined arrangement and, on the other hand, to permit the setting of different heights. The invention further relates to an arrangement with a trial neck piece and with an excavating tool, in particular a reamer, and to an instrument set comprising a trial neck piece and an insertion instrument.