Invention Grant
- Patent Title: Revision prosthesis shaft for a revision joint endoprosthesis
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Application No.: US16466239Application Date: 2017-12-05
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Publication No.: US11213399B2Publication Date: 2022-01-04
- Inventor: Helmut D. Link
- Applicant: Waldemar Link GmbH & Co. KG
- Applicant Address: DE Hamburg
- Assignee: Waldemar Link GmbH & Co. KG
- Current Assignee: Waldemar Link GmbH & Co. KG
- Current Assignee Address: DE Hamburg
- Agency: Haug Partners LLP
- Agent Joseph V. Saphia
- Priority: EP16202345 20161206
- International Application: PCT/EP2017/081570 WO 20171205
- International Announcement: WO2018/104331 WO 20180614
- Main IPC: A61F2/36
- IPC: A61F2/36 ; A61F2/30

Abstract:
The invention relates to a revision prosthesis shaft of a revision joint endoprosthesis for anchoring in an elongate bone (9), in particular femur. The surface is designed for adhesive agent-free fastening in the proximal epimetaphysis (91) and the diaphysis (92) of the bone. According to the invention, a distal epimetaphyseal extension (2) is provided at the far end of the shaft (12), the tip of which extension reaches into the distal epimetaphysis (93) of the bone. The extension (2) is designed for fastening in the distal epimetaphysis (93) by means of an adhesive agent (3), in particular bone cement. The invention combines the advantages of cement-free fastening, namely of the shaft in itself in the diaphysis (92), with the advantages of cemented fastening, namely of the extension in the distal epimetaphysis (93). Even in difficult cases in which sufficient hold previously could not be achieved for lack of fastening distance in the diaphysis, stable anchoring can thus be achieved. This increases the safety and longevity of the revision. The invention further relates to a corresponding implantation method.
Public/Granted literature
- US20200060832A1 REVISION PROSTHESIS SHAFT FOR A REVISION JOINT ENDOPROSTHESIS Public/Granted day:2020-02-27
Information query
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