US 12,257,155 B2
Modular endoprosthesis shaft system with rotation element
Helmut D. Link, Hamburg (DE); Udo Borchers, Norderstedt (DE); and Gunnar Erb, Hamburg (DE)
Assigned to Waldemar Link GmbH & Co. KG, Hamburg (DE)
Filed by Waldemar Link GmbH & Co. KG, Hamburg (DE)
Filed on Apr. 17, 2023, as Appl. No. 18/301,873.
Application 18/301,873 is a continuation of application No. 16/772,766, granted, now 11,654,029, previously published as PCT/EP2018/084335, filed on Dec. 11, 2018.
Claims priority of application No. 17207776 (EP), filed on Dec. 15, 2017.
Prior Publication US 2023/0285157 A1, Sep. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/36 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/3672 (2013.01) [A61F 2002/30365 (2013.01); A61F 2002/30367 (2013.01); A61F 2002/30474 (2013.01); A61F 2002/3674 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An endoprosthesis shaft system for elongate bones, comprising:
an anchoring part; and
a shaft, which is formed from module elements that can be coupled by means of a plug connection,
wherein a mutual rotation of the elements along the shaft is adjustable and is blocked by means of an anti-rotation mechanism, and
wherein, in order to adjust the rotation, a rotation piece is provided as a further module element, which has a self-contained rotation adjustment device and a clamping device as a means for blocking the rotation, wherein the rotation piece has two end faces, for the plug connection, and a jacket, wherein the self-contained rotation adjustment device comprises a distal end and a proximal end, the distal end configured to extend into a portion of the jacket, wherein a perimeter of the distal end is smaller than a diameter of the proximal end.