互いに対向して配置された２つのプロテーゼのアンカリングシャフトのための接続スリーブ

Japanese Patent JP7077333

B2

The invention relates to a connecting sleeve for anchoring shafts of two oppositely arranged prostheses, preferably on an elongate bone such as a femur or humerus. The reinforcing sleeve comprises two receiving bushes for one prosthesis shaft each and comprises a separable coupling region arranged therebetween for connection in such a manner as to resist shear forces and rotation. According to the invention, each receiving bush has, on the side thereof facing the coupling region, one fork of a pair of forks that interact with each other, and a fitting block is arranged on a base of the fork, the lateral surfaces of which fitting block have a distance that corresponds to an inner width of the fork, and the lateral surfaces are designed to contact flanks of the fork in a planar manner, at least one fastening screw being arranged transversely through the fork. The fork connection is simpler to produce than the known wedge connection and yet is sufficiently robust. Unlike in the case of the wedge connection, an exact fit is not required; a clearance fit between the fork and the fitting block is sufficient in principle, excessive play being eliminated by means of the fastening screw.

Helmut Day Link
Udo Borchers

JP2019549480A

May 30, 2022

March 29, 2018

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Waldemar Link GmbH & Co. KG

A61F2/28

JP2015515895A
JP2011136234A
JP2003250823A
JP2012500655A
JP2011521718A

US5383933
CN103598932A
US20040193268

Yamato Kento
Hidehiro Tokuyama

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