Endoprosthesis having a plug-in connection and improved...

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/28 (2006.01) A61F 2/36 (2006.01)

Patent

CA 2734331

The invention relates to an endoprosthesis, particularly for the at least partial replacement of a long bone, comprising a plug-in connection for connecting a shaft (2) to another part (1) of the prosthesis, wherein the plug-in connection (3) comprises an axial projection (33) and a socket (34) According to the invention, provision is made that a radial transverse channel (53) is provided on one part of the plug-in connection (3), said radial transverse channel (53) engaging behind the plug-in connection and having a center axis (55) that is offset (d) relative to the axis (56) of a transverse bore (52) arranged on the other part of the plug-in connection, and a clamping element (6) which is to be inserted into the transverse channel (53) and whose point (62), in the inserted state, engages in the transverse bore (52). In this way, it is possible to achieve an effective securing action even in the event of an unfavorable tolerance pairing, without adversely affecting the sensitive projection itself.

Linvention concerne une endoprothèse, en particulier, pour remplacer au moins en partie un os long, comprenant un connecteur pour relier une tige (2) à une autre partie de prothèse (1), le connecteur (3) comprenant une saillie axiale (33) et un logement (34). Linvention prévoit quau niveau dune partie du connecteur (3) se trouve un canal transversal radial qui est en prise à larrière avec le connecteur (53) et dont laxe médian (55) présente un décalage (d) par rapport à laxe (56) dun alésage transversal (52) disposé au niveau de lautre partie du connecteur (52), et un élément de tension (6) qui doit être utilisé dans le canal transversal (53) et dont la pointe (62) est en prise, à létat utilisé, dans lalésage transversal (52). On peut ainsi obtenir une fixation efficace même en cas dappariement à tolérance défavorable et cela, sans endommager la saillie fragile.

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