Implant and bone screw having interlocking cams
AssigneeM.O.R.E. Medical Solutions GmbH
InventorGeorg Gradl
Life of this patent
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Abstract
The invention relates to a fixation device for bones, consisting of all implant (1; 11), having at least one through hole (2; 12), to be fastened to the bone, and of at least one bone screw (3; 13) to be fastened in said through hole (2; 12), fastening elements (5; 15) being arranged in the through hole (2; 12) and at the top end of the bone screw (3; 13) and engaging with each other. In order to allow various angular positions of the bone screw (3; 13) relative to the implant (1; 11) without cold welding, interlocking earns (6, 7; 16, 17) are arranged on the associated surfaces of the through hole (2; 12) and the bone screw (3; 13) as the fastening elements (5; 15).
Claims5
A fixation device for bones comprising an implant to be fastened to the bone having a least one through hole, and at least one bone screw to be fastened in said through hole, with fastening elements being arranged in the through hole and at the upper end of the bone screw which engage with each other, characterised in that
- engaging cams (6, 7;
- 16, 17) are arranged on the associated surfaces of the through hole (2;
- 12) and the bone screw (3;
- 13) as the fastening elements (5;
- 15).
Dependencies are inferred from the claim text.