Bone plate for osteosynthesis

Details Bone plate for osteosynthesis Bone plate for osteosynthesis

A - Human Necessities

61

B

A61B 17/80 (2006.01)

Patent

CA 2415634

The bone plate (1) is intended for osteosynthesis. It has a top surface (2), a bottom surface (3) facing the bone, and a plurality of holes (5) with central axes (6) for receiving bone screws (10), arranged along the longitudinal axis (4) of the plate and connecting the top surface (2) with the bottom surface (3). Two of the holes (5) are provided with a bulge (8) shaped in the form of a hollow cone, extending concentrically to the central axis (6) and projecting over the bottom surface (3). The bone plate - even If a relatively small plate thickness is used - ensures a secure, angularly and axially stable screw anchorage.

L'invention concerne une plaque osseuse (1) s'utilisant en ostéosynthèse. Cette plaque comporte une face supérieure (2), une face inférieure (3) côté os, ainsi que plusieurs trous (5) répartis le long de l'axe longitudinal de la plaque (4) et reliant la face supérieure et la face inférieure (2 ;3), qui présentent des axes centraux (6) pour recevoir des vis osseuses (10). Deux des trous (5) présentent un bourrelet (8) conique creux, concentrique à l'axe central (6) et faisant saillie au-dessus de la face inférieure (3). Cette plaque osseuse permet, même en cas d'épaisseur relativement réduite de la plaque, d'assurer une stabilité angulaire et axiale fiable de l'ancrage des vis.

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