Bone plate

Details Bone plate Bone plate

A - Human Necessities

61

B

A61B 17/80 (2006.01) A61B 17/86 (2006.01) A61L 31/06 (2006.01) A61L 31/12 (2006.01)

Patent

CA 2230058

The bone plate proposed has several conical holes which taper towards the surface in contact with the bone and two screws designed to anchor the plate in place. Each of the screws has a conical head, with a patterned curved surface, shaped to fit into the conical holes in the plate, plus a threaded shank designed to anchor the screw in the bone. The patterned curved surface of the screw head is harder than the material of which the plate is made in the vicinity of the holes.

L'invention concerne une plaque (1) pour liaison osseuse, qui possède plusieurs trous (3) coniques se rétrécissant en direction de la surface de contact (2) des os et deux vis (4) destinées à l'ancrage de la plaque. Les vis (4) sont constituées d'une tête conique (5) conçue pour être introduite dans les trous coniques (3) de la plaque, la tête ayant une forme adaptée et une surface latérale structurée, et d'une partie filetée (6) destinée à l'ancrage dans l'os. La surface latérale structurée a une dureté supérieure à celle du matériau de la plaque (1) dans la zone de ses trous (3).

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