Point contact bone compression plate
DC CAFCFirst Claim
1. A compression plate for osteosynthesis, said plate having a longitudinal axis, an upper surface, a lower surface and a plurality of screw holes spaced in the direction of the longitudinal axis, said lower surface being arched concavely transversely to the longitudinal axis of the plate, in combination with open sections along the side edges of the plate between the screw holes, said open sections, with the concave lower surface of the plate, forming studs along the side edges of the lower surface for contact with a bone.
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Accused Products
Abstract
A bone plate for use in osteosynthesis having a plurality of contact elements extending from its lower surface so that contact between plate and bone is reduced to the minimum contact needed during attachment of the plate to a bone.
497 Citations
15 Claims
- 1. A compression plate for osteosynthesis, said plate having a longitudinal axis, an upper surface, a lower surface and a plurality of screw holes spaced in the direction of the longitudinal axis, said lower surface being arched concavely transversely to the longitudinal axis of the plate, in combination with open sections along the side edges of the plate between the screw holes, said open sections, with the concave lower surface of the plate, forming studs along the side edges of the lower surface for contact with a bone.
- 7. A metallic compression plate for osteosynthesis, said plate having a longitudinal axis, an upper surface, a lower surface, side walls joining said upper and lower surfaces and a plurality of screw holes spaced in the direction of said longitudinal axis, in combination with a plurality of individual, non-metallic, support studs attached to the lower surface of the plate at the sides of said lower surface and longitudinally spaced in the direction of said axis, said studs providing bone contact, at selected points along the sides of said plate, and spacing the central portion of the lower surface of said plate along the longitudinal axis from the bone.
- 9. A bone plate assembly comprising a compression bone plate and a plurality of bone screws for attaching said plate to a bone, said plate having a longitudinal axis, an upper surface, a lower surface and a plurality of screw holes for receiving said screws, spaced in the direction of the longitudinal axis, said lower surface being arched concavely transversely to the longitudinal axis of the plate, in combination with open sections along the side edges of the plate between the screw holes, said open sections, with the concave undersurface of the plate, forming studs for bone contact along the side edges of the lower surface of the plate.
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14. A compression plate for osteosynthesis, said plate having a longitudinal axis, an upper surface, a lower surface and a plurality of screw holes spaced in the direction of the longitudinal axis, said lower surface being arched concavely, transversely to the longitudinal axis of the plate, in combination with arcuate cut out sections between the holes, the intersection of surfaces formed by said cut out sections and the concave lower surface of the plate forming studs for bone contact.
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15. A compression plate for osteosynthesis, said plate having a longitudinal axis, an upper surface, a concave lower surface, side walls joining said upper and lower surfaces and a plurality of screw holes spaced in the direction of said longitudinal axis, in combination with a plurality of clips removably attached to said plate and spaced along the length of said plate, each of said clips extending across the upper surface of the plate, down the side walls thereof and having elements extending below the lower surface of said plate to provide a limited area of bone contact.
Specification