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US 9,801,669 B2Granted
Bone plate
AssigneeDePuy Synthes Products, Inc.
InventorsBeat Roth, Urs Hulliger
Life of this patent
Estimating the term…
Abstract
A bone plate includes a first through hole extending through the plate along a first longitudinal axis from a proximal surface of the plate to a bone-facing distal surface thereof which, when the plate is placed on a target portion of bone in a desired orientation, faces the bone. An outer wall of the first through hole includes three wall sections provided with projections for receiving a screw head of a bone screw. The three wall sections are straight or convex.
Claims18
A bone plate, comprising:
- a first through hole extending through the plate along a first longitudinal axis from a proximal surface of the plate to a bone-facing distal surface thereof which, when the plate is placed on a target portion of bone in a desired orientation, faces the bone, an outer wall of the first through hole including three wall sections provided with projections for receiving a screw head of a central bone screw;
- and
- a plurality of first peripheral holes, each of the first peripheral holes extending through the bone plate from the proximal surface to the distal surface thereof along a corresponding first hole axis and including a thread for locking a screw head of a peripheral bone screw therein, each of the first peripheral holes overlapping a periphery of the first through hole to form a composite hole structure configured to receive peripheral bone screws through the first peripheral holes and the central bone screw through the first through hole;
- wherein a cross-sectional shape of the three wall sections in a plane including an axis extending orthogonally to a plane including the first longitudinal axis is one of straight and convexly curved toward the first through hole.
1 more element
A bone plate, comprising:
- a through hole extending through the plate along a longitudinal axis from a proximal surface to a bone-oriented distal surface which, when the plate is positioned on a bone in a desired orientation, faces the bone, an outer wall of the through hole having N non-concave wall sections provided with projections for lockingly engaging a head of a central bone screw inserted therethrough;
- and
- a plurality of peripheral holes, each of the peripheral holes extending through the bone plate from the proximal surface to the distal surface thereof along a corresponding first hole axis and including a thread for locking a screw head of a peripheral bone screw therein, each of the peripheral holes overlapping a periphery of the first through hole to form a composite hole structure configured to receive peripheral bone screws through the peripheral holes and the central bone screw through the first through hole;
- wherein a cross-sectional shape of the wall sections in a plane including an axis extending orthogonally to a plane including the first longitudinal axis is one of straight and convexly curved toward the first through hole.
1 more element
Dependencies are inferred from the claim text.