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US 9,844,401 B2Granted
Bone plate
AssigneeDePuy Synthes Products, Inc.
InventorsStefan Wolf, This Aebi
Life of this patent
Estimating the term…
Abstract
A bone plate having a first, bone-facing surface and an opposing second surface has an elongate shaft portion and a head portion that is shorter and wider in comparison thereto, with at least one through hole extending through the bone plate from the first surface to the second surface in the shaft portion. The through hole comprises a variable-angle portion with a hole axis configured to receive a threaded head of a locking screw therein at a desired angle within a permitted range of angulation relative to the hole axis. The second surface has at least one depression which extends therein along a portion of the second surface between the side wall and the through hole, the depression extending about a periphery of the through hole.
Claims18
A bone plate, comprising:
- a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;
- a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;
- a depression extending into the second surface about at least a portion of a periphery of one of the through holes;
- and
- a cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion, wherein a distance of a surface of the cavity from the second surface of the plate body increases in a direction toward the head portion.
2 more elements
A bone plate, comprising:
- a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;
- a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;
- a depression extending into the second surface about at least a portion of a periphery of one of the through holes;
- and
- a cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion,
- wherein the depression has a greater extension in a transverse direction of the bone plate than the through hole.
3 more elements
A bone plate, comprising:
- a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;
- a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;
- a depression extending into the second surface about at least a portion of a periphery of one of the through holes;
- and
- a cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion,
- wherein the depression has a substantially rectangular shape.
3 more elements
A bone plate, comprising:
- a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;
- a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;
- a depression extending into the second surface about at least a portion of a periphery of one of the through holes;
- and
- a cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion,
- wherein one of the through holes is formed as part of a combination hole which includes a compression hole, the compression hole being elongated in a longitudinal direction of the shaft portion and having an unthreaded inner surface tapering in the direction of the first surface.
3 more elements
A bone plate, comprising:
- a plate body having a first, bone-facing surface and a second surface opposing the first surface, longitudinal edges of the first and second surfaces connected to one another via lateral side walls, the plate body including an elongate shaft portion and a head portion extending from an end thereof, a distance between lateral side walls of the head portion being larger than a distance between lateral side walls of the elongate shaft portion;
- a plurality of through holes extending through the elongate shaft from the first surface to the second surface, each of the through holes configured to receive a bone fixation element therein;
- a depression extending into the second surface about at least a portion of a periphery of one of the through holes;
- a cavity extending into the second surface from a first one of the through holes closest to the head portion of the plate body toward the head portion;
- and
- a recess extending into the first surface obliquely from one of the lateral side walls, a depth of the recess being largest at the lateral side wall from which it extends.
3 more elements
Dependencies are inferred from the claim text.