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US 2019/0314065 A1Published application
Femoral Nail With Enhanced Bone Conforming Geometry
AssigneeStryker European Holdings I, LLC
InventorsAndreas Petersik, Hendrik Kluever, Giovanni Ricciardi
Life of this patent
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Abstract
A femoral nail includes a proximal section, a distal section remote from the proximal section, and an intermediate section disposed between the proximal section and distal section and having first and second curved portions. The first curved portion is positioned closer to the proximal section than the second curved portion. The second curved portion is curved in a first plane, and the first curved portion is curved in the first plane and a second and third plane.
Claims20
A femoral nail comprising:
- a proximal portion configured to engage a driving tool for driving the femoral nail into a femur;
- a distal portion remote from the proximal portion;
- and
- an intermediate portion disposed between the proximal portion and distal portion, the intermediate portion having a first bent section that is bent in three-dimensions such that a first bend of the first bent section is in a first plane, a second bend is in a second plane, and a third bend is in a third plane, the first and second planes intersecting at an oblique angle relative to each other, the third bend defining a non-zero radius of curvature in the third plane of the first bent section.
1 more element
A femoral nail comprising:
- a proximal section having a longitudinal axis extending along its length;
- a distal section remote from the proximal section;
- and
- an intermediate section disposed between the proximal section and distal section and having a straight portion and first bent portion, the first bent portion being disposed between the straight portion and the proximal section, the first bent portion being bent in first, second, and third planes such that a longitudinal axis of the straight portion is oriented relative to a longitudinal axis of the proximal section by first, second, and third angles within the respective first, second, and third planes, and wherein the first, second, and third angles differ from one another.
1 more element
A femoral nail comprising:
- a first section having a first screw hole extending through a sidewall thereof and defining a screw hole axis configured to extend toward a femoral head when the femoral nail is implanted within a femur, the screw hole axis lying in a first plane;
- and
- a second section extending from the first section and having first and second curved portions, the first curved portion being positioned closer to the first section than the second curved portion, the first curved portion being curved in the first plane and in second and third planes that are each different from the first plane, and the first curved portion having a proximal-distal length greater than that of the second curved portion.
Dependencies are inferred from the claim text.