Anatomic implant for joints
AssigneeHowmedica Osteonics Corp.
InventorsAshish Mehta, Lance N. Terrill
Life of this patent
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Abstract
One embodiment of the present disclosure relates to a glenoid implant with a body and a keel. The body includes an articulation surface and a bone facing surface, and the keel has a depth that extends from the bone facing surface to a free end of the keel. The keel has a first length and a first width, both measured in a plane perpendicular to a direction of the depth. The first length is measured perpendicular to the first width and is defined by a first distance from an inferior end of the keel to a superior end of the keel. The first width is measured at a first location adjacent to the inferior end, and the keel has a width dimension along a first portion of the keel from the first location to the superior end that tapers from the first location toward the superior end.
Claims19
A glenoid implant comprising:
- a body with an articulation surface and a bone facing surface;
- and
- a keel having a depth extending from the bone facing surface to a free end of the keel remote from the bone facing surface, the keel having a first length and a first width both measured in a plane perpendicular to a direction of the depth, the first width being perpendicular to the first length,
- wherein a first distance from an inferior end of the keel to a superior end of the keel defines the first length, a first portion of the keel extending from the inferior end to a first location and a second portion of the keel extending from the first location to the superior end, the first location being closer to the inferior end than the superior end, and
- wherein the first width is measured at the first location, the keel having a width dimension along the first portion from the first location to the inferior end that tapers from the first location toward a single inferior-most location of the keel at the inferior end and the keel having a width dimension along the second portion from the first location to the superior end that tapers from the first location toward the superior end.
A glenoid implant comprising:
- a medial part with a bone facing surface;
- and
- a lateral part comprising:
- a lateral facing surface, the lateral facing surface including a concave portion;
- and
- a medial facing surface configured to couple to the medial part,
- wherein the medial facing surface includes a peripheral region and a central region, the peripheral region separating an outer edge of the lateral part from the central region, and the central region having a protrusion relative to the peripheral region,
- wherein the peripheral region abuts the central region along an inner edge, and
- wherein the lateral part has a first thickness at the outer edge, a second thickness at the inner edge, and a third thickness in the central region, the second thickness being less than the first thickness, and the third thickness being no less than the second thickness and no greater than the first thickness.
Dependencies are inferred from the claim text.