Convertible glenoid implant
AssigneeHowmedica Osteonics Corp.
InventorsBrian C. Hodorek, Shawn Martin Gargac
Life of this patent
Estimating the term…
Abstract
A glenoid implant including a base plate and an articular component. The base plate can include a body and a support structure extending from a distal surface of the body. The body can include a plurality of openings. The articular component can be configured to removably couple to the base plate. The articular component can include a recessed portion configured to at least partially receive the body of the base plate. At least one engagement structure can protrude from a distal facing surface of the recessed portion. Each engagement structure can correspond to one of the plurality of openings in the body. A distal face of the articular component surrounding the recessed portion can be configured to abut the subchondral bone.
Claims20
A system, comprising:
- a base plate, including:
- a first surface configured to face bone,
- a second surface disposed on an opposite side of the base plate as the first surface,
- a lateral surface extending between the first surface and the second surface,
- a first support structure extending from the first surface, the first support structure defining a first lumen, and
- a second support structure extending from the first surface, the second support structure defining a second lumen;
- and
- a first articular component configured to be coupled to the base plate to form a first implant, the first articular implant including:
- a first surface configured to face bone,
- a second surface configured to face bone, the second surface of the first articular component being recessed within the first articular component relative to the first surface of the first articular component,
- a first engagement structure extending from the second surface of the articular component, the first engagement structure sized and configured to be received within the first lumen defined by the first support structure of the base plate, and
- a second engagement structure extending from the second surface of the articular component, the second engagement structure sized and configured to be received within the second lumen defined by the second support structure of the base plate.
A glenoid implant, comprising:
- an articular component, including:
- a concave articular surface, and
- a second surface disposed on an opposite side of the articular component from the concave articular surface,
- a third surface disposed between the concave articular surface and the second surface of the articular component, and
- a wall extending between the second surface of the articular component and the third surface of the articular component, the wall and the third surface of the articular component collectively defining a recess within the articular component, and
- a first engagement structure extending from the third surface;
- a base component sized and configured to be received within the recess defined by the articular component such that an entire periphery of the base component is disposed within and surrounded by the articular component, the base component including:
- a first surface configured to engage a glenoid;
- a second surface disposed on an opposite side of the base component as the first surface,
- a lateral surface extending between the first surface and the second surface, and
- a first support structure extending from the first surface of the base component, the first support structure defining a first lumen;
- a first screw of a first type sized and configured to be received within the first lumen defined by the first support structure, and
- a plurality of screws of a second type, each screw of the plurality of screws of the second type sized and configured to be received within a respective one of a plurality of openings defined by the base component,
- wherein the first engagement surface is sized and configured to be disposed within the first lumen when the first screw of the first type is disposed within the first lumen.
Dependencies are inferred from the claim text.