Glenosphere assembly
AssigneeHowmedica Osteonics Corp.
InventorsBenjamin DASSONVILLE, Gilles HENRY, Olivier ZANARDI
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Abstract
Provided herein are various embodiments of an improved glenoid implant assembly that includes a baseplate, a polymer glenosphere, and an interfacing component. The interfacing component can be made of a material that is more rigid than the polymer glenosphere, has a bowl-shaped configuration with a convex side and a recessed side, where the convex side is configured to be secured to the circular recessed portion of the polymer glenosphere and the recessed side is configured to securely receive the baseplate. The interfacing component is interposed between the polymer glenosphere and the baseplate and provide a secure attachment between the polymer glenosphere and the baseplate.
Claims21
A glenoid implant assembly comprising:
- a baseplate comprising a proximal end, a distal end, an outer periphery, and a frustoconical side surface extending from the proximal end to the distal end and defining a male-type tapered surface and configured to be secured to a glenoid;
- a polymer glenosphere having a proximal end and a distal end, including a convex articular surface extending distally from the proximal end and a distal surface provided on the distal end, and a circular recessed portion recessed from the distal surface and forming an interior contour of the circular recessed portion;
- and
- an interfacing component, made of a material that is more rigid than the polymer glenosphere, having a bowl-shaped configuration with a convex side and a recessed side, wherein the convex side is configured to secure to the circular recessed portion of the polymer glenosphere;
- wherein the recessed side of the interfacing component is configured with an annular interior surface defining a female-type tapered surface to receive and form a friction lock engagement with the male-type tapered surface of the baseplate, and
- wherein when the polymer glenosphere, the interfacing component, and the baseplate are assembled into the glenoid implant assembly, the interfacing component is interposed between the polymer glenosphere and the baseplate and provide a secure attachment between the polymer glenosphere and the baseplate.
A glenoid implant assembly comprising:
- a polymer glenosphere having a proximal end and a distal end, including a convex articular surface extending distally from the proximal end and a distal surface provided on the distal end, and a circular recessed portion recessed from the distal surface and forming an interior contour of the circular recessed portion;
- and
- an interfacing component, made of a material that is more rigid than the polymer glenosphere, having a bowl-shaped configuration with a convex side and a recessed side, wherein the convex side is configured to secure to the circular recessed portion of the polymer glenosphere;
- wherein the recessed side of the interfacing component is configured with an annular interior surface defining a female-type tapered surface to receive and form a friction lock engagement with the male-type tapered surface of the baseplate, and
- wherein when the polymer glenosphere and the interfacing component are assembled, the interfacing component provides a rigid frame for the polymer glenosphere.
Dependencies are inferred from the claim text.