Modular joint prostheses
OwnerEdward R. Hyde, Jr.inventor
Life of this patent
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Abstract
A modular, prosthetic, implant assembly for replacing a shoulder or hip joint is implanted through a transosseous core approach. Typically, the main route for the transosseous core approach traverses through a more-accessible bone of the joint which can be aligned with a less-accessible bone of the joint in order to facilitate treatment of articular surfaces and/or other structures in the joint. A modular implant assembly is provided which can be passed through a relatively small bone hole and then assembled in situ partly in the bone hole and finished in the joint or wholly in the joint.
Claims38
A modular, prosthetic assembly adapted to be inserted through a first bone hole having a first hole diameter and implanted at the site of interest within a bone or joint, said assembly comprising:
- a plurality of assembly modules, including at least a first and second modules, each of said plurality of assembly modules configured and dimensioned to be individually inserted through said first bone hole;
- wherein said first module provides a portion, of a uniform articular surface, said second module provides a portion of said uniform articular surface, and said plurality of assembly modules are configured to fit together to form said prosthetic assembly within the site of interest.
A modular, prosthetic assembly comprising:
- a cap piece, having a surface part that defines at least a portion of a convex, uniform, articular surface;
- and
- a plurality of collar modules that fit around the cap piece, combining to form a prosthetic head assembly each of the plurality of collar modules defining a portion of said uniform, articular surface,
- wherein the plurality of collar modules are fixedly attached to the cap piece, forming the prosthetic head assembly.
Dependencies are inferred from the claim text.