Elbow arthroplasty apparatus, system, and method
AssigneeAcumed LLC
InventorsJeff Bergquist, Caleb Martin, Mark Sommers, Bryon Morse
Life of this patent
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Abstract
The present disclosure generally relates to an elbow arthoplasty prosthesis that includes an ulnar component, a humeral component, one or more articulation liners, and a retention trap. The ulnar component includes a spherical bearing head that can be inserted into the humeral component in a number of orientations. The articulation liners and the retention trap are operatively engaged to the humeral component to retain the ulnar component within a humeral socket. The present disclosure also relates to methods of assembling and implanting the prosthetic device.
Claims18
A method for implanting an elbow prosthesis in a patient, the method comprising:
- obtaining the elbow prosthesis, the elbow prosthesis including:
- an ulnar component including a bearing end and an ulnar stem, wherein the ulnar stem extends away from the bearing end,
- a humeral component including a holder end and a humeral stem, wherein the humeral stem extends away from the holder end, and
- at least one bearing liner coupled to the holder end,
- wherein the bearing end is configured to be coupled within the holder end to articulate against the at least one bearing liner;
- making an incision in the patient to thereby expose an implantation site for the elbow prosthesis;
- determining a proper size for the ulnar component and for the humeral component;
- preparing an ulna and a humerus of the patient;
- securing the humeral component in the humerus of the patient;
- securing the ulnar component in the ulna of the patient;
- attaching the ulnar component to the humeral component;
- and
- closing the incision in the patient,
- wherein the elbow prosthesis further includes a retention trap, and wherein attaching the ulnar component to the humeral component includes rotating the retention trap relative to the humeral component thereby locking the ulnar component within the humeral component.
A method for implanting an elbow prosthesis in a patient, the method comprising:
- obtaining the elbow prosthesis, the elbow prosthesis including:
- an ulnar component including a bearing end and an ulnar stem, wherein the ulnar stem extends in a distal direction from the bearing end,
- a humeral component including a holder end and a humeral stem, wherein the humeral stem extends in a proximal direction from the holder end, and
- a coupling mechanism, the coupling mechanism including at least one bearing liner, the bearing end, and the holder end,
- wherein the at least one bearing liner is positioned within the holder end and the bearing end is configured to be rotatably coupled within the holder end and articulate against the at least one bearing liner;
- making an incision in the patient to thereby expose an implantation site for the elbow prosthesis;
- determining a proper size for the ulnar component and for the humeral component;
- preparing an ulna and a humerus of the patient;
- securing the humeral component into the humerus of the patient;
- rotatably coupling the ulnar component to the humeral component;
- securing the ulnar component in the ulna of the patient;
- and
- closing the incision in the patient,
- wherein the elbow prosthesis further includes a retention trap, and wherein rotatably coupling the ulnar component to the humeral component includes:
- inserting the bearing end of the ulnar component into the holder end of the humeral component adjacent to the at least one bearing liner;
- inserting the retention trap into the holder end;
- securing the at least one bearing liner to an inner surface of the holder end by rotating the at least one bearing liner within the humeral component to engage a locking flange of the at least one bearing liner with the a locking shoulder of the humeral component;
- and
- rotating the retention trap and the at least one bearing liner relative to the humeral component to lock the retention trap and the at least one bearing liner to the humeral component.
Dependencies are inferred from the claim text.