Elbow prosthesis and method for use

摘要

The elbow prosthesis includes an ulnar component that has a bearing end and a stem. The stem is attached to the bearing end and extends in a distal direction from it. The elbow prosthesis also has a humeral component that includes a holder end and a stem with the stem extending in a proximal direction from the holder end. The prosthesis further includes at least one bearing member that is connected to the holder end with the bearing end being attached within the holder end to allow for rotation and articulation against the at least one bearing member. The bearing end and holder end are attached to each other by a coupling mechanism that includes an opening positioned on the posterior aspect of the holder end and a mating surface on the bearing body. A method of using the elbow prosthesis and a total elbow prosthesis kit are also disclosed.

主权项

1. An elbow prosthesis comprising:
an ulnar component having a bearing end and an ulnar stem, wherein the bearing end is coupled to the ulnar stem, and wherein the bearing end comprises a bearing body having opposed arcuate shaped end portions; at least two bearing members, wherein the bearing body of the ulnar component is positioned within the at least two bearing members; a humeral component having a holder end integrally connected to a humeral stem, where the holder end includes a cavity sized to receive at least a portion of at least one of the at least two bearing members, and wherein the humeral stem extends in a proximal direction from and is non-movable relative to the holder end, the humeral component further having a channel sized to permit extension of the ulnar stem from the humeral component; and a locking member coupled to the humeral component and securing the bearing body and the at least two bearing members to the holder end of the humeral component where the locking member includes a locking member cavity for receiving at least a portion of at least one of the at least two bearing members and at least one securement member for securing the locking member to humeral component; where the holder end cavity of the humeral component cooperates with the locking member cavity and encases the at least two bearing members which in turn encase the bearing body.