MULTIPLE BEARING HUMERAL PROSTHESIS

摘要

A prosthesis to replace a portion of the anatomy, such as the humerus, can include a first shell. A second prosthesis can be positioned relative to the shell to provide the bearing surface to articulate with a glenoid prosthesis or glenoid. The second prosthesis can include a connection portion to engage a connection portion in the shell.

主权项

1. A humeral implant kit, comprising:
a shell having:
a shell wall that extends from a distal apex portion to a distal rim defining a passage operable to receive a bearing, wherein the shell wall has an internal shell wall surface defining an internal void and an external shell wall surface operable to engage the humerus;a coupling stem coupled to the shell;a snap-ring connection mechanism formed in the shell near the distal rim;a first bearing defining a concave bearing surface and having a first bearing wall extending from a first bearing distal rim, the bearing wall defining a second snap-ring connection mechanism; anda second bearing defining a convex articulating bearing surface and having a second bearing wall extending from a second bearing distal apex, a third snap-ring connection disposed between the convex articulating bearing surface and the second bearing wall.