Patent ID: 9687350
Date: 2017-06-27
CPC Classifications: A61F

Claim:
1. A prosthesis comprising: a first assembly comprising a first base portion that is configured to be placed against, and operatively secured to, a patient's first bone; and a second assembly comprising a second base portion that is configured to be placed against, and operatively secured to, a patient's second bone that articulates relative to the first bone, the first and second assemblies respectively defining first and second surfaces, the first and second surfaces configured to cooperate with each other to guide articulated movement between the first and second bones with the first and second assemblies operatively secured to their respective bones, at least one of the first and second base portions configured to cooperate with a separate first component defining at least a part of one of the first and second surfaces to maintain the first component in an operative state as part of its respective first or second assembly, whereby a second component configured to define at least a part of the one of the first and second surfaces is configured to be placed in an operative state selectively in place of the first component, wherein the one of the first and second assemblies has a first part and there are first and second connectors, respectively on the first part and first component, that are configured to cooperate to releasably maintain the first component in the operative state, wherein the one of the first and second assemblies is configured so that the first and second connectors are engaged as an incident of the first part and first component being moved relative to each other around an axis, wherein the first component has an outer perimeter extending around the axis and the first connector comprises a first axially facing surface adjacent the outer perimeter of the first component, wherein the second connector comprises a second axially facing surface that confronts the first axially facing surface with the first component in the operative state to thereby prevent the first component from moving axially away from the first part with the first component in the operative state, the first component and first part configured so that with the first component and first part initially spaced from each other along the axis, the first component and first part can be moved towards each other in near path along the axis into a pre-assembly relationship with the axis and each other, the first component and first part configured so that in the pre-assembly relationship the first component and first part can be engaged as an incident of the first component and first part being moved relative to each other around the axis while maintaining the pre-assembly relationship between: a) the first component and first part; and b) the axis.