Osteonics Corp.

Alfred J. Zarnowski

Matthew V. Lyons

Harry E., Iii Figgie

Matthew V Lyons

Alfred J Zarnowski

Robert G Averill

Harry E Figgie, Iii

Iii Figgie Harry E

A femoral stem surgical instrument system includes a handle component and an impact component, either one of which is selectively coupled with a femoral stem through a recess in the femoral stem, the recess providing separate facilities for the appropriate coupling of either of the components with the femoral stem, with each of the separate facilities being protected against damage when the other of the facilities is in use.

Femoral stem surgical instrument system

An acetabular cup has a shell component with an outer surface including a first spherical surface portion and a second spherical surface portion, and an acetabulum is prepared with an inner surface having a spherical configuration complementary to the second spherical surface portion of the shell component, the radius of the first spherical surface portion being slightly greater than the radius of the second spherical surface portion such that upon nesting of the second spherical surface portion of the shell component in contiguous relationship with the inner surface of the acetabulum, the first spherical surface portion engages the inner surface of the acetabulum in an interference fit to secure the shell component within the prepared acetabulum.

Dual-radius acetabular cup component

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Hoboken, NJ, United States of America

Matthew V Lyons