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US 10,182,924 B2Granted
Prosthetic joint with articulating surface layers comprising ADLC
AssigneeDePuy Synthes Products, Inc.
InventorsBeat Lechmann, Thomas Küenzi, Robert Frigg, Andreas Appenzeller
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Abstract
The prosthetic joint has at least two members having each a cooperating articulating surface layer on a substrate material. At least one of said articulating surface layers comprises amorphous diamond-like carbon; or Titanium Nitrate (TiN) on a bonding layer bonded to the substrate material. The prosthetic joint provides a reduction of the number of wear debris and shows enhanced dry run properties.
Claims10
An intervertebral implant comprising:
- an upper apposition member including an upper terminal surface sized and configured to abut a first vertebra, a lower surface opposite the upper terminal surface, and a first recess that extends into the lower surface;
- a lower apposition member including a lower terminal surface sized and configured to abut a second vertebra, an upper surface opposite the lower terminal surface, and a second recess that extends into the upper surface;
- a first substrate coupled to the upper apposition member, the first substrate including a first curved surface;
- an articulating surface layer and a bonding layer positioned between the articulating surface layer and the first curved surface, the articulating surface layer including a multi-layer composite, wherein the multi-layer composite includes a layer consisting of titanium and a layer consisting of titanium nitride adjacent the layer consisting of titanium;
- and
- a second substrate coupled to the lower apposition member, the second substrate including a second curved surface configured to movably contact the first curved surface so that the upper apposition member is moveable with respect to the lower apposition member.
3 more elements
Dependencies are inferred from the claim text.