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Composite acetabular component

  • US 6,966,932 B1
  • Filed: 02/05/2002
  • Issued: 11/22/2005
  • Est. Priority Date: 02/05/2002
  • Status: Active Grant
First Claim
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1. An acetabular liner component, comprising:

  • a ceramic insert portion having an inner surface and an outer surface; and

    a biocompatible thermoplastic backing portion molded onto the outer surface of the ceramic insert portion when the biocompatible thermoplastic backing portion is in a substantially softened state;

    a groove formed in an outer surface of said biocompatible thermoplastic backing portion adapted to receive an inter-connection member;

    wherein the outer surface of the ceramic insert portion is provided with a micro-roughness having an arithmetical mean roughness in a range of about 5 to about 10 microns and a plurality of longitudinally disposed macro-grooves so as to increase the mechanical bonding between the biocompatible thermoplastic backing portion and the outer surface of the ceramic insert portion.

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