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Variable geometry rim surface acetabular shell liner

  • US 7,682,398 B2
  • Filed: 11/28/2006
  • Issued: 03/23/2010
  • Est. Priority Date: 03/14/2000
  • Status: Expired due to Fees
First Claim
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1. A constrained liner having a central axis, comprising:

  • (a) an internal concave surface of the constrained liner having an opening adapted to receive a head of a femoral component, wherein the internal concave surface provides greater than hemispherical coverage of the head at a constraining portion of the constrained liner;

    (b) an external surface positioned on an opposing side of the internal concave surface; and

    (c) a rim located at the opening of the internal concave surface, the rim comprising a variable angle chamfer surface separate from the constraining portion, the variable angle chamfer surface forming at least a portion of the rim that varies angularly with respect to the central axis of the constrained liner around the rim.

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