Please download the dossier by clicking on the dossier button x
×

Trochlear implants and methods of use

  • US 8,852,286 B2
  • Filed: 08/25/2010
  • Issued: 10/07/2014
  • Est. Priority Date: 08/25/2009
  • Status: Active Grant
First Claim
Patent Images

1. An implant comprising:

  • an articular end having an upper surface, a side surface, and a lower surface;

    the upper surface and lower surface each intersect the side surface, the upper surface has a first surface curvature, a central surface curvature, and a second surface curvature, wherein the central surface curvature is formed along a partial torus and has a saddle point; and

    a stem, which extends from the lower surface in a direction away from the upper surface of the articular end and has a central axis, wherein the location of the saddle point is offset along a horizontal direction from the location of the central axis by a distance ranging from between about 1 to about 5 millimeters,the stem having at least one groove about a perimeter of the stem,the groove defined by a partial torus having a groove tubular radius ranging from about 0.25 millimeters to about 2 millimeters,the groove blending into the stem with a groove blend having an edge radius ranging from about 0.1 millimeters to about 1 millimeter,the groove extends continuously about the perimeter of the stem.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×