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Proximal anchors for bone fixation system

  • US 6,942,668 B2
  • Filed: 12/23/2003
  • Issued: 09/13/2005
  • Est. Priority Date: 11/19/2001
  • Status: Expired due to Term
First Claim
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1. A bone fixation device, for securing a first bone fragment to a second bone fragment, comprising:

  • an elongate pin, having a proximal end, a distal end and a first retention structure;

    at least one distal anchor carried by the elongate pin; and

    a proximal anchor, axially moveable with respect to the elongate pin and comprising a second retention structure;

    wherein at least a portion of the second retention structure is moveable between a first position and a second position, the second position being located closer to a longitudinal axis of the elongate pin as compared to the first position so as to engage at least a portion of the first retention structure and prevent proximal movement of the proximal anchor with respect to the elongate pin while the first position allows distal movement of the proximal anchor with respect to the elongate pin;

    the proximal anchor including at least one slot which defines at least one lever arm, the second retention structure being positioned on the at least one lever arm.

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