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Apparatus for attaching fractured sections of bone

  • US 6,527,774 B2
  • Filed: 04/16/2001
  • Issued: 03/04/2003
  • Est. Priority Date: 11/08/2000
  • Status: Expired due to Fees
First Claim
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1. An apparatus for attaching a first section of a bone to a second section of the bone, the second section being separated from the first section by a fracture of the bone, said apparatus comprising:

  • a bone screw having a platform for drivingly rotating said bone screw and at least two helical spikes for embedding into at least one of the first and second sections of the bone upon rotation of said platform, said platform having a first surface that is solid and that extends generally transverse to a longitudinal axis of said bone screw;

    said at least two helical spikes projecting tangentially from said first surface of said platform and extending around said longitudinal axis, said at least two helical spikes having a tip portion at a distal end which penetrates into the bone as said platform is rotated;

    said bone screw having a first condition in which a first portion of said bone screw is extendable into one of the first and second sections of the bone, said bone screw further having a second condition in which a second portion of said bone screw is extendable into the other of the first and second sections of the bone to bring the first and second sections into engagement with one another so that the fracture of the bone can heal;

    said at least two helical spikes, when embedded into at least one of the first and second sections of the bone, being resistant to toggling in the bone and to being pulled axially from the bone.

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