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Allograft bone fixation screw method and apparatus

  • US 6,162,225 A
  • Filed: 10/26/1998
  • Issued: 12/19/2000
  • Est. Priority Date: 10/26/1998
  • Status: Expired due to Term
First Claim
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1. A bone screw comprising a shank with a threaded portion and an unthreaded portion which tapers outwardly adjacent an integrally formed drive head to form a tapered undercut for the drive head, said tapered undercut being funnel shaped and tapered at an angle ranging from 10°

  • to 45°

    from the center axis of the shank and has its greatest diameter adjacent said drive head, said drive head being substantially wedge shaped.

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