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Medical screw and method of installation

  • US 6,743,233 B1
  • Filed: 08/02/2000
  • Issued: 06/01/2004
  • Est. Priority Date: 08/02/2000
  • Status: Expired due to Fees
First Claim
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1. A method of installing a medical screw comprising the steps of:

  • providing a medical screw having a head for receiving a screw driving device and a shaft extending from said head along a longitudinal axis, wherein said shaft includes (a) a threaded portion including helical threads and (b) a distal guiding tip extending longitudinally and distally from the threaded portion and including a cylindrical portion;

    drilling an implantation site into bone at a desired location, the implantation site having a cylindrical core;

    tapping the cylindrical core with tracks that correspond to the helical threads; and

    inserting said distal guiding tip into said implantation site at a depth sufficient that a surface of the cylindrical portion contacts at least three points on the cylindrical core with each of the at least three points being separated by a track.

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