Patent ID: 6019776
Filing Date: 2000-02-01
Classification: A61B

Abstract:
A depth guided stylet comprising:an elongated rod having first and second ends and a longitudinal axis, said first end terminating in a point adapted for piercing hard tissue;self-tapping threads extending from said point along said elongated rod for a predetermined distance, said self-tapping threads adapted to self-tap into hard tissue; anda second set of threads provided on said elongated rod in a location between said self-tapping threads and said handle, wherein said elongated rod comprises a first section having a first diameter, and a second section having a second diameter larger than said first diameter;wherein said self-tapping threads are provided on said first section, and said second set of threads are provided on said second section; andwherein said second set of threads are adapted to mate with a set of threads within a cannula that fits over said elongated rod.