Patent ID: 6423067
Filing Date: 2002-07-23
Classification: A61B

Abstract:
A fastener comprising a proximal end, a distal end terminating in a tip, and a shank portion therebetween, said fastener having a longitudinal axis extending from said proximal end to said distal end and a radial axis orthogonal to said longitudinal axis said proximal end further comprising a head portion having in internal thread portion, said distal end further comprising, a threaded portion having a major root and a minor root commonly associated with threads, wherein said minor root defines a cross-section that varies non-linearly in radial dimension along said longitudinal axis from said tip to said shank portion, and wherein said shank portion likewise has a cross-section that varies non-linearly in radial dimension along said longitudinal axis of said fastener from said threaded portion to said proximal end.