Patent ID: 7063702
Filing Date: 2006-06-20
Classification: A61B,A61F,Y10S,Y10T

Abstract:
1. A screw for use in the human body formed of cortical bone from a major long bone having a medullary canal, said screw comprising a leading end, a trailing end opposite said leading end, and a shaft therebetween, said shaft having a mid-longitudinal axis, a length, and a thread extending from said shaft along at least a portion of its length, said shaft having a cross section transverse to said mid-longitudinal axis through said thread having a concavedly arcuate portion and a convexedly arcuate portion opposite said concavedly arcuate portion, said concavedly arcuate portion being formed from at least a portion of the medullary canal and extending along a majority of the length of said screw, said cross section bisecting a rotation of said thread.