Patent ID: 6258093
Filing Date: 2001-07-10
Classification: A61B

Abstract:
A cutting head for surgical reamers for use in enlarging the bore of the central medullary canal of a bone, said cutting head comprising:a. leading tip,b. a trailing end, said trailing end being connectable to a drive shaft,c. a length, said length being the distance from said leading tip to said trailing end,d. an asymmetrical longitudinal cross sectional circumference, said circumference increasing in diameter from said leading edge to a crest and decreasing from said crest to said trailing end,e. a plurality of grooves, said grooves extending in at least one pattern a predetermined distance along said length, thereby forming at least two flutes, each of said flutes having at least two teeth along at least a portion of a length of said flute, each tooth having a crest, said crest having a width equal to said width of said flute,whereby said cutting head asymmetrical longitudinal cross sectional circumference increases the interior diameter of bore hole as said cutting head progresses down said bore hole.