Patent ID: 9474557
Filing Date: 2016-10-25
CPC Classification: A61B

Claim Text:
1. An intramedullary nail, comprising: an elongate body including a proximal end defined by a proximal portion, a distal end defined by a distal portion, a medial side, a lateral side, and a longitudinal axis, said elongate body defining an elongate body periphery, said proximal portion of said elongate body having an interior wall defining a transverse bore extending therethrough, said transverse bore extending from said lateral side to said medial side of said elongate body in a direction transverse to said longitudinal axis of said elongate body, said proximal portion including a cutout positioned adjacent to said transverse bore on said lateral side of said elongate body, said cutout comprising: a ledge portion extending in a substantially medial-lateral direction and positioned adjacent to a proximal most edge of said wall defining said transverse bore; a ramp portion defining a substantially planar surface, said ramp portion forming a ramp angle with said longitudinal axis of said elongate body, said ramp angle being between zero degrees and thirty degrees, wherein said ramp portion extends along the longitudinal axis of the elongate body in a distal direction, said ramp portion terminating distally at said elongate body periphery, wherein said ramp portion terminates at a position spaced distally from a distal most edge of said wall defining said transverse bore; and an intermediate portion positioned between said ledge portion and said ramp portion, said intermediate portion having an intermediate portion radius of curvature; wherein said ramp portion defines a runout portion defining a substantially planar surface, said runout portion extending in a plane substantially parallel to both said longitudinal axis of said elongate body and a plane tangent to said elongate body periphery at a lateral point of said proximal portion; and wherein said elongate body further comprises a transition portion extending proximally from said distal portion along said longitudinal axis, said transition portion having a proximal end having a proximal diameter and a distal end having a distal diameter, said proximal diameter being greater than said distal diameter, wherein said runout portion is spaced from said longitudinal axis of said elongate body by a distance greater than one-half of said distal diameter of said transition portion and less than said proximal diameter of said transition portion, wherein said runout portion terminates distally at said transition portion periphery.