Patent ID: 6911048
Filing Date: 2005-06-28
Classification: A61F

Abstract:
1. A modular hip prosthesis, comprising: a proximal segment, said proximal segment including a neck lockingly engageable with a femoral head component, said proximal segment further including a male tapered portion extending distally of said neck; a distal segment having a proximal end and a distal tip, said distal segment including a male tapered portion adjacent said proximal end thereof; a metaphyseal segment having a proximal end and a distal end, said metaphyseal segment including a bone engaging outer surface portion, said metaphyseal segment further including an axial bore therethrough, said axial bore including first and second female tapered portions, said first female tapered portion located adjacent to said proximal end of said metaphyseal segment and dimensionally configured to lockingly engage said male tapered portion of said proximal segment, said second female tapered portion located adjacent to said distal end of said metaphyseal segment and dimensionally configured to lockingly engage said male tapered portion of said distal segment; wherein said proximal segment further includes an axial bore therethrough, said proximal segment engageable with said proximal end of said metaphyseal segment to align said axial bores formed through said proximal and metaphyseal segments, said distal segment further including a threaded axial bore adjacent said proximal end thereof, said proximal end of said distal segment engageable with said distal end of said metaphyseal segment to align said axial bores formed through said distal and metaphyseal segments, said modular hip prosthesis further comprising a screw dimensionally configured to pass through said aligned bores of said proximal, metaphyseal and distal segments and into threaded engagement with said threaded axial bore of said distal segment; wherein said distal segment includes a bone engaging outer surface portion; and wherein the distal tip of said distal segment has a generally parabolic axial cross section.