US 12,484,939 B2
Bone fixation devices, systems, and methods
Justin Haller, Salt Lake City, UT (US); T. Wade Fallin, Hyde Park, UT (US); and Colin S. Gregersen, Salt Lake City, UT (US)
Assigned to UNIVERSITY OF UTAH RESEARCH FOUNDATION, Salt Lake City, UT (US)
Appl. No. 18/562,145
Filed by University of Utah Research Foundation, Salt Lake City, UT (US)
PCT Filed May 14, 2022, PCT No. PCT/US2022/029333
§ 371(c)(1), (2) Date Nov. 17, 2023,
PCT Pub. No. WO2022/245676, PCT Pub. Date Nov. 24, 2022.
Application 18/562,145 is a continuation of application No. 17/325,795, filed on May 20, 2021, granted, now 11,553,948, issued on Jan. 17, 2023.
Prior Publication US 2024/0238017 A1, Jul. 18, 2024
Int. Cl. A61B 17/72 (2006.01); A61B 17/68 (2006.01); A61B 17/86 (2006.01)
CPC A61B 17/7208 (2013.01) [A61B 2017/681 (2013.01); A61B 17/8665 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A bone fixation assembly comprising:
a male member, the male member comprising:
a male member shaft comprising;
a proximal end;
a distal end; and
a first longitudinal axis;
a first bone engaging feature at the proximal end of the male member shaft, the first bone engaging feature comprising a male member head configured to engage a first cortical portion of a bone;
an external thread portion at the distal end of the male member shaft, the external thread portion having a first length and a first major diameter; and
a male load-sharing feature intermediate the first bone engaging feature and the external thread portion, the male load-sharing feature having a second length and an outer diameter defining at least one male load-sharing surface; and
a female member, the female member comprising:
a female member shaft comprising:
a proximal end;
a distal end; and
a second longitudinal axis;
a second bone engaging feature at the proximal end of the female member shaft, the second bone engaging feature configured to engage a second cortical portion of the bone;
an internal thread portion having a third length and a second major diameter, the internal thread portion configured to receive the external thread portion of the male member to removably couple the male member with the female member; and
a female load-sharing feature located distal to the internal thread portion and extending between the internal thread portion and the distal end of the female member shaft, the female load-sharing feature having a fourth length and an inner diameter defining at least one female load-sharing surface, the female load-sharing feature positioned and shaped to receive the male load-sharing feature therein;
wherein, when the bone fixation assembly is implanted in a bone, at least a portion of the at least one male load-sharing surface is positioned adjacent to at least a portion of the at least one female load-sharing surface.