US 12,108,972 B2
Orthopedic locking screw
Nils Zander, Eckernförde (DE); and Manfred Wieland, Kiel (DE)
Assigned to Stryker European Operations Holdings LLC, Portage, MI (US)
Filed by Stryker European Operations Holdings LLC, Kalamazoo, MI (US)
Filed on Jul. 16, 2021, as Appl. No. 17/378,002.
Application 17/378,002 is a continuation of application No. 16/761,117, previously published as PCT/IB2017/057688, filed on Dec. 6, 2017.
Prior Publication US 2021/0338294 A1, Nov. 4, 2021
Int. Cl. A61B 17/86 (2006.01); A61B 17/72 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/863 (2013.01) [A61B 17/725 (2013.01); A61B 17/8635 (2013.01); A61B 2017/00526 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An orthopedic locking screw comprising:
a shaft including a thread pattern section extending along at least part of the shaft,
the thread pattern section including a first thread oriented in a first direction and a second thread oriented in a second direction opposite the first direction, the first thread including a helically extending crest and the second thread including a plurality of rhombic shaped crests recessed relative to the helically extending crest,
wherein a minimum height of each rhombic shaped crest of the plurality of rhombic shaped crests is raised relative to a first surface of the shaft, and
wherein each rhombic shaped crest of the plurality of rhombic shaped crests includes a second surface at a first radius from a longitudinal axis of the shaft, the second surface having a perimeter defined in part by an edge extending across a width of the first thread, the edge being at an oblique angle relative to an alignment direction of the helically extending crest adjacent to the rhombic shaped crest.