US 12,458,514 B2
Metaphyseal referencing technique and instrument
Alexander Paul Wolfe, Fort Wayne, IN (US); and David R. Stump, Columbia City, IN (US)
Assigned to HOWMEDICA OSTEONICS CORP., Mahwah, NJ (US)
Appl. No. 17/276,925
Filed by HOWMEDICA OSTEONICS CORP., Mahwah, NJ (US)
PCT Filed Oct. 1, 2019, PCT No. PCT/US2019/054024
§ 371(c)(1), (2) Date Mar. 17, 2021,
PCT Pub. No. WO2020/072466, PCT Pub. Date Apr. 9, 2020.
Claims priority of provisional application 62/740,257, filed on Oct. 2, 2018.
Prior Publication US 2021/0338456 A1, Nov. 4, 2021
Int. Cl. A61F 2/46 (2006.01); A61B 17/17 (2006.01); A61F 2/40 (2006.01); A61B 17/16 (2006.01)
CPC A61F 2/4612 (2013.01) [A61F 2/4003 (2013.01); A61B 17/1684 (2013.01); A61B 17/1778 (2016.11); A61F 2002/4659 (2013.01); A61F 2002/4687 (2013.01)] 37 Claims
OG exemplary drawing
 
1. A humeral guide for providing proper alignment of a stem portion of an implant within a diaphysis of a humerus bone and a proximal portion of the implant in a metaphysis of the humerus bone, the humeral guide comprising:
a base comprising:
a first surface configured to be disposed within a cavity formed in the metaphysis such that the first surface contacts the metaphysis, and
a second surface separated from the first surface by a depth stop, the depth stop extending radially outwardly from the first surface and including a contact surface configured to engage a recessed or resected surface of the humerus, wherein the first surface of the base is sized to fit within an outer periphery of the metaphysis; and
a guide feature extending from the second surface and defining a lumen having a central axis, the lumen being configured to guide a tool into a diaphysis of the humerus bone along a central portion of a canal in the diaphysis, the guide feature positioned at a superior region of the base.