US 12,453,636 B2
Shoulder arthroplasty implant system
Armodios M. Hatzidakis, Denver, CO (US); Heinz R. Hoenecke, Jr., Del Mar, CA (US); Scott R. Jacobson, Bend, OR (US); James D. Kelly, II, San Francisco, CA (US); Drew Miller, Atlanta, GA (US); Nathaniel E. Skinner, Salt Lake City, UT (US); Charles M. Jobin, New York, NY (US); Brent A. Ponce, Birmingham, AL (US); Michael T. Freehill, Ann Arbor, MI (US); Matthew Ramsey, Wayne, PA (US); Jean-Marie Berger, Eden Prairie, MN (US); and Edwards Rhettson Hobgood, Madison, MS (US)
Assigned to Integrated Shoulder Collaboration, Inc., Plainsboro, NJ (US)
Filed by Integrated Shoulder Collaboration, Inc., Plainsboro, NJ (US)
Filed on Oct. 8, 2021, as Appl. No. 17/497,711.
Application 17/497,711 is a continuation of application No. 16/908,601, filed on Jun. 22, 2020, granted, now 11,833,055.
Application 16/908,601 is a continuation in part of application No. 16/208,324, filed on Dec. 3, 2018, granted, now 11,033,399, issued on Jun. 15, 2021.
Application 16/208,324 is a continuation of application No. 15/445,658, filed on Feb. 28, 2017, granted, now 10,172,714, issued on Jan. 8, 2019.
Claims priority of provisional application 62/300,853, filed on Feb. 28, 2016.
Prior Publication US 2022/0023054 A1, Jan. 27, 2022
Int. Cl. A61F 2/40 (2006.01); A61B 17/16 (2006.01); A61B 17/17 (2006.01); A61B 17/68 (2006.01); A61F 2/28 (2006.01); A61F 2/30 (2006.01); A61F 2/46 (2006.01)
CPC A61F 2/40 (2013.01) [A61B 17/1659 (2013.01); A61B 17/1684 (2013.01); A61B 17/1778 (2016.11); A61B 17/68 (2013.01); A61F 2/28 (2013.01); A61F 2/30 (2013.01); A61F 2/4003 (2013.01); A61F 2/4059 (2013.01); A61F 2002/2835 (2013.01); A61F 2002/30331 (2013.01); A61F 2002/30332 (2013.01); A61F 2002/305 (2013.01); A61F 2002/30841 (2013.01); A61F 2002/30884 (2013.01); A61F 2002/4022 (2013.01); A61F 2/4612 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A shoulder arthroplasty implant comprising:
a stem having a proximal portion, a distal portion, an anterior portion, a posterior portion, a medial portion, and a lateral portion, wherein the stem has a size and shape for insertion into an intramedullary canal of a humerus bone; and
a plurality of fins extending radially outward from the outer surface of the stem, the plurality of fins comprising a medial fin extending outward from the medial portion and a lateral fin extending outward from the lateral portion, each of the plurality of fins being configured to engage cancellous bone in a metaphysis or epiphysis of the humerus bone to provide rotational stability to the stem;
wherein the distal portion comprises a distal taper decreasing in size in a direction extending from the proximal portion toward the distal portion;
wherein a lateral surface of the distal taper comprises a convex lateral curve extending in a direction from the proximal portion toward the distal portion;
wherein a medial surface of the distal taper comprises a concave medial curve extending in a direction from the proximal portion toward the distal portion;
wherein the distal portion comprises a medial-to-lateral taper, such that an anterior-posterior width of the medial fin is greater than an anterior-posterior width of the lateral fin.