US 12,102,541 B2
Shoulder prosthesis with variable inclination humeral head component
John W. Sperling, Rochester, MN (US); Aaron C. Treat, Rochester, MN (US); Bruce R. Kline, Winona, MN (US); and Michael B. Larson, Red Wing, MN (US)
Assigned to Mayo Foundation for Medical Education and Research, Rochester, MN (US)
Filed by Mayo Foundation for Medical Education and Research, Rochester, MN (US)
Filed on Jul. 20, 2021, as Appl. No. 17/380,525.
Application 17/380,525 is a continuation of application No. 16/253,607, filed on Jan. 22, 2019, granted, now 11,096,792.
Application 16/253,607 is a continuation of application No. 14/773,605, granted, now 10,226,349, issued on Mar. 12, 2019, previously published as PCT/US2014/020308, filed on Mar. 4, 2014.
Claims priority of provisional application 61/774,969, filed on Mar. 8, 2013.
Prior Publication US 2022/0000628 A1, Jan. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/40 (2006.01); A61F 2/46 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/4014 (2013.01) [A61F 2/4684 (2013.01); A61F 2002/30378 (2013.01); A61F 2002/30538 (2013.01); A61F 2002/30617 (2013.01); A61F 2002/4037 (2013.01); A61F 2/4637 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A joint prosthesis comprising:
an implant dimensioned to be implanted in a first bone of a joint of a subject;
a prosthetic head having an outer surface dimensioned for articulation with an articular surface of a natural or artificial joint surface of a second bone of the joint;
an adapter dimensioned to be impacted into a depression in an end surface of the prosthetic head opposite the outer surface of the prosthetic head thereby forming an interference fit between the adapter and the depression; and
a mounting stud having a first end and a second end, the first end being dimensioned for impaction into a socket in the adapter thereby forming an interference fit between the first end and the socket, the first end of the mounting stud including a spherical surface, the spherical surface extending from a longitudinal axis of the first end of the mounting stud toward the second end of the mounting stud, the second end being dimensioned for insertion into an opening in the implant,
wherein the first end of the mounting stud and the socket are configured to allow for adjustment of an orientation of the prosthetic head relative to the mounting stud over a range of inclination angles before forming the interference fit between the first end of the mounting stud and the socket, and wherein a selected inclination angle within the range of inclination angles is fixed by the interference fit between the first end of the mounting stud and the socket after implantation and in the absence of a fastener.