US 12,239,539 B2
Joint replacement prosthesis with trans-cortical stems
David G. Reynolds, Fairport, NY (US)
Assigned to WRIGHT MEDICAL TECHNOLOGY, INC., Memphis, TN (US)
Filed by WRIGHT MEDICAL TECHNOLOGY, INC., Memphis, TN (US)
Filed on May 25, 2022, as Appl. No. 17/824,061.
Claims priority of provisional application 63/197,557, filed on Jun. 7, 2021.
Prior Publication US 2022/0387178 A1, Dec. 8, 2022
Int. Cl. A61F 2/30 (2006.01)
CPC A61F 2/30734 (2013.01) [A61F 2002/30217 (2013.01); A61F 2002/30329 (2013.01); A61F 2002/30349 (2013.01); A61F 2002/3035 (2013.01); A61F 2002/30433 (2013.01); A61F 2002/30507 (2013.01); A61F 2002/30609 (2013.01); A61F 2002/30787 (2013.01); A61F 2002/30894 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A joint replacement prosthesis comprising:
a base component; and
two or more modular stems;
wherein the base component comprises:
a bone-facing surface including two or more stem connectors, wherein each stem connector is configured to receive and form a connection with one of the two or more modular stems configured to be inserted through a hole in a long bone from the bone-facing surface side, and wherein each of the two or more stem connectors has a longitudinal axis and the stem connectors are independently oriented at different angles with respect to the bone-facing surface so that their respective longitudinal axes are oriented at different angles;
a lower surface that is opposite the bone-facing surface and lower with respect to the bone-facing surface; and
an alignment feature provided on the lower surface for each of the two or more stem connectors, wherein each of the alignment features are coaxially aligned with the longitudinal axis of the two or more stem connectors such that each of the alignment features facilitate alignment of the two or modular stems with the two or more stem connectors.