US 12,076,246 B2
Orthopedic PAEK-on-polymer bearings
Aiguo Wang, Wayne, NJ (US); Zongtao Zhang, Riverdale, NJ (US); Daniel E. Lawrynowicz, Monroe, NY (US); and Shi-Shen Yau, Berkeley Heights, NJ (US)
Assigned to Howmedica Osteonics Corp., Mahwah, NJ (US)
Filed by Howmedica Osteonics Corp., Mahwah, NJ (US)
Filed on Jan. 25, 2018, as Appl. No. 15/879,886.
Application 15/879,886 is a continuation of application No. 12/793,184, filed on Jun. 3, 2010, granted, now 9,907,660.
Claims priority of provisional application 61/217,776, filed on Jun. 4, 2009.
Prior Publication US 2018/0147063 A1, May 31, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/32 (2006.01); A61F 2/30 (2006.01); A61F 2/38 (2006.01); A61F 2/40 (2006.01); A61F 2/42 (2006.01); A61L 27/16 (2006.01); A61L 27/18 (2006.01); A61F 2/44 (2006.01)
CPC A61F 2/32 (2013.01) [A61F 2/30767 (2013.01); A61F 2/38 (2013.01); A61L 27/16 (2013.01); A61L 27/18 (2013.01); A61F 2002/30014 (2013.01); A61F 2002/30016 (2013.01); A61F 2002/30067 (2013.01); A61F 2002/30563 (2013.01); A61F 2002/30934 (2013.01); A61F 2/40 (2013.01); A61F 2/42 (2013.01); A61F 2/44 (2013.01); A61F 2250/0018 (2013.01); A61F 2250/0019 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An orthopedic prosthetic knee, shoulder or ankle joint comprising:
a joint couple having a first joint component capable of being mounted on a femur, humerus or talus, the first joint component having a first bearing surface made of a poly aryl ether ketone (PAEK), and a second joint component capable of being mounted on a proximal tibia, glenoid or tibia, the second joint component having a second bearing surface made of a polymer, the first and second bearing surfaces in sliding engagement directly with one another,
wherein the first bearing surface made of the PAEK is composed of a substantially pure non-fiber reinforced polyetheretherketone (PEEK) and the second bearing surface made of the polymer is composed of ultra high molecular weight polyethylene (UHMWPE), and
wherein the first bearing surface has a higher shore D hardness than the second bearing surface.