Meier, Rusty T.,Deffenbaugh, Daren L.,Heldreth, Mark A.,Hazebrouck, Stephen A.
申请号：
ES12186668
公开号：
ES2593482T3
申请日:
2012.09.28
申请国别(地区):
ES
年份:
2016
代理人:
摘要：
A knee prosthesis bearing, comprising: a femoral component (12) having a surface of medial condyle (32) and a surface of lateral condyle (30), a tibial tray (14) having a platform (18) with a fastening means (20) extending inferiorly from a bottom surface (22) thereof, the platform having: (a) a posterior buttress (44) having a top surface (122), and extends anteriorly away from the rear section of the perimeter of the platform and superiorly from the top surface (24) of the platform to the uppermost surface of the posterior buttress, with the posterior buttress: (i) a side edge ( 114) having a convex surface (118) extending from the bottom so uppermost surface of the posterior buttress and a concave surface (120), making the convex surface on the concave surface extending so i nferior from the convex surface it becomes the top surface of the platform, and (ii) a medial edge (116) having a convex surface (118) extending inferiorly from the uppermost surface of the posterior buttress and a concave surface (120), making the convex surface on the concave surface that extends inferiorly from the convex surface becomes the top surface of the platform, and (b) an anterior buttress (64) having a surface uppermost (142) and a trailing edge (90, 92), and extends along an anterior section of a perimeter of the platform and superiorly from the top surface of the platform to the uppermost surface buttress above, with the rear edge a convex surface (138) and a concave surface, the convex surface shaped bottom extending from the uppermost surface buttress anterior and becoming the concave surface (140) of the rearmost edge of the anterior buttress, and a bearing (16) having an upper surface with (i) a surface of medial bearing (28) configured to articulate with the surface of medial condyle the femoral component, and (ii) a surface side bearing (26) configured to articulate with the surface of lateral condyle of the femoral component, and a lower surface (36) including a lower su
