Patent ID: 6238434
Filing Date: 2001-05-29
Classification: A61F

Abstract:
A prosthetic joint comprising:a first component for secure affixation to a first bone of the joint, the first component having an articular bearing surface facing away from the first bone;a second component for affixation to a second bone of the joint, the second component having a rotary bearing surface facing away from the second bone and having a recess extending into the rotary bearing surface, said recess defining an axis; anda bearing having first bearing surface for articular bearing engagement with the first component and a second bearing surface for rotary bearing engagement with the bearing surface of the second component, the bearing further including a projection extending from the second bearing surface and rotatably engaged in the recess of the second component, the projection defining an axis concentric with the axis of the recess; whereinthe rotary bearing surface of the second component being provided with a stop projecting therefrom and spaced from the concentric axes, and the second bearing surface of the bearing being formed with an arcuate slot concentric about the axes, said slot extending through a selected angle and slidably receiving said stop for limiting rotation of said bearing relative to said second component, said stop being removably engaged in the second component.