| 摘要 |
<p>A prosthetic joint including a socket-carrying member and a ball-carrying member both of which have stems for insertion into the medullary canals of the bone. The socket has a downwardly extending cylindrical passageway which terminates in a hemispherical bottom surface and a slat which intersects the passageway. The stem of the ball member has generally flat side surfaces and is proportioned to fit through the slot, and the ball has a curvature matching the spherical bottom surface. A shank portion between the ball and stem has a recess where a retainer is snapped onto the shank to lock the members in hinged relationship.</p> |
