公开(公告)号：US09642709B2

公开(公告)日：2017-05-09

申请号：US14427218

申请日：2013-09-11

Applicant: CORNELL UNIVERSITY ,  ROCHESTER INSTITUTE OF TECHNOLOGY

Inventor： Stephen Boedo ,  John F. Booker

IPC: A61F2/32 ,  A61F2/34 ,  A61F2/36 ,  A61F2/30

CPC classification number: A61F2/34 ,  A61F2/32 ,  A61F2/36 ,  A61F2/3609 ,  A61F2002/30253 ,  A61F2002/30563 ,  A61F2002/30565 ,  A61F2002/30571 ,  A61F2002/30594 ,  A61F2002/30673 ,  A61F2002/30934 ,  A61F2002/30937 ,  A61F2002/3225 ,  A61F2002/3611 ,  A61F2002/3617 ,  A61F2002/3623 ,  A61F2230/0093 ,  A61F2230/0095

Abstract: The present invention relates to an artificial hip joint replacement system. The system includes an acetabulum portion having a cup suitable to be received by a subject's acetabular bone. The cup includes a rigid portion and an elastic portion attached to the rigid portion. Also included in the system is a ball received within the cup and in contact with the elastic portion and a femoral stem attached to the ball. The elastic portion is positioned to cause expansion and allow contraction of a space between the ball and the rigid portion of the cup so they are further apart from one another during periods of low mechanical loads.