Patent ID: 9056010
Filing Date: 2015-06-16
Classification: A61F

Abstract:
1. An acetabular cup and sheath assembly, comprising: a cup-shaped sheath including an interior and a bottom portion; and an acetabular cup including an outer bone fixation surface; an impactor instrument removably attached to the acetabular cup; wherein the acetabular cup is positioned within the interior of the cup-shaped sheath with the bottom portion of the sheath positioned in front of the outer bone fixation surface of the acetabular cup and the impactor instrument extending through an opening in the sheath, the sheath and acetabular cup together configured to pass through a surgical wound toward an implantation site, and wherein the acetabular cup is entirely enclosed within the interior of the cup-shaped sheath; wherein the outer bone fixation surface of the acetabular cup comprises an outer hemi-spherical porous frictional surface that is shielded by the bottom portion of the sheath; wherein the outer hemi-spherical porous frictional surface of the acetabular cup is enclosed within the interior of the cup-shaped sheath to thereby shield the outer hemi-spherical porous frictional surface from bio-matter; and wherein the bottom portion of the sheath further comprises a penetration structure for passing the acetabular cup through the bottom portion of the sheath when the acetabular cup is proximately close to an implantation site; and wherein the cup-shaped sheath is attached to the impactor instrument to facilitate removal of the cup-shaped sheath subsequent to implantation of the acetabular cup.