The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 1994
Filed:
Jun. 17, 1993
Scott A Jones, Eighty Four, PA (US);
Stelkast Incorporated, Pittsburgh, PA (US);
Abstract
An acetabular cup having optionally removable portions to permit a choice between methods of affixation is provided. The cup has recesses in the surface of the wall of the cup. A post extends from the base of the recess inwardly toward the interior of the cup, but does not extend past the inner surface of the wall into the interior of the cup. A very thin annular section of the wall remains at the base of the recess. To open a hole, a tool is used to grasp and pull the post. The pulling force applied to the post causes the wall at the annular section to break or tear. The base and post is removed and a hole remains through which a fastener can be inserted. The hole or recess is configured to receive a standard bone screw, but may be configured to complement the shape of the head of any desired bone fastener.