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:
Sep. 11, 1990
Filed:
Apr. 05, 1989
Applicant:
Inventor:
Kurt Karpf, Holderbank, CH;
Assignee:
Sulzer Brothers Limited, Winterthur, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623 22 ;
Abstract
The acetabulum has a metal outer shell and a plastic cup within the shell. The outer shell is in the shape of a frustum and at least three plugs extend from about the periphery of the base of the shell for implanting in a hip bone. Each plug has an expandable portion provided with circular toothing and is expandable by a pin which becomes locked in place after expanding the plug within the hip bone.