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:
Oct. 16, 1979
Filed:
Apr. 28, 1978
Applicant:
Inventors:
Anton Zeibig, Ottensoos, DE;
John T Scales, Stanmore, GB;
Assignee:
Rosenthal Technik AG, Bavaria, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
3-191 ; 3-1913 ; 128 / ; 128 / ;
Abstract
A bone joint endoprosthesis comprises a spherical body of the joint with hole in it for receiving a shaft spigot; a shaft is embedded in bone; the shaft has a spigot which is received in the hole; a spreader, comprised of a material that swells when it is wetted, is wrapped over the spigot in the hole or is inside the spigot and the spreader expands radially in the hole or inside the spigot to secure the joint; shaping and profiling of the spigot and the wall of the hole for effective retention of the spreader are disclosed.