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:
Mar. 11, 1997
Filed:
Oct. 17, 1994
Applicant:
Inventors:
Hartmut K alberer, Deizisau, DE;
Hans-Georg Pfaff, Ostfildern, DE;
Assignee:
Cerasiv GmbH, Innovatives Keramik-Engineering, Plochingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623 22 ; 623 18 ;
Abstract
The invention relates to a hip joint socket for insertion into bone tissue, with an outer metal shell and an inner ceramic shell, the ceramic shell being anchored in the metal shell. To reduce its size while simultaneously reducing the wall thickness of the ceramic shell the inside of the metal shell and the outside of the ceramic shell have a spherical shape accurately fitted to one another and means are disposed for equalizing the transmission of force between the ceramic shell and the metal shell.