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:
Jul. 30, 1991
Filed:
Jul. 16, 1990
Applicant:
Inventors:
Assignee:
Sulzer Brothers Limited, Winterthur, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ; A61F / ;
U.S. Cl.
CPC ...
623 16 ; 623 23 ;
Abstract
The reinforcement for the proximal region of a bone cement bed for a femoral head prosthesis includes a grid of crossing members at least some of which are wavy. The wavy members have a high wavy shape lengthwise and spring in as the gap between a bone cavity and a prosthesis stem narrows. The prosthesis is fixed by averaging out of the restoring forces and the gap size mechanically until the bone cement has cured.