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:
May. 26, 1998
Filed:
Nov. 13, 1996
Applicant:
Inventor:
Robert A Cunningham, Bellaire, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623 23 ;
Abstract
A femoral prosthesis has load shoulders for transferring normal loading to the femur at the proximal end to reduce stress shielding. The femur is resected to provide a flat load shoulder perpendicular to the axis of the femur. The prosthesis has a mating load shoulder in its proximal section which lands on the load shoulders formed in the femur. The prosthesis has a stem that extends downward to a distal end. The intermediate portion of the stem between the distal end and the proximal end is reduced in diameter to add flexibility. The distal end is substantially the diameter of the bone cavity.