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. 10, 1991
Filed:
Dec. 29, 1989
Applicant:
Inventors:
Michael J Pappas, Caldwell, NJ (US);
Frederick F Buechel, South Orange, NJ (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623 23 ;
Abstract
An improved stem-type prosthesis, including a head, stem and neck providing reduced bending and shear loading of the neck thereby allowing the use of a smaller neck to improve the range of motion between the prosthesis and an acetabular cavity and to allow the use of a more complete spherical head thereby improving wear and separation resistance of the prosthesis from other components such as from an acetabular component.