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. 20, 1992
Filed:
Mar. 30, 1987
Harlan C Amstutz, Pacific Palisades, CA (US);
J Michael Kabo, Granada Hills, CA (US);
Regents of the University of California, Oakland, CA (US);
Abstract
A femoral stem type hip joint prosthesis system includes a series of shoulderless or collarless, anatomically contoured stems of differnt sizes for firm implantation into the intramedullary canal of the femur; and a series of head units having variable neck lengths so that anatomically correct positioning of the head of the prosthesis may be obtained with varying depths of implantation of the stem, and normal anatomical variations. The stem may be smoothly tapered, and may have a rectangular cross-sectional configuration with substantially greater width in the medial/lateral direction than in the anterior/posterior direction. The stem may have a medical curvature of approximately six inches and a lateral curvature of approximately three inches adjacent its proximal or upper end, and this curved upper portion blends smoothly into a tapered lower section, having a centerline which is straight, and with the implanted portion of the stem being in the order of four and one-half inches or more in length.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile