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:
Dec. 05, 2000
Filed:
Feb. 04, 1999
Harlan C Amstutz, Pacific Palisades, CA (US);
Other;
Abstract
A metal-to-metal surface hip joint replacement method includes the steps of forming a hard metallic spherical femoral surface replacement prosthesis having a central tapered stem and a mating metallic socket prosthesis, with a sphericity tolerance of about one to three microns, a spacing tolerance of about 100 to 300 microns, and slightly greater spacing at the equatorial zone, mounting a centrally located guide pin on the femoral ball or head, using an apertured relocator guide when needed, using a saw cutoff guide with multiple slots for axial adjustments, using a cylindrical starter drill for initial positioning of the drilling of a tapered central opening, and using a tapered guide pin located in the tapered opening for guiding a chamfering step.