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:
Nov. 15, 1994
Filed:
Sep. 20, 1993
Applicant:
Inventors:
Thomas D Petersen, San Diego, CA (US);
Richard A Lane, Ft. Wayne, IN (US);
Assignee:
Zimmer, Inc., Warsaw, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
606 91 ;
Abstract
The acetabular cup positioner of this invention provides a resilient collar to be carried on its distal end for contacting the interior surface of the acetabular cup. The resilient collar prevents damage to the interior of the cup during impaction. Since the resilient collar will compress a small amount during the impaction, the threaded connector of the positioner and the threads for the acetabular cup will be under a sizable load. Therefore, to protect the positioner and the cup, the threaded connector is shiftably connected to the positioner body. The connector is biased toward the distal end by a helical spring.