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:
Jan. 14, 1992
Filed:
Sep. 20, 1990
Carl H Jacobs, South Bend, IN (US);
H Ravindranath Shetty, Warsaw, IN (US);
Zimmer, Inc., Warsaw, IN (US);
Abstract
A prosthetic implant including a base portion and an additional portion which is to be securely attached to the base portion. The additional portion includes at least one post extending therefrom which is adapted to be readily received in a corresponding reverse tapered hole in the base portion. The post is adapted to be mechanically spread out to cause at least a portion of the post to become wider than the opening of the hole, thus resisting subsequent separation of the post from the hole. This secures the additional portion to the base portion of the implant. The post may be a stud-type extension integrally formed with or secured to the additional portion, or the post may be a separate member which is received in a post hole in the additional portion such that the post portion of the separate member extends from the additional portion. The post may be solid or may have a channel therethrough. The additional portion may include a substrate with a porous surface bonded or secured thereto.