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:
Jun. 29, 1993
Filed:
Sep. 13, 1991
Applicant:
Inventors:
Hermann-Joseph Schmitz, Berlin, DE;
Wolf D Herold, Seefeld, DE;
Werner Zoellner, Steinebach-Woerthsee, DE;
Assignee:
Thera Patent GmbH & Co., Seefeld, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ; A61F / ; A61F / ; A61C / ;
U.S. Cl.
CPC ...
623 16 ; 623 18 ; 623 11 ; 4332011 ;
Abstract
The shaft surface of a cementlessly implantable prosthesis is provided with a large number of holes which are formed as blind or pocket holes. Each hole is surrounded by a bulb in the form of a crater edge. The bony tissue that grows into the holes and around the bulbs ensures a firm seating of the prosthesis over a long time. The holes are preferably oriented in such a way that the bone pegs that extend into them can take up a desired load which may be either a compressive or a tensile force. A tensile force exerted on the bone will stimulate its growth.