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. 07, 2005
Filed:
Jul. 10, 2003
Dietmar Kubein-meesenburg, Goettingen, DE;
Hans Naegerl, Gleichen, DE;
Peter Adam, Dachau, DE;
Joachim Theusner, Munich, DE;
Dietmar Kubein-Meesenburg, Goettingen, DE;
Hans Naegerl, Gleichen, DE;
Peter Adam, Dachau, DE;
Joachim Theusner, Munich, DE;
HJS Gelenk System GmbH, Munich, DE;
Abstract
An artificial joint () suitable for use as an endoprosthesis for a human knee joint, having a first joint compartment () formed by a first condyle () and a first socket () and a second joint compartment () formed by a second condyle () and a second socket (). The contact surfaces (C) of the respective joint compartments () are offset in the main functional plane. To further improve the characteristics of the artificial joint (), the contact surfaces (C) of the two joint compartments () are sloped as a function of the flexion angle such that the surface normals () of the contact surfaces (C) have a common point of intersection at every flexion angle. This arrangement of the contact surfaces (C) achieves self-stabilization of the joint () both when a rotary motion or torsion and when lateral forces are introduced.