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:
Feb. 11, 2003
Filed:
Jul. 06, 2001
Thomas Willi, Breite Nuerensdorf, CH;
Ines Baum, Konstanz, DE;
Sulzer Orthopedics Ltd., Bear, CH;
Abstract
The invention relates to a ball draw-off apparatus for shaft prostheses with balls ( ) which can be placed onto the prosthesis neck ( ). The apparatus has two rotary bodies (5a, ) which are rotatably supported in a housing ( ), which can in each case be rotated with a lever arm ( ) and which with their axes of rotation ( ) lie in a common plane and form an open gap S in the projection onto the plane F for the introduction of the prosthesis neck ( ). The rotary bodies have a profile which with increasing rotation decreases the gap S for clamping the prosthesis neck ( ) and causes an increase of the distance of its upper edge ( ) from the plane F in order to produce a draw-off force P at the placed on ball directly or indirectly via an intermediate body.