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:
Oct. 25, 2011
Filed:
Oct. 27, 2005
Pete Reed, Cincinnati, OH (US);
Claus Schaffrath, München, DE;
Gerhard Kleinszig, Buch, DE;
Gunther Becht, Dornach, DE;
Pete Reed, Cincinnati, OH (US);
Claus Schaffrath, München, DE;
Gerhard Kleinszig, Buch, DE;
Gunther Becht, Dornach, DE;
Brainlab AG, Feldkirchen, DE;
Abstract
A vertebral spreading instrument for moving apart two vertebrae of a spine includes a plurality of spreading fingers and a spreading mechanism for adjusting a distance between the spreading fingers. The spreading mechanism includes a first and a second part, the first and second parts each including a respective marker trackable by a navigation system. Relative positions of the first and second parts change when the distance between the spreading fingers is adjusted, and different relative positions are unequivocally assigned to different distances of the spreading fingers.